检索结果-内蒙古大学图书馆

m.asurem.nt of the parity-violating asym.etry param.ter αb and the helicity am.litudes for the decay Λb0→J/ψΛ0 with the ATLAS detector

引用

Physical Review D 2014年第9期89卷 092009-092009页

作者： G. Aad T. Abajyan B. Abbott J. Abdallah S. Abdel Khalek O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. J. Adelm.n S. Adom.it T. Adye T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen A. Ahm.d F. Ahm.dov G. Aielli T. P. A. Åkesson G. Akim.to A. V. Akim.v J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport S. E. Allwood-Spiers J. Alm.nd A. Aloisio R. Alon A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung D. Am.dei V. V. Am.osov S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.G. Am.ndsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai J. P. Araque A. T. H. Arce J-F. Arguin S. Argyropoulos m. Arik A. J. Arm.ruster O. Arnaez V. Arnal O. Arslan A. Artam.nov G. Artoni S. Asai N. Asbah A. Ashkenazi S. Ask B. Åsm.n L. Asquith K. Assam.gan R. Astalos m. Atkinson N. B. Atlay B. Auerbach E. Auge K. Augsten m. Aurousseau G. Avolio G. Azuelos Y. Azum. m. A. Baak C. Bacci H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker S. Baker P. Balek F. Balli E. Banas Sw. Banerjee D. Banfi A. Bangert A. A. E. Bannoura V. Bansal H. S. Bansil L. Barak S. P. Baranov T. Barber E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett Z. Barnovska A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton P. Bartos V. Bartsch A. Bassalat A. Basye R. L. Bate CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Ohio USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Laboratorio de Instrumentacao e Fisica Experimental de Particulas—LIP Lisboa Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland Department of Physics Boston University Boston M

A m.asurem.nt of the parity-violating decay asym.etry param.ter, αb, and the helicity am.litudes for the decay Λb0→J/ψ(μ+μ−)Λ0(pπ−) is reported. The analysis is based on 1400 Λb0 and Λ¯b0 baryons selected in 4.6 fb−1 of proton–proton collision data with a center-of-m.ss energy of 7 TeV recorded by the ATLAS experim.nt at the LHC. By com.ining the Λb0 and Λ¯b0 sam.les under the assum.tion of CP conservation, the value of αb is m.asured to be 0.30±0.16(stat)±0.06(syst). This m.asurem.nt provides a test of theoretical m.dels based on perturbative QCD or heavy-quark effective theory.

关键词：

来源：评论

学校读者我要写书评

暂无评论

m.asurem.nts of norm.lized differential cross sections for tt¯ production in pp collisions at (s)=7 TeV using the ATLAS detector

引用

Physical Review D 2014年第7期90卷 072004-072004页

作者： G. Aad T. Abajyan B. Abbott J. Abdallah S. Abdel Khalek O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. J. Adelm.n S. Adom.it T. Adye T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen F. Ahm.dov G. Aielli T. P. A. Åkesson G. Akim.to A. V. Akim.v J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport S. E. Allwood-Spiers J. Alm.nd A. Aloisio R. Alon A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung D. Am.dei V. V. Am.osov S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.G. Am.ndsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai J. P. Araque A. T. H. Arce J-F. Arguin S. Argyropoulos m. Arik A. J. Arm.ruster O. Arnaez V. Arnal O. Arslan A. Artam.nov G. Artoni S. Asai N. Asbah A. Ashkenazi S. Ask B. Åsm.n L. Asquith K. Assam.gan R. Astalos m. Atkinson N. B. Atlay B. Auerbach E. Auge K. Augsten m. Aurousseau G. Avolio G. Azuelos Y. Azum. m. A. Baak C. Bacci H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker S. Baker P. Balek F. Balli E. Banas Sw. Banerjee A. Bangert A. A. E. Bannoura V. Bansal H. S. Bansil L. Barak S. P. Baranov T. Barber E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett Z. Barnovska A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton P. Bartos V. Bartsch A. Bassalat A. Basye R. L. Bates L. Batkova J. R. CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland Department of Physics Boston University Boston MA

m.asurem.nts of norm.lized differential cross sections for top-quark pair production are presented as a function of the top-quark transverse m.m.ntum. and of the m.ss, transverse m.m.ntum. and rapidity of the tt¯ system. in proton–proton collisions at a center-of-m.ss energy of s=7 TeV. The data set corresponds to an integrated lum.nosity of 4.6 fb−1, recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. Events are selected in the lepton+jets channel, requiring exactly one lepton and at least four jets with at least one of the jets tagged as originating from.a b-quark. The m.asured spectra are corrected for detector efficiency and resolution effects and are com.ared to several m.nte Carlo sim.lations and theory calculations. The results are in fair agreem.nt with the predictions in a wide kinem.tic range. Nevertheless, data distributions are softer than predicted for higher values of the m.ss of the tt¯ system.and of the top-quark transverse m.m.ntum. The m.asurem.nts can also discrim.nate am.ng different sets of parton distribution functions.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Search for supersym.etry in events with four or m.re leptons in s=8 TeV pp collisions with the ATLAS detector

引用

Physical Review D 2014年第5期90卷 052001-052001页

作者： G. Aad B. Abbott J. Abdallah S. Abdel Khalek O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu R. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. J. Adelm.n S. Adom.it T. Adye T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen F. Ahm.dov G. Aielli H. Akerstedt T. P. A. Åkesson G. Akim.to A. V. Akim.v G. L. Alberghi J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport J. Alm.nd A. Aloisio A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung D. Am.dei S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.G. Am.ndsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis I. Angelozzi P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai J. P. Araque A. T. H. Arce J-F. Arguin S. Argyropoulos m. Arik A. J. Arm.ruster O. Arnaez V. Arnal H. Arnold O. Arslan A. Artam.nov G. Artoni S. Asai N. Asbah A. Ashkenazi B. Åsm.n L. Asquith K. Assam.gan R. Astalos m. Atkinson N. B. Atlay B. Auerbach K. Augsten m. Aurousseau G. Avolio G. Azuelos Y. Azum. m. A. Baak C. Bacci H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai T. Bain J. T. Baines O. K. Baker S. Baker P. Balek F. Balli E. Banas Sw. Banerjee A. Bangert A. A. E. Bannoura V. Bansal H. S. Bansil L. Barak S. P. Baranov E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett Z. Barnovska A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton P. Bartos V. Bartsch A. Bassalat A. Basye R. L. Bates L. Batkova J. R. Batley m. Battistin F. Bauer H. CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France CERN Geneva Switzerland Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Institute of Physics University of Belgrade Belgrade Serbia Laboratorio de Instrumentacao e Fisica Experimental de Particulas–LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland Department of Physics Boston University Boston Massachusetts USA Joint Institute for Nuclea

Results from.a search for supersym.etry in events with four or m.re leptons including electrons, m.ons and taus are presented. The analysis uses a data sam.le corresponding to 20.3 fb−1 of proton-proton collisions delivered by the Large Hadron Collider at s=8 TeV and recorded by the ATLAS detector. Signal regions are designed to target supersym.etric scenarios that can be either enriched in or depleted of events involving the production of a Z boson. No significant deviations are observed in data from.standard m.del predictions and results are used to set upper lim.ts on the event yields from.processes beyond the standard m.del. Exclusion lim.ts at the 95% confidence level on the m.sses of relevant supersym.etric particles are obtained. In R-parity-violating sim.lified m.dels with decays of the lightest supersym.etric particle to electrons and m.ons, lim.ts of 1350 and 750 GeV are placed on gluino and chargino m.sses, respectively. In R-parity-conserving sim.lified m.dels with heavy neutralinos decaying to a m.ssless lightest supersym.etric particle, heavy neutralino m.sses up to 620 GeV are excluded. Lim.ts are also placed on other supersym.etric scenarios.

关键词：

来源：评论

学校读者我要写书评

暂无评论

m.asurem.nt of long-range pseudorapidity correlations and azim.thal harm.nics in sNN=5.02 TeV proton-lead collisions with the ATLAS detector

引用

Physical Review C 2014年第4期90卷 044906-044906页

作者： G. Aad B. Abbott J. Abdallah S. Abdel Khalek O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu R. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. J. Adelm.n S. Adom.it T. Adye T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen F. Ahm.dov G. Aielli H. Akerstedt T. P. A. Åkesson G. Akim.to A. V. Akim.v G. L. Alberghi J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport J. Alm.nd A. Aloisio A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung D. Am.dei S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.G. Am.ndsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis I. Angelozzi P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai J. P. Araque A. T. H. Arce J-F. Arguin S. Argyropoulos m. Arik A. J. Arm.ruster O. Arnaez V. Arnal H. Arnold m. Arratia O. Arslan A. Artam.nov G. Artoni S. Asai N. Asbah A. Ashkenazi B. Åsm.n L. Asquith K. Assam.gan R. Astalos m. Atkinson N. B. Atlay B. Auerbach K. Augsten m. Aurousseau G. Avolio G. Azuelos Y. Azum. m. A. Baak A. E. Baas C. Bacci H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai T. Bain J. T. Baines O. K. Baker P. Balek F. Balli E. Banas Sw. Banerjee A. A. E. Bannoura V. Bansal H. S. Bansil L. Barak S. P. Baranov E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett Z. Barnovska A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton P. Bartos V. Bartsch A. Bassalat A. Basye R. L. Bates J. R. Batley m. Battaglia m. Battistin F. Baue CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion: Israel Institute of Technology Haifa Israel CERN Geneva Switzerland Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Institute of Physics University of Belgrade Belgrade Serbia Laboratorio de Instrumentacao e Fisica Experimental de Particulas-LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland Department of Physics Boston University Boston Massachusetts USA Joint Institute for Nuclear Research JINR Dubna Dubna Russia INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fi

m.asurem.nts of two-particle correlation functions and the first five azim.thal harm.nics, v1 to v5, are presented, using 28 nb−1 of p+Pb collisions at a nucleon-nucleon center-of-m.ss energy of sNN=5.02 TeV m.asured with the ATLAS detector at the LHC. Significant long-range “ridgelike” correlations are observed for pairs with sm.ll relative azim.thal angle (|Δϕ|<π/3) and back-to-back pairs (|Δϕ|>2π/3) over the transverse m.m.ntum.range 0.4m.er of reconstructed tracks or the total transverse energy on the Pb-fragm.ntation side. The azim.thal structure of such long-range correlations is Fourier decom.osed to obtain the harm.nics vn as a function of pT and event activity. The extracted vn values for n=2 to 5 decrease with n. The v2 and v3 values are found to be positive in the m.asured pT range. The v1 is also m.asured as a function of pT and is observed to change sign around pT≈1.5–2.0 GeV and then increase to about 0.1 for pT>4 GeV. The v2(pT), v3(pT), and v4(pT) are com.ared to the vn coefficients in Pb+Pb collisions at sNN=2.76 TeV with sim.lar event m.ltiplicities. Reasonable agreem.nt is observed after accounting for the difference in the average pT of particles produced in the two collision system..

关键词：

来源：评论

学校读者我要写书评

暂无评论

m.asurem.nts of spin correlation in top-antitop quark events from.proton-proton collisions at s=7 TeV using the ATLAS detector

引用

Physical Review D 2014年第11期90卷 112016-112016页

作者： G. Aad B. Abbott J. Abdallah S. Abdel Khalek O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu R. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. J. Adelm.n S. Adom.it T. Adye T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen F. Ahm.dov G. Aielli H. Akerstedt T. P. A. Åkesson G. Akim.to A. V. Akim.v G. L. Alberghi J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport J. Alm.nd A. Aloisio A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung D. Am.dei S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.G. Am.ndsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis I. Angelozzi P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai J. P. Araque A. T. H. Arce J-F. Arguin S. Argyropoulos m. Arik A. J. Arm.ruster O. Arnaez V. Arnal H. Arnold m. Arratia O. Arslan A. Artam.nov G. Artoni S. Asai N. Asbah A. Ashkenazi B. Åsm.n L. Asquith K. Assam.gan R. Astalos m. Atkinson N. B. Atlay B. Auerbach K. Augsten m. Aurousseau G. Avolio G. Azuelos Y. Azum. m. A. Baak A. Baas C. Bacci H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai T. Bain J. T. Baines O. K. Baker P. Balek F. Balli E. Banas Sw. Banerjee A. A. E. Bannoura V. Bansal H. S. Bansil L. Barak S. P. Baranov E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett Z. Barnovska A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton P. Bartos V. Bartsch A. Bassalat A. Basye R. L. Bates L. Batkova J. R. Batley m. Battaglia m. Battistin CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto ON Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion: Israel Institute of Technology Haifa Israel CERN Geneva Switzerland Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Institute of Physics University of Belgrade Belgrade Serbia Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland Department of Physics Boston University Boston Massachusetts USA Joint Institute for Nuclear Research JINR Dubna Dubna Russia INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisic

m.asurem.nts of spin correlation in top quark pair production are presented using data collected with the ATLAS detector at the LHC with proton-proton collisions at a center-of-m.ss energy of 7 TeV, corresponding to an integrated lum.nosity of 4.6 fb−1. Events are selected in final states with two charged leptons and at least two jets and in final states with one charged lepton and at least four jets. Four different observables sensitive to different properties of the top quark pair production m.chanism.are used to extract the correlation between the top and antitop quark spins. Som. of these observables are m.asured for the first tim.. The m.asurem.nts are in good agreem.nt with the Standard m.del prediction at next-to-leading-order accuracy.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Flavor tagged tim.-dependent angular analysis of the Bs0→J/ψϕ decay and extraction of ΔΓs and the weak phase ϕs in ATLAS

引用

Physical Review D 2014年第5期90卷 052007-052007页

作者： G. Aad T. Abajyan B. Abbott J. Abdallah S. Abdel Khalek O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. T. N. Addy J. Adelm.n S. Adom.it T. Adye T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen A. Ahm.d F. Ahm.dov G. Aielli T. P. A. Åkesson G. Akim.to A. V. Akim.v J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport S. E. Allwood-Spiers J. Alm.nd A. Aloisio R. Alon A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung D. Am.dei V. V. Am.osov S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.G. Am.ndsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai J. P. Araque A. T. H. Arce J-F. Arguin S. Argyropoulos m. Arik A. J. Arm.ruster O. Arnaez V. Arnal O. Arslan A. Artam.nov G. Artoni S. Asai N. Asbah A. Ashkenazi S. Ask B. Åsm.n L. Asquith K. Assam.gan R. Astalos m. Atkinson N. B. Atlay B. Auerbach E. Auge K. Augsten m. Aurousseau G. Avolio G. Azuelos Y. Azum. m. A. Baak C. Bacci A. m. Bach H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker S. Baker P. Balek F. Balli E. Banas Sw. Banerjee D. Banfi A. Bangert A. A. E. Bannoura V. Bansal H. S. Bansil L. Barak S. P. Baranov T. Barber E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett Z. Barnovska A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton P. Bartos V. Bartsch A. Bassal CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto ON Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France Department of Physics Stockholm University Stockholm Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP Lisboa Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University o

A m.asurem.nt of the Bs0→J/ψϕ decay param.ters, updated to include flavor tagging is reported using 4.9 fb−1 of integrated lum.nosity collected by the ATLAS detector from.s=7 TeV pp collisions recorded in 2011 at the LHC. The values m.asured for the physical param.ters are ϕs=0.12±0.25(stat)±0.05(syst) radΔΓs=0.053±0.021(stat)±0.010(syst) ps−1Γs=0.677±0.007(stat)±0.004(syst) ps−1|A∥(0)|2=0.220±0.008(stat)±0.009(syst)|A0(0)|2=0.529±0.006(stat)±0.012(syst)δ⊥=3.89±0.47(stat)±0.11(syst) radwhere the param.ter ΔΓs is constrained to be positive. The S-wave contribution was m.asured and found to be com.atible with zero. Results for ϕs and ΔΓs are also presented as 68% and 95% likelihood contours, which show agreem.nt with the Standard m.del expectations.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Search for a m.lti-Higgs-boson cascade in W+W−bb¯ events with the ATLAS detector in pp collisions at s=8 TeV

引用

Physical Review D 2014年第3期89卷 032002-032002页

作者： G. Aad T. Abajyan B. Abbott J. Abdallah S. Abdel Khalek O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. T. N. Addy J. Adelm.n S. Adom.it T. Adye S. Aefsky T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen A. Ahm.d F. Ahm.dov m. Ahsan G. Aielli T. P. A. Åkesson G. Akim.to A. V. Akim.v m. A. Alam.J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob m. Aliev G. Alim.nti L. Alio J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport S. E. Allwood-Spiers J. Alm.nd A. Aloisio R. Alon A. Alonso F. Alonso A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung V. V. Am.osov S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.G. Am.ndsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce S. Arfaoui J-F. Arguin S. Argyropoulos E. Arik m. Arik A. J. Arm.ruster O. Arnaez V. Arnal O. Arslan A. Artam.nov G. Artoni S. Asai N. Asbah S. Ask B. Åsm.n L. Asquith K. Assam.gan R. Astalos A. Astbury m. Atkinson N. B. Atlay B. Auerbach E. Auge K. Augsten m. Aurousseau G. Avolio G. Azuelos Y. Azum. m. A. Baak C. Bacci A. m. Bach H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker S. Baker P. Balek F. Balli E. Banas Sw. Banerjee D. Banfi A. Bangert V. Bansal H. S. Bansil L. Barak S. P. Baranov T. Barber E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton P. Bartos V. Bartsch A. Ba Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg Germany Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona Barcelona Spain LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Mississippi USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Albert Einstein Center for Fundamental Physics and Laboratory for High Ene

A search is presented for new particles in an extension to the Standard m.del that includes a heavy Higgs boson (H0), an interm.diate charged Higgs-boson pair (H±), and a light Higgs boson (h0). The analysis searches for events involving the production of a single heavy neutral Higgs boson which decays to the charged Higgs boson and a W boson, where the charged Higgs boson subsequently decays into a W boson and the lightest neutral Higgs boson decaying to a bottom.antibottom.quark pair. Such a cascade results in a W-boson pair and a bottom.antibottom.quark pair in the final state. Events with exactly one lepton, m.ssing transverse m.m.ntum. and at least four jets are selected from.a data sam.le corresponding to an integrated lum.nosity of 20.3 fb−1, collected by the ATLAS detector in proton-proton collisions at s=8 TeV at the LHC. The data are found to be consistent with Standard m.del predictions, and 95% confidence-level upper lim.ts are set on the product of cross section and branching ratio. These lim.ts range from.0.065 to 43 pb as a function of H0 and H± m.sses, with m.0 fixed at 125 GeV.

关键词：

来源：评论

学校读者我要写书评

暂无评论

m.asurem.nt of the inclusive isolated prom.t photons cross section in pp collisions at s=7 TeV with the ATLAS detector using 4.6 fb−1

引用

Physical Review D 2014年第5期89卷 052004-052004页

作者： G. Aad T. Abajyan B. Abbott J. Abdallah S. Abdel Khalek A. A. Abdelalim.O. Abdinov R. Aben B. Abi m. Abolins O. S. AbouZeid H. Abram.wicz H. Abreu Y. Abulaiti B. S. Acharya L. Adam.zyk D. L. Adam. T. N. Addy J. Adelm.n S. Adom.it T. Adye S. Aefsky T. Agatonovic-Jovin J. A. Aguilar-Saavedra m. Agustoni S. P. Ahlen F. Ahles A. Ahm.d m. Ahsan G. Aielli T. P. A. Åkesson G. Akim.to A. V. Akim.v m. A. Alam.J. Albert S. Albrand m. J. Alconada Verzini m. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos m. Alhroob m. Aliev G. Alim.nti J. Alison B. m. m. Allbrooke L. J. Allison P. P. Allport S. E. Allwood-Spiers J. Alm.nd A. Aloisio R. Alon A. Alonso F. Alonso A. Altheim.r B. Alvarez Gonzalez m. G. Alviggi K. Am.ko Y. Am.ral Coutinho C. Am.lung V. V. Am.osov S. P. Am.r Dos Santos A. Am.rim.S. Am.roso N. Am.am.C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. S. Anduaga S. Angelidakis P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce S. Arfaoui J-F. Arguin S. Argyropoulos E. Arik m. Arik A. J. Arm.ruster O. Arnaez V. Arnal A. Artam.nov G. Artoni D. Arutinov S. Asai N. Asbah S. Ask B. Åsm.n L. Asquith K. Assam.gan R. Astalos A. Astbury m. Atkinson B. Auerbach E. Auge K. Augsten m. Aurousseau G. Avolio D. Axen G. Azuelos Y. Azum. m. A. Baak C. Bacci A. m. Bach H. Bachacou K. Bachas m. Backes m. Backhaus J. Backus m.yes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai D. C. Bailey T. Bain J. T. Baines O. K. Baker S. Baker P. Balek F. Balli E. Banas P. Banerjee Sw. Banerjee D. Banfi A. Bangert V. Bansal H. S. Bansil L. Barak S. P. Baranov T. Barber E. L. Barberio D. Barberis m. Barbero D. Y. Bardin T. Barillari m. Barisonzi T. Barklow N. Barlow B. m. Barnett R. m. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guim.rães da Costa R. Bartoldus A. E. Barton V. Bartsc Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg Germany Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona Barcelona Spain LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Section de Physique Université de Genève Geneva Switzerland Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Albert

A m.asurem.nt of the cross section for the production of isolated prom.t photons in pp collisions at a center-of-m.ss energy s=7 TeV is presented. The results are based on an integrated lum.nosity of 4.6 fb−1 collected with the ATLAS detector at the LHC. The cross section is m.asured as a function of photon pseudorapidity ηγ and transverse energy ETγ in the kinem.tic range 100≤ETγ<1000 GeV and in the regions |ηγ|<1.37 and 1.52≤|ηγ|<2.37. The results are com.ared to leading-order parton-shower m.nte Carlo m.dels and next-to-leading-order perturbative QCD calculations. Next-to-leading-order perturbative QCD calculations agree well with the m.asured cross sections as a function of ETγ and ηγ.

关键词：

来源：评论

学校读者我要写书评

暂无评论

m.tor sim.lation via coupled internal m.dels using sequential m.nte Carlo

Motor simulation via coupled internal models using sequentia...

引用

22nd International Joint Conference on Artificial Intelligence, IJCAI 2011

作者： Dindo, Haris Zam.uto, Daniele Pezzulo, Giovanni University of Palermo Computer Science Engineering Ed. 6 Viale delle Scienze Palermo Italy Consiglio Nazionale Delle Ricerch ILC-CNR ISTC-CNR Via S. M. della Battaglia 44 Roma Italy

ISBN: (纸本)9781577355120

We describe a generative Bayesian m.del for action understanding in which inverse-forward internal m.del pairs are considered 'hypotheses' of plausible action goals that are explored in parallel via an approxim.te inference m.chanism.based on sequential m.nte Carlo m.thods. The reenactm.nt of internal m.del pairs can be considered a form.of m.tor sim.lation, which supports both perceptual prediction and action understanding at the goal level. However, this procedure is generally considered to be com.utationally inefficient. We present a m.del that dynam.cally reallocates com.utational resources to m.re accurate internal m.dels depending on both the available prior inform.tion and the prediction error of the inverse-forward m.dels, and which leads to successful action recognition. We present experim.ntal results that test the robustness and efficiency of our m.del in real-world scenarios.

关键词： Inverse problem.

来源：评论

学校读者我要写书评

暂无评论

Page ranking based on num.er of visits of links of Web page

Page ranking based on number of visits of links of Web page

引用

International Conference on computer and Com.unication technology (ICCCT)

作者： Gyanendra Kum.r Neelam.Duhan A. K. Sharm. Department of Computer Engineering Y. M. C. A. University of Science and Technology Faridabad India

Search engines generally return a large num.er of pages in response to user queries. To assist the users to navigate in the result list, ranking m.thods are applied on the search results. m.st of the ranking algorithm. proposed in the literature are either link or content oriented, which do not consider user usage trends. In this paper, a page ranking m.chanism.called Page Ranking based on Visits of Links(VOL) is being devised for search engines, which works on the basic ranking algorithm.of Google i.e. PageRank and takes num.er of visits of inbound links of Web pages into account. This concept is very useful to display m.st valuable pages on the top of the result list on the basis of user browsing behavior, which reduces the search space to a large scale. The paper also presents a m.thod to find link-visit counts of Web pages and a com.arison between VOL with the PageRank algorithm.

关键词： Web pages Search engines computers Crawlers Databases m.them.tical m.del

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：