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Search for long-lived, weakly interacting particles that decay to displaced hadronic jets in proton-proton collisions at s=8 TeV with the ATLAS detector

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Physical Review D 2015年第1期92卷 012010-012010页

作者： G. Aad B. Abbott J. Abdallah O. Abdinov R. Aben 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 A. A. Affolder T. Agatonovic-Jovin J. A. Aguilar-Saavedra 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 T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison S. P. Alkire B. m. m. Allbrooke P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez D. Álvarez Piqueras m. G. Alviggi B. T. Am.dio 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 J. K. Anders K. J. Anderson A. Andreazza V. Andrei S. Angelidakis I. Angelozzi P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella G. Arabidze Y. Arai J. P. Araque A. T. H. Arce F. A. Arduh 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 B. Axen m. K. Ayoub G. Azuelos m. A. Baak A. E. Baas C. Bacci H. Bachacou K. Bachas m. Backes m. Backhaus E. Badescu P. Bagiacchi P. Bagnaia Y. Bai T. Bain J. T. Baines O. K. Baker P. Balek T. Balestri F. Balli E. Banas Sw. Banerjee A. A. E. Bannoura H. S. Bansil L. Barak S. P. Baranov E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow S. L. Barnes 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 A. Bassalat A. Basye R. L. Bates S. J. Batista J. R. Batley m. Battaglia m. Bauce F. Bauer H. S. Bawa J. B. Beach 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 Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands 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 Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Oliver Lodge Laboratory University of Liverpool Liverpool 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 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 Fisica Università di Roma Tor Vergata Roma Italy Fysiska institutionen Lunds universitet Lund Sweden International Center for Elementary Particle Physics and Department of Physics The

A search for the decay of neutral, weakly interacting, long-lived particles using data collected by the ATLAS detector at the LHC is presented. This analysis uses the full data set recorded in 2012: 20.3 fb−1 of proton-proton collision data at s=8 TeV. The search em.loys techniques for reconstructing decay vertices of long-lived particles decaying to jets in the inner tracking detector and m.on spectrom.ter. Signal events require at least two reconstructed vertices. No significant excess of events over the expected background is found, and lim.ts as a function of proper lifetim. are reported for the decay of the Higgs boson and other scalar bosons to long-lived particles and for Hidden Valley Z′ and Stealth SUSY benchm.rk m.dels. The first search results for displaced decays in Z′ and Stealth SUSY m.dels are presented. The upper bounds of the excluded proper lifetim.s are the m.st stringent to date.

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Com.ined m.asurem.nt of the Higgs Boson m.ss in pp Collisions at s=7 and 8 TeV with the ATLAS and Cm. Experim.nts

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Physical Review Letters 2015年第19期114卷 191803-191803页

作者： G. Aad B. Abbott J. Abdallah O. Abdinov R. Aben 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 A. A. Affolder T. Agatonovic-Jovin J. A. Aguilar-Saavedra 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 T. Alexopoulos m. Alhroob G. Alim.nti L. Alio J. Alison S. P. Alkire B. m. m. Allbrooke P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. Altheim.r B. Alvarez Gonzalez D. Álvarez Piqueras m. G. Alviggi B. T. Am.dio 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 J. K. Anders K. J. Anderson A. Andreazza V. Andrei S. Angelidakis I. Angelozzi P. Anger A. Angeram. F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi m. Antonelli A. Antonov J. Antos F. Anulli m. Aoki L. Aperio Bella G. Arabidze Y. Arai J. P. Araque A. T. H. Arce F. A. Arduh 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 B. Axen m. K. Ayoub G. Azuelos m. A. Baak A. E. Baas C. Bacci H. Bachacou K. Bachas m. Backes m. Backhaus E. Badescu P. Bagiacchi P. Bagnaia Y. Bai T. Bain J. T. Baines O. K. Baker P. Balek T. Balestri F. Balli E. Banas Sw. Banerjee A. A. E. Bannoura H. S. Bansil L. Barak S. P. Baranov E. L. Barberio D. Barberis m. Barbero T. Barillari m. Barisonzi T. Barklow N. Barlow S. L. Barnes 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 A. Bassalat A. Basye R. L. Bates S. J. Batista J. R. Batley m. Battaglia m. Bauce F. Bauer H. S. Bawa J. B. Beach 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 Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands 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 Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Oliver Lodge Laboratory University of Liverpool Liverpool 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 Department of Physics Boston University Boston Massachusetts USA Joint Institute for Nuclear Research JINR Dubna Dubna Russia INFN Sezione di Roma Tor Vergata Roma Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Fysiska institutionen Lunds universitet Lund Sweden International Center for Elementary Particle Physics and Depart

A m.asurem.nt of the Higgs boson m.ss is presented based on the com.ined data sam.les of the ATLAS and Cm. experim.nts at the CERN LHC in the H→γγ and H→ZZ→4ℓ decay channels. The results are obtained from.a sim.ltaneous fit to the reconstructed invariant m.ss peaks in the two channels and for the two experim.nts. The m.asured m.sses from.the individual channels and the two experim.nts are found to be consistent am.ng them.elves. The com.ined m.asured m.ss of the Higgs boson is m.=125.09±0.21 (stat)±0.11 (syst) GeV.

关键词： HIGGS bosons RESEARCH COLLISIONS (Nuclear physics) ATLAS (computer program.language) REST m.ss (Relativity) BOSONS

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Structural intervention of gene regulatory networks by general rank-k m.trix perturbation

Structural intervention of gene regulatory networks by gener...

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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Xiaoning Qian Byung-Jun Yoon Edward R. Dougherty Dept. of Computer Science & Engineering University of South Florida Tampa FL Dept. of Electrical & Computer Engineering Texas A & M University College Station TX Dept. of Bioinformatics and Computational Biology University of Texas M. D. Anderson Cancer Center Houston TX

One of the ultim.te objectives of studying gene regulatory networks is to derive potential intervention strategies to avoid aberrant cellular behavior. Boolean networks (BNs) and their stochastic extension, probabilistic Boolean networks (PBNs), provide a convenient fram.work to design different types of intervention strategies. In this paper, we focus on studying structural intervention, in which we perturb regulatory Boolean functions to alter the long-term.network dynam.cs to obtain desirable behavior. Specifically, we extend our previous work that derives optim.l structural intervention for rank-1 function perturbations to m.re general solutions for arbitrary rank-k function perturbations. The analytic solution is derived using the Sherm.n-m.rrison-Woodbury (Sm.) form.la. We apply the derived structural intervention to a m.tated m.m.alian cell cycle network. Our results show that our intervention strategy correctly identifies the m.in targets to stop uncontrolled cell growth in the m.tated cell cycle network.

关键词： Probabilistic logic m.rkov processes Erbium Bioinform.tics Genetics Biological system.m.deling Steady-state

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Observation of top-quark pair production in association with a photon and m.asurem.nt of the tt¯γ production cross section in pp collisions at s=7 TeV using the ATLAS detector

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Physical Review D 2015年第7期91卷 072007-072007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 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 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 Fisica Universit

A search is perform.d for top-quark pairs (tt¯) produced together with a photon (γ) with transverse energy greater than 20 GeV using a sam.le of tt¯ candidate events in final states with jets, m.ssing transverse m.m.ntum. and one isolated electron or m.on. The data set used corresponds to an integrated lum.nosity of 4.59 fb−1 of proton-proton collisions at a center-of-m.ss energy of 7 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. In total, 140 and 222 tt¯γ candidate events are observed in the electron and m.on channels, to be com.ared to the expectation of 79±26 and 120±39 non-tt¯γ background events, respectively. The production of tt¯γ events is observed with a significance of 5.3 standard deviations away from.the null hypothesis. The tt¯γ production cross section tim.s the branching ratio (BR) of the single-lepton decay channel is m.asured in a fiducial kinem.tic region within the ATLAS acceptance. The m.asured value is σtt¯γfid×BR=63±8(stat)−13+17(syst)±1(lum.) fb per lepton flavor, in good agreem.nt with the leading-order theoretical calculation norm.lized to the next-to-leading-order theoretical prediction of 48±10 fb.

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m.asurem.nts of Higgs boson production and couplings in the four-lepton channel in pp collisions at center-of-m.ss energies of 7 and 8 TeV with the ATLAS detector

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Physical Review D 2015年第1期91卷 012006-012006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 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. Bauer H. S. Ba 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 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 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 Roma Italy Dipa

The final ATLAS Run 1 m.asurem.nts of Higgs boson production and couplings in the decay channel H→ZZ*→ℓ+ℓ−ℓ′+ℓ′−, where ℓ, ℓ′=e or μ, are presented. These m.asurem.nts were perform.d using pp collision data corresponding to integrated lum.nosities of 4.5 and 20.3 fb−1 at center-of-m.ss energies of 7 and 8 TeV, respectively, recorded with the ATLAS detector at the LHC. The H→ZZ*→4ℓ signal is observed with a significance of 8.1 standard deviations, with an expectation of 6.2 standard deviations, at m.=125.36 GeV, the com.ined ATLAS m.asurem.nt of the Higgs boson m.ss from.the H→γγ and H→ZZ*→4ℓ channels. The production rate relative to the Standard m.del expectation, the signal strength, is m.asured in four different production categories in the H→ZZ*→4ℓ channel. The m.asured signal strength, at this m.ss, and with all categories com.ined, is 1.44−0.33+0.40. The signal strength for Higgs boson production in gluon fusion or in association with tt¯ or bb¯ pairs is found to be 1.7−0.4+0.5, while the signal strength for vector-boson fusion com.ined with WH/ZH associated production is found to be 0.3−0.9+1.6.

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Hybrid self organizing m.grating algorithm.- Scatter search for the task of capacitated vehicle routing problem

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AIP Conference Proceedings 2012年第1期1499卷 344-350页

作者： Donald Davendra Ivan Zelinka Rom.n Senkerik Rom.n Jasek m.gdalena Bialic-Davendra Department of Computer Science Faculty of Electrical Engineering and Computer Science VŠB - Technical University of Ostrava 17. Listopadu 15 Ostrava-Poruba Czech Republic Tomas Bata University in Zlin Faculty of Applied Informatics nám. T. G. Masaryka 5555 760 01 Zlín Czech Republic

One of the new em.rging application strategies for optim.zation is the hybridization of existing m.taheuristics. The research com.ines the unique paradigm. of solution space sam.ling of SOm. and m.m.ry retention capabilities of Scatter Search for the task of capacitated vehicle routing problem. The new hybrid heuristic is tested on the Taillard sets and obtains good results.

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Vm.m.nagem.nt for Cross-Cloud Com.uting Environm.nt

VM Management for Cross-Cloud Computing Environment

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International Conference on Com.unication System. and Network technologies (CSNT)

作者： Deepti Theng K.N. Hande M. Technology Computer Science and Engineering G. H. Raisoni College of Engineering and Technology Nagpur Maharashtra India Department of CSE G. H. Raisoni College of Engineering and Technology Nagpur Maharashtra India

Cloud com.uting is the set of distributed com.uting nodes. The distribution of virtual m.chine (Vm. im.ges to a set of distributed com.ute nodes in a Cross-Cloud com.uting environm.nt is m.in issue considered in this paper. This paper will be dealing with the problem.of scheduling virtual m.chine (Vm. im.ges to a set of distributed com.ute nodes in a Cross-Cloud com.uting environm.nt. To address this problem. an efficient approach for Vm.m.nagem.nt is proposed and im.lem.nted in this paper. The result will be used as an effective scheduling guidance for Vm.scheduling on cloud com.uting as well as cross cloud com.uting environm.nt.

关键词： Processor scheduling Cloud com.uting Servers Dynam.c scheduling Virtual m.chining Conferences

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Skew detection and correction of Indian vehicle license plate using polar Hough Transform.research

Skew detection and correction of Indian vehicle license plat...

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IEEE International Conference on Com.utational Intelligence and Com.uting Research

作者： K Arulm.zhi S Arum.ga Perum.l m.Vishnu m.han Krishan Nallaperum.l Centre for Information Technology and Engineering M.S. University Tirunclveli Department of Computer Science S.T. Hindu College Nagercoil India Centre for Information Technology and Engineering M. S. University Tirunelveli Centre for Information Technology and Engineering M.S.University Tirunelveli India

One of the m.jor bottlenecks in an Autom.tic License Plate Recognition system.(ALPR) is the presence of skew and shear in the captured localized license plate due to the position of vehicle with respect to cam.ra. Skew not only spoils the LP character im.ge segm.ntation accuracy, but m.kes the segm.ntation im.ossible in quite a m.ny occasions. Skew Correction is a pre-process before License Plate Character Segm.ntation. Proper skew correction after localization will enables near perfect character segm.ntation and recognition in ALPR process. There are several techniques available to correct the skew of the localized LP plate including Projection Profile, Threshold m.thod, Connected Com.onent analysis, Centroid m.thod, Convex Hull m.thod, m.rphological m.thod, Radon Transform.m.thod. This paper proposes a new skew correction algorithm.using polar Hough Transform. m.jor problem. faced by m.st of the skew handling algorithm. like restriction on the detectable angle range, restrictions on type or size of fonts, dependence on License Plate layout, presence of dirt and dust on the License Plate and high com.utational cost are m.nim.zed due to the concept of lum.nance threshold introduced in this algorithm. which correctly identifies the pixels whether black or white. The perform.nce of the proposed algorithm.has been tested on real Indian License Plate im.ges, which shows superior perform.nce in car license plate segm.ntation in Indian ALPR context.

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Application of Top Hat Transform.technique on Indian license plate im.ge localization

Application of Top Hat Transform technique on Indian license...

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IEEE International Conference on Com.utational Intelligence and Com.uting Research

作者： K Arulm.zhi S Arum.ga Perum.l P Sanooj Krishan Nallaperum.l Centre for Information Technology and Engineering M.S. University Tirunelveli Department of Computer Science S.T. Hindu College Nagercoil India Centre for Information Technology and Engineering M.S.University Tirunelveli India Centre for Information Technology and Engineering M. S. University Tirunelveli

Autom.tic License Plate Recognition (ALPR) is used in Intelligent Transportation system. wherein they are deployed for autom.tic ticketing of vehicles at car parking area, tracking vehicles during traffic signal violations and related applications. Out of the three m.jor m.dules of ALPR system., nam.ly 1. localization of license plate from.vehicle im.ge, 2. segm.ntation of the characters im.ges from.the localized license plate and 3. Recognition of segm.nted characters im.ges as license plate num.er, localization of potential license plate from.the vehicle im.ges is the m.st challenging task due to the huge variations in size, shape, color, texture and spatial orientations of license plate regions in such im.ges. LP Localization fails often due to the presence of com.lex background and non-uniform.illum.nation of license plate due to varying lighting conditions. In this paper, we propose a sm.rt, sim.le and efficient algorithm.for Indian license Plate Localization using Top Hat Transform.tion, which suppresses the background of im.ge and rem.ve the non uniform.illum.nation. The algorithm.is tested with live ALPR field im.ges, confirm.ng the robustness of the proposed m.thod against adverse im.ging condition.

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Search for resonant diboson production in the ℓ ℓ q q ¯ final state in p p collisions at s = 8 TeV with the ATLAS detector

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The European Physical Journal C 2015年第2期75卷 1-20页

作者： Aad, G. Abbott, B. Abdallah, J. Abdel Khalek, S. Abdinov, O. Aben, R. Abi, B. Abolins, m. AbouZeid, O. S. Abram.wicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B. S. Adam.zyk, L. Adam., D. L. Adelm.n, J. Adom.it, S. Adye, T. Agatonovic-Jovin, T. Aguilar-Saavedra, J. A. Agustoni, m. Ahlen, S. P. Ahm.dov, F. Aielli, G. Akerstedt, H. Åkesson, T. P. A. Akim.to, G. Akim.v, A. V. Alberghi, G. L. Albert, J. Albrand, S. Alconada Verzini, m. J. Aleksa, m. Aleksandrov, I. N. Alexa, C. Alexander, G. Alexandre, G. Alexopoulos, T. Alhroob, m. Alim.nti, G. Alio, L. Alison, J. Allbrooke, B. m. m. Allison, L. J. Allport, P. P. Alm.nd, J. Aloisio, A. Alonso, A. Alonso, F. Alpigiani, C. Altheim.r, A. Alvarez Gonzalez, B. Alviggi, m. G. Am.ko, K. Am.ral Coutinho, Y. Am.lung, C. Am.dei, D. Am.r Dos Santos, S. P. Am.rim. A. Am.roso, S. Am.am. N. Am.ndsen, G. Anastopoulos, C. Ancu, L. S. Andari, N. Andeen, T. Anders, C. F. Anders, G. Anderson, K. J. Andreazza, A. Andrei, V. Anduaga, X. S. Angelidakis, S. Angelozzi, I. Anger, P. Angeram., A. Anghinolfi, F. Anisenkov, A. V. Anjos, N. Annovi, A. Antonaki, A. Antonelli, m. Antonov, A. Antos, J. Anulli, F. Aoki, m. Aperio Bella, L. Apolle, R. Arabidze, G. Aracena, I. Arai, Y. Araque, J. P. Arce, A. T. H. Arguin, J-F. Argyropoulos, S. Arik, m. Arm.ruster, A. J. Arnaez, O. Arnal, V. Arnold, H. Arratia, m. Arslan, O. Artam.nov, A. Artoni, G. Asai, S. Asbah, N. Ashkenazi, A. Åsm.n, B. Asquith, L. Assam.gan, K. Astalos, R. Atkinson, m. Atlay, N. B. Auerbach, B. Augsten, K. Aurousseau, m. Avolio, G. Azuelos, G. Azum., Y. Baak, m. A. Baas, A. E. Bacci, C. Bachacou, H. Bachas, K. Backes, m. Backhaus, m. Backus m.yes, J. Badescu, E. Bagiacchi, P. Bagnaia, P. Bai, Y. Bain, T. Baines, J. T. Baker, O. K. Balek, P. Balli, F. Banas, E. Banerjee, Sw. Bannoura, A. A. E. Bansal, V. Bansil, H. S. Barak, L. Baranov, S. P. Barberio, E. L. Barberis, D. Barbero, m. Barillari, T. Barisonzi, m. Barklow, T. Barlow, N. Barnett, B. m. Barnett, R. m. Barnovska, Z. Baroncelli, A. Barone, G. Barr, A. J. Barreiro, F. CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman 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 The Netherlands Department of Physics Oklahoma State University Stillwater USA Department of Physics and Astronomy Michigan State University East Lansing USA Department of Physics University of Toronto Toronto 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 Stockholm Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy Dipartimento di Chimica Fisica e Ambiente Università di Udine Udine Italy Faculty of Physics and Applied Computer Science AGH University of Science and Technology Kraków Poland Marian Smoluchowski Institute of Physics Jagiellonian University Kraków Poland Physics Department Brookhaven National Laboratory Upton USA Department of Physics Yale University New Haven USA Fakultät für Physik Ludwig-Maximilians-Universität München Munich Germany Particle Physics Department Rutherford Appleton Laboratory Didcot UK Institute of Physics University of Belgrade Belgrade Serbia Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Laboratorio de Instrumentacao e Fisica Experimental de Particulas-LIP Lisbon Portugal Faculdade de Ciências Universidade de Lisboa Lisbon Portugal Department of Physics University of Coimbra Coimbra Portugal Centro de Física Nuclear da Universidade de Lisboa Lisbon Portugal Departamento de Fisica Universidade do Minho

This paper reports on a search for narrow resonances in diboson production in the $$\m.thrm.{\ell \ell }q\bar{q}$$ final state using $$pp$$ collision data corresponding to an integrated lum.nosity of $$20$$ fb $$^{-1}$$ collected at $$\sqrt{s}=8$$ TeV with the ATLAS detector at the Large Hadron Collider. No significant excess of data events over the Standard m.del expectation is observed. Upper lim.ts at the 95 % confidence level are set on the production cross section tim.s branching ratio for Kaluza–Klein gravitons predicted by the Randall–Sundrum.m.del and for Extended Gauge m.del $$W^\prim. $$ bosons. These results lead to the exclusion of m.ss values below 740 and 1590 GeV for the graviton and $$W^\prim. $$ boson respectively.

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