检索结果-内蒙古大学图书馆

On minimizing the maximum sensor movement for barrier coverage of a line segment

8th International Conference on Ad-Hoc, Mobile and Wireless Networks, ADHOC-NOW 2009

作者： Czyzowicz, J. Kranakis, E. Krizanc, D. Lambadaris, I. Narayanan, L. Opatrny, J. stacho, L. Urrutia, J. Yazdani, M. Département d'Informatique Université du Québec en Outaouais Gatineau QC J8X 3X7 Canada School of Computer Science Carleton University Ottawa ON K1S 5B6 Canada Department of Mathematics and Computer Science Wesleyan University Middletown CT 06459 United States Department of Systems and Computer Engineering Carleton University Ottawa ON K1S 5B6 Canada Department of Computer Science Concordia University Montréal QC H3G 1M8 Canada Department of Mathematics Simon Fraser University 8888 University Drive Burnaby BC V5A 1S6 Canada Instituto de Matemáticas Universidad Nacional Autónoma de México Ciudad Universitaria Coyoacán 04510 México D.F. Mexico

ISBN: (纸本)3642043828

We consider n mobile sensors located on a line containing a barrier represented by a finite line segment. sensors form a wireless sensor network and are able to move within the line. An intruder traversing the barrier can be detected only when it is within the sensing range of at least one sensor. The sensor network establishes barrier coverage of the segment if no intruder can penetrate the barrier from any direction in the plane without being detected. starting from arbitrary initial positions of sensors on the line we are interested in finding final positions of sensors that establish barrier coverage and minimize the maximum distance traversed by any sensor. We distinguish several variants of the problem, based on (a) whether or not the sensors have identical ranges, (b) whether or not complete coverage is possible and (c) in the case when complete coverage is impossible, whether or not the maximal coverage is required to be contiguous. For the case of n sensors with identical range, when complete coverage is impossible, we give linear time optimal algorithms that achieve maximal coverage, both for the contiguous and non-contiguous case. When complete coverage is possible, we give an O(n 2) algorithm for an optimal solution, a linear time approximation scheme with approximation factor 2, and a (1+∈Ε) PTAs. When the sensors have unequal ranges we show that a variation of the problem is NP-complete and identify some instances which can be solved with our algorithms for sensors with unequal ranges. © 2009 springer berlin Heidelberg.

关键词： Wireless sensor networks

来源：评论

学校读者我要写书评

暂无评论

Multi-Innovation stochastic Gradient Algorithm for Output Error systems based on the Auxiliary Model

Multi-Innovation Stochastic Gradient Algorithm for Output Er...

引用

2009 American Control Conference (ACC 2009)

作者： Dongqing Wang Feng Ding Peter X. Liu College of Automation Engineering Qingdao University (Jiangnan University) Qingdao P.R. China 266071 Control Science and Engineering Research Center at the Jiangnan University Wuxi P.R. China 214122 Department of Systems and Computer Engineering Carleton University Ottawa Canada K1S 5B6

ISBN: (纸本)9781424445233

This paper combines the multi-innovation theory with the auxiliary model identification idea to present the auxiliary model based multi-innovation stochastic gradient algorithm by expanding the scalar innovation to an innovation vector and introducing the innovation length. Convergence analysis in the stochastic framework indicates that the parameter estimation error consistently converges to zero under certain excitation condition. Finally, we illustrate and test the proposed algorithm with an example.

关键词： stochastic systems Convergence Educational institutions stochastic processes Technological innovation Parameter estimation Least squares methods Covariance matrix Computational complexity White noise

来源：评论

学校读者我要写书评

暂无评论

Measurement of the W+W− Cross section in s=7 Tev pp Collisions with ATLAs

引用

Physical Review Letters 2011年第4期107卷 041802-041802页

作者： G. Aad b. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov b. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi b. s. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz s. Adomeit P. Adragna T. Adye s. Aefsky J. A. Aguilar-saavedra M. Aharrouche s. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. v. Akimov A. Akiyama M. s. Alam M. A. Alam s. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung v. v. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos T. Andeen C. F. Anders K. J. Anderson A. Andreazza v. Andrei M-L. Andrieux X. s. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli s. Antonelli A. Antonov J. Antos F. Anulli s. Aoun L. Aperio bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault s. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov s. Asai R. Asfandiyarov s. Ask b. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian b. Aubert b. Auerbach E. Auge K. Augsten M. Aurousseau N. Austin R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. baak G. baccaglioni C. bacci A. M. bach H. bachacou K. bachas G. bachy M. backes M. backhaus E. badescu P. bagnaia s. bahinipati Y. bai D. C. bailey T. bain J. T. baines O. K. baker M. D. baker s. baker F. baltasar Dos santos Pedrosa E. banas P. banerjee sw. banerjee D. banfi A. bangert v. bansal H. s. bansil L. barak s. P. baranov A. barashkou A. barbaro Galtieri 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 A. J. barr F. barreiro J. barreiro Guimarães da Costa P. barrillon R. bartoldus A. E. barton D. bartsch v. bartsch R. L. bates L. batkova J. R. batley A. battaglia M. battist Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Universitat Autònoma de Barcelona and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Univ. Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy 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 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Depart

This Letter presents a measurement of the W+W− production cross section in s=7 Tev pp collisions by the ATLAs experiment, using 34 pb−1 of integrated luminosity produced by the Large Hadron Collider at CERN. selecting events with two isolated leptons, each either an electron or a muon, 8 candidate events are observed with an expected background of 1.7±0.6 events. The measured cross section is 41−16+20(stat)±5(syst)±1(lumi) pb, which is consistent with the standard model prediction of 44±3 pb calculated at next-to-leading order in QCD.

关键词： Elementary particles

来源：评论

学校读者我要写书评

暂无评论

search for Dilepton Resonances in pp Collisions at s=7 Tev with the ATLAs Detector

引用

Physical Review Letters 2011年第27期107卷 272002-272002页

作者： G. Aad b. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov b. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi b. s. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz s. Adomeit P. Adragna T. Adye s. Aefsky J. A. Aguilar-saavedra M. Aharrouche s. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. v. Akimov A. Akiyama M. s. Alam M. A. Alam J. Albert s. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung v. v. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos L. s. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza v. Andrei M-L. Andrieux X. s. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli s. Aoun L. Aperio bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault s. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov s. Asai R. Asfandiyarov s. Ask b. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian b. Aubert E. Auge K. Augsten M. Aurousseau N. Austin G. Avolio R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. baak G. baccaglioni C. bacci A. M. bach H. bachacou K. bachas G. bachy M. backes M. backhaus E. badescu P. bagnaia s. bahinipati Y. bai D. C. bailey T. bain J. T. baines O. K. baker M. D. baker s. baker E. banas P. banerjee sw. banerjee D. banfi A. bangert v. bansal H. s. bansil L. barak s. P. baranov A. barashkou A. barbaro Galtieri 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 Guimarães da Costa P. barrillon R. bartoldus A. E. barton D. bartsch v. bartsch R. L. bates L. batkova J. R. batley A. battaglia M. ba Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. 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 and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Univ. Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Udine Italy ICTP Trieste Italy 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 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Roma Italy Dipartimento di Fisica

This Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAs experiment in pp collisions at s=7 Tev at the Large Hadron Collider and correspond to a total integrated luminosity of 1.08 (1.21) fb−1 in the e+e− (μ+μ−) channel. No statistically significant excess above the standard model expectation is observed and upper limits are set at the 95% C.L. on the cross section times branching fraction of Z′ resonances and Randall-sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower mass limit of 1.83 Tev on the sequential standard model Z′ boson is set. A Randall-sundrum graviton with coupling k/M¯Pl=0.1 is excluded at 95% C.L. for masses below 1.63 Tev.

关键词： DILEPTON production LARGE Hadron Collider (France & switzerland) REsONANCE HADRON colliders sTANDARD model (Nuclear physics) Z bosons

来源：评论

学校读者我要写书评

暂无评论

search for the Higgs boson in the H→WW→lνjj Decay Channel in pp Collisions at s=7 Tev with the ATLAs Detector

引用

Physical Review Letters 2011年第23期107卷 231801-231801页

作者： G. Aad b. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov b. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi b. s. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz s. Adomeit P. Adragna T. Adye s. Aefsky J. A. Aguilar-saavedra M. Aharrouche s. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. v. Akimov A. Akiyama M. s. Alam M. A. Alam J. Albert s. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung v. v. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos L. s. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza v. Andrei M-L. Andrieux X. s. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli s. Aoun L. Aperio bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault s. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov s. Asai R. Asfandiyarov s. Ask b. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian b. Aubert E. Auge K. Augsten M. Aurousseau N. Austin G. Avolio R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. baak G. baccaglioni C. bacci A. M. bach H. bachacou K. bachas G. bachy M. backes M. backhaus E. badescu P. bagnaia s. bahinipati Y. bai D. C. bailey T. bain J. T. baines O. K. baker M. D. baker s. baker E. banas P. banerjee sw. banerjee D. banfi A. bangert v. bansal H. s. bansil L. barak s. P. baranov A. barashkou A. barbaro Galtieri 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 Guimarães da Costa P. barrillon R. bartoldus A. E. barton D. bartsch v. bartsch R. L. bates L. batkova J. R. batley A. battaglia M. ba Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i. Br. 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 and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Univ. Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy 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 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata R

A search for a Higgs boson has been performed in the H→WW→ℓνjj channel in 1.04 fb−1 of pp collision data at s=7 Tev recorded with the ATLAs detector at the Large Hadron Collider. No significant excess of events is observed over the expected background and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 240 Gevv. The best sensitivity is reached for mH=400 Gev, where the 95% confidence level upper bound on the cross section for H→WW production is 3.1 pb, or 2.7 times the standard model prediction.

关键词： HIGGs bosons bOsONs LARGE Hadron Collider (France & switzerland) sTANDARD model (Nuclear physics)

来源：评论

学校读者我要写书评

暂无评论

search for a Heavy Particle Decaying into an Electron and a Muon with the ATLAs Detector in s=7 Tev pp collisions at the LHC

引用

Physical Review Letters 2011年第25期106卷 251801-251801页

This Letter presents the first search for a heavy particle decaying into an e±μ∓ final state in s=7 Tev pp collisions at the LHC. The data were recorded by the ATLAs detector during 2010 and correspond to a total integrated luminosity of 35 pb−1. No excess above the standard model background expectation is observed. Exclusions at 95% confidence level are placed on two representative models. In an R-parity violating supersymmetric model, tau sneutrinos with a mass below 0.75 Tev are excluded, assuming all R-parity violating couplings are zero except λ311′=0.11 and λ312=0.07. In a lepton flavor violating model, a Z′-like vector boson with masses of 0.70–1.00 Tev and corresponding cross sections times branching ratios of 0.175–0.183 pb is excluded. These results extend to higher mass R-parity violating sneutrinos and lepton flavor violating Z’s than previous constraints from the Tevatron.

关键词： Tellurium compounds

来源：评论

学校读者我要写书评

暂无评论

search for a standard Model Higgs boson in the H→ZZ→ℓ+ℓ−νν¯ Decay Channel with the ATLAs Detector

引用

Physical Review Letters 2011年第22期107卷 221802-221802页

作者： G. Aad b. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov b. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi b. s. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz s. Adomeit P. Adragna T. Adye s. Aefsky J. A. Aguilar-saavedra M. Aharrouche s. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. v. Akimov A. Akiyama M. s. Alam M. A. Alam J. Albert s. Albrand M. Aleksa I. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung v. v. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos L. s. Ancu N. Andari T. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza v. Andrei M-L. Andrieux X. s. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli s. Aoun L. Aperio bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault s. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov s. Asai R. Asfandiyarov s. Ask b. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian b. Aubert E. Auge K. Augsten M. Aurousseau N. Austin G. Avolio R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. baak G. baccaglioni C. bacci A. M. bach H. bachacou K. bachas G. bachy M. backes M. backhaus E. badescu P. bagnaia s. bahinipati Y. bai D. C. bailey T. bain J. T. baines O. K. baker M. D. baker s. baker E. banas P. banerjee sw. banerjee D. banfi A. bangert v. bansal H. s. bansil L. barak s. P. baranov A. barashkou A. barbaro Galtieri 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 Guimarães da Costa P. barrillon R. bartoldus A. E. barton D. bartsch v. bartsch R. L. bates L. batkova J. R. batley A. battaglia M. ba Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i. Br. 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 and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Univ. Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy 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 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università La Sapienza Rom

A search for a heavy standard model Higgs boson decaying via H→ZZ→ℓ+ℓ−νν¯, where ℓ=e, μ, is presented. It is based on proton-proton collision data at s=7 Tev, collected by the ATLAs experiment at the LHC in the first half of 2011 and corresponding to an integrated luminosity of 1.04 fb−1. The data are compared to the expected standard model backgrounds. The data and the background expectations are found to be in agreement and upper limits are placed on the Higgs boson production cross section over the entire mass window considered; in particular, the production of a standard model Higgs boson is excluded in the region 340v at the 95% confidence level.

关键词： HIGGs bosons RADIOACTIvE decay PROTON-proton interactions sTANDARD model (Nuclear physics) NUCLEAR models

来源：评论

学校读者我要写书评

暂无评论

Measurement of Dijet Azimuthal Decorrelations in pp Collisions at s=7 Tev

引用

Physical Review Letters 2011年第17期106卷 172002-172002页

作者： G. Aad b. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov b. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi b. s. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz s. Adomeit P. Adragna T. Adye s. Aefsky J. A. Aguilar-saavedra M. Aharrouche s. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. v. Akimov M. s. Alam M. A. Alam s. Albrand M. Aleksa I. N. Aleksandrov M. Aleppo F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung v. v. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos T. Andeen C. F. Anders K. J. Anderson A. Andreazza v. Andrei M-L. Andrieux X. s. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli s. Antonelli A. Antonov J. Antos F. Anulli s. Aoun L. Aperio bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault s. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov s. Asai R. Asfandiyarov s. Ask b. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian b. Aubert b. Auerbach E. Auge K. Augsten M. Aurousseau N. Austin R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. baak G. baccaglioni C. bacci A. M. bach H. bachacou K. bachas G. bachy M. backes M. backhaus E. badescu P. bagnaia s. bahinipati Y. bai D. C. bailey T. bain J. T. baines O. K. baker M. D. baker s. baker F. baltasar Dos santos Pedrosa E. banas P. banerjee sw. banerjee D. banfi A. bangert v. bansal H. s. bansil L. barak s. P. baranov A. barashkou A. barbaro Galtieri 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 A. J. barr F. barreiro J. barreiro Guimarães da Costa P. barrillon R. bartoldus A. E. barton D. bartsch v. bartsch R. L. bates L. batkova J. R. batley A. battaglia M. battisti Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Universitat Autònoma de Barcelona and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Univ. Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Trieste Italy ICTP Trieste Italy 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 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Roma Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma

Azimuthal decorrelations between the two central jets with the largest transverse momenta are sensitive to the dynamics of events with multiple jets. We present a measurement of the normalized differential cross section based on the full data set (∫Ldt=36 pb−1) acquired by the ATLAs detector during the 2010 s=7 Tev proton-proton run of the LHC. The measured distributions include jets with transverse momenta up to 1.3 Tev, probing perturbative QCD in a high-energy regime.

关键词： Atomic physics

来源：评论

学校读者我要写书评

暂无评论

search for supersymmetry Using Final states with One Lepton, Jets, and Missing Transverse Momentum with the ATLAs Detector in s=7 Tev pp Collisions

引用

Physical Review Letters 2011年第13期106卷 131802-131802页

作者： G. Aad b. Abbott J. Abdallah A. A. Abdelalim A. Abdesselam O. Abdinov b. Abi M. Abolins H. Abramowicz H. Abreu E. Acerbi b. s. Acharya D. L. Adams T. N. Addy J. Adelman M. Aderholz s. Adomeit P. Adragna T. Adye s. Aefsky J. A. Aguilar-saavedra M. Aharrouche s. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli T. Akdogan T. P. A. Åkesson G. Akimoto A. v. Akimov M. s. Alam M. A. Alam s. Albrand M. Aleksa I. N. Aleksandrov M. Aleppo F. Alessandria C. Alexa G. Alexander G. Alexandre T. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison M. Aliyev P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso M. G. Alviggi K. Amako P. Amaral C. Amelung v. v. Ammosov A. Amorim G. Amorós N. Amram C. Anastopoulos T. Andeen C. F. Anders K. J. Anderson A. Andreazza v. Andrei M-L. Andrieux X. s. Anduaga A. Angerami F. Anghinolfi N. Anjos A. Annovi A. Antonaki M. Antonelli s. Antonelli A. Antonov J. Antos F. Anulli s. Aoun L. Aperio bella R. Apolle G. Arabidze I. Aracena Y. Arai A. T. H. Arce J. P. Archambault s. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez C. Arnault A. Artamonov G. Artoni D. Arutinov s. Asai R. Asfandiyarov s. Ask b. Åsman L. Asquith K. Assamagan A. Astbury A. Astvatsatourov G. Atoian b. Aubert b. Auerbach E. Auge K. Augsten M. Aurousseau N. Austin R. Avramidou D. Axen C. Ay G. Azuelos Y. Azuma M. A. baak G. baccaglioni C. bacci A. M. bach H. bachacou K. bachas G. bachy M. backes M. backhaus E. badescu P. bagnaia s. bahinipati Y. bai D. C. bailey T. bain J. T. baines O. K. baker M. D. baker s. baker F. baltasar Dos santos Pedrosa E. banas P. banerjee sw. banerjee D. banfi A. bangert v. bansal H. s. bansil L. barak s. P. baranov A. barashkou A. barbaro Galtieri 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 A. J. barr F. barreiro J. barreiro Guimarães da Costa P. barrillon R. bartoldus A. E. barton D. bartsch v. bartsch R. L. bates L. batkova J. R. batley A. battaglia M. battisti Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg i.Br. Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Universitat Autònoma de Barcelona and ICREA Barcelona Spain Section de Physique Université de Genève Geneva Switzerland Department of Physics Oxford University Oxford United Kingdom Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel LAL Université Paris-Sud and CNRS/IN2P3 Orsay France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy 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 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) München Germany Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Portugal Institut für Physik Universität Mainz Mainz Germany Department of Physics Boston University Boston Massachusetts USA Department of Physics and Astronomy Stony Brook University Stony Brook New York USA Physics Department University of Texas at Dallas Richardson Texas USA INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy

This Letter presents the first search for supersymmetry in final states containing one isolated electron or muon, jets, and missing transverse momentum from s=7 Tev proton-proton collisions at the LHC. The data were recorded by the ATLAs experiment during 2010 and correspond to a total integrated luminosity of 35 pb−1. No excess above the standard model background expectation is observed. Limits are set on the parameters of the minimal supergravity framework, extending previous limits. Within this framework, for A0=0 Gev, tan β=3, and μ>0 and for equal squark and gluino masses, gluino masses below 700 Gev are excluded at 95% confidence level.

关键词： supersymmetry

来源：评论

学校读者我要写书评

暂无评论

search for pair production of first or second generation leptoquarks in proton-proton collisions at s=7 Tev using the ATLAs detector at the LHC

引用

Physical Review D 2011年第11期83卷 112006-112006页

This paper describes searches for the pair production of first or second generation scalar leptoquarks using 35 pb−1 of proton-proton collision data recorded by the ATLAs detector at s=7 Tev. Leptoquarks are searched in events with two oppositely-charged muons or electrons and at least two jets, and in events with one muon or electron, missing transverse momentum and at least two jets. After event selection, the observed yields are consistent with the predicted backgrounds. Leptoquark production is excluded at the 95% CL for masses MLQ<376 (319) Gev and MLQ<422 (362) Gev for first and second generation scalar leptoquarks, respectively, when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5).

关键词： PAIR production QUARKs PROTON-proton interactions DETECTORs NUCLEAR reactions

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：