Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at √ s = 7 TeV with the ATLAS detector

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doi:10.1007/JHEP12(2010)060

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Multitudinario:3179 "Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at √ s = 7 TeV with the ATLAS detector" (2010) Journal of High Energy Physics. 2010(12)

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Abstract:

First measurements of the W → ℓν and Z/γ * → ℓℓ (ℓ = e, μ) production cross sections in proton-proton collisions at √ s = 7TeV are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W → ℓν and 179 Z/γ * → ℓℓ candidate events selected from a data set corresponding to an integrated luminosity of approximately 320 nb -1 . The measured total W and Z/ γ * -boson production cross sections times the respective leptonic branching ratios for the combined electron and muon channels are σ tot W · BR(W → ℓν) = 9.96 ± 0.23(stat) ± 0.50(syst) ± 1.10(lumi) nb and σ tot Z/γ* · BR(Z/ γ * → ℓℓ) = 0.82 ± 0.06 (stat) ± 0.05 (syst) ± 0.09 (lumi) nb (within the invariant mass window 66 < m ℓℓ < 116 GeV). The W/Z cross-section ratio is measured to be 11.7 ± 0.9(stat) ± 0.4(syst). In addition, measurements of the W + and W - production cross sections and of the lepton charge asymmetry are reported. Theoretical predictions based on NNLO QCD calculations are found to agree with the measurements.

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Documento:	Artículo
Título:	Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at √ s = 7 TeV with the ATLAS detector
Autor:	Multitudinario:3179
Filiación:	University at Albany, 1400 Washington Ave, Albany, NY 12222, United States University of Alberta, Department of Physics, Centre for Particle Physics, Edmonton, AB T6G 2G7, Canada Ankara University, Faculty of Sciences, Department of Physics, TR 061000 Tandogan, Ankara, Turkey Dumlupinar University, Faculty of Arts and Sciences, Department of Physics, Kutahya, Turkey Gazi University, Faculty of Arts and Sciences, Department of Physics, 06500, Teknikokullar, Ankara, Turkey TOBB University of Economics and Technology, Faculty of Arts and Sciences, Division of Physics, 06560, Sogutozu, Ankara, Turkey Turkish Atomic Energy Authority, 06530, Lodumlu, Ankara, Turkey LAPP, Université de Savoie, CNRS/IN2P3, Annecy-le-Vieux, France Argonne National Laboratory, High Energy Physics Division, 9700 S. Cass Avenue, Argonne IL 60439, United States University of Arizona, Department of Physics, Tucson, AZ 85721, United States University of Texas at Arlington, Department of Physics, Box 19059, Arlington, TX 76019, United States University of Athens, Nuclear and Particle Physics, Department of Physics, Panepistimiopouli, Zografou, GR 15771 Athens, Greece National Technical University of Athens, Physics Department, 9-Iroon Polytechniou, GR 15780 Zografou, Greece Institute of Physics, Azerbaijan Academy of Sciences, H. Javid Avenue 33, AZ 143 Baku, Azerbaijan Institut de Física d'Altes Energies, IFAE, Edifici Cn, Universitat Autònoma de Barcelona, ES - 08193 Bellaterra (Barcelona), Spain University of Belgrade, Institute of Physics, P.O. Box 57, 11001 Belgrade, Serbia Vinca Institute of Nuclear Sciences, M. Petrovica Alasa 12-14, 11000 Belgrade, Serbia University of Bergen, Department for Physics and Technology, Allegaten 55, NO - 5007 Bergen, Norway Lawrence Berkeley National Laboratory, University of California, Physics Division, MS50B-6227, 1 Cyclotron Road, Berkeley, CA 94720, United States Humboldt University, Institute of Physics, Berlin, Newtonstr. 15, D-12489 Berlin, Germany University of Bern, Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, Sidlerstrasse 5, CH - 3012 Bern, Switzerland University of Birmingham, School of Physics and Astronomy, Edgbaston, Birmingham B15 2TT, United Kingdom Bogazici University, Faculty of Sciences, Department of Physics, TR - 80815 Bebek-Istanbul, Turkey Dogus University, Faculty of Arts and Sciences, Department of Physics, 34722, Kadikoy, Istanbul, Turkey Gaziantep University, Faculty of Engineering, Department of Physics Engineering, 27310, Sehitkamil, Gaziantep, Turkey INFN Sezione di Bologna, viale C. Berti Pichat, 6/2, IT - 40127 Bologna, Italy Dipartimento di Fisica, Università di Bologna, viale C. Berti Pichat, 6/2, IT - 40127 Bologna, Italy University of Bonn, Physikalisches Institut, Nussallee 12, D - 53115 Bonn, Germany Boston University, Department of Physics, 590 Commonwealth Avenue, Boston, MA 02215, United States Brandeis University, Department of Physics, MS057, 415 South Street, Waltham, MA 02454, United States Universidade Federal do Rio De Janeiro, COPPE/EE/IF, Caixa Postal 68528, Ilha do Fundao, BR - 21945-970 Rio de Janeiro, Brazil Universidade de Sao Paulo, Instituto de Fisica, R.do Matao Trav. R.187, Sao Paulo - SP, 05508 - 900, Brazil Brookhaven National Laboratory, Physics Department, Bldg. 510A, Upton, NY 11973, United States National Institute of Physics and Nuclear Engineering, Str. Atomistilor 407, Bucharest-Magurele, R-077125, Romania University Politehnica Bucharest, Rectorat - AN 001, 313 Splaiul Independentei, 060042 Bucuresti, Romania Universidad de Buenos Aires, FCEyN, Dto. Fisica, Pab I - C. Universitaria, 1428 Buenos Aires, Argentina University of Cambridge, Cavendish Laboratory, J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom Carleton University, Department of Physics, 1125 Colonel By Drive, Ottawa ON K1S 5B6, Canada CERN, CH - 1211 Geneva 23, Switzerland University of Chicago, Enrico Fermi Institute, 5640 S. Ellis Avenue, Chicago, IL 60637, United States Pontificia Universidad Católica de Chile, Facultad de Fisica, Departamento de Fisica, Avda. Vicuna Mackenna 4860, San Joaquin, Santiago, Chile Universidad Técnica Federico Santa María, Departamento de Física, Avda. Espãna 1680, Casilla 110-V, Valparaíso, Chile Institute of High Energy Physics, Chinese Academy of Sciences, 19 Yuquan Road, Shijing Shan District, CN - Beijing 100049, China University of Science and Technology of China (USTC), Department of Modern Physics, Hefei, CN - Anhui 230026, China Nanjing University, Department of Physics, Nanjing, CN - Jiangsu 210093, China Shandong University, High Energy Physics Group, Jinan, CN - Shandong 250100, China Laboratoire de Physique Corpusculaire, Clermont Université, Université Blaise Pascal, FR - 63177 Aubiere Cedex, France Columbia University, Nevis Laboratory, 136 So. Broadway, Irvington, NY 10533, United States University of Copenhagen, Niels Bohr Institute, Blegdamsvej 17, DK - 2100 Kobenhavn 0, Denmark INFN Gruppo Collegato di Cosenza, IT-87036 Arcavacata di Rende, Italy Dipartimento di Fisica, Università della Calabria, IT-87036 Arcavacata di Rende, Italy Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, al. Mickiewicza 30, PL-30059 Cracow, Poland Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, ul. 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Cheremushkinskaya ul. 25, RU 117 218 Moscow, Russian Federation Moscow Engineering and Physics Institute (MEPhI), Kashirskoe Shosse 31, RU - 115409 Moscow, Russian Federation Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, 1(2), Leninskie gory, GSP-1, Moscow 119991, Russian Federation Ludwig-Maximilians-Universität München, Fakultät für Physik, Am Coulombwall 1, DE - 85748 Garching, Germany Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, Föhringer Ring 6, 80805 München, Germany Nagasaki Institute of Applied Science, 536 Aba-machi, JP Nagasaki 851-0193, Japan Nagoya University, Graduate School of Science, Furo-Cho, Chikusa-ku, Nagoya, 464-8602, Japan INFN Sezione di Napoli, via Cinthia, IT - 80126 Napoli, Italy Università di Napoli, Dipartimento di Scienze Fisiche, Complesso Universitario di Monte Sant'Angelo, via Cinthia, IT - 80126 Napoli, Italy University of New Mexico, Department of Physics and Astronomy, MSC07 4220, Albuquerque, NM 87131, United States Radboud University Nijmegen/NIKHEF, Department of Experimental High Energy Physics, Heyendaalseweg 135, NL-6525 AJ, Nijmegen, Netherlands Nikhef National Institute for Subatomic Physics, University of Amsterdam, Science Park 105, 1098 XG Amsterdam, Netherlands Department of Physics, Northern Illinois University, LaTourette Hall Normal Road, DeKalb, IL 60115, United States Budker Institute of Nuclear Physics (BINP), RU - Novosibirsk 630 090, Russian Federation New York University, Department of Physics, 4 Washington Place, New York NY 10003, United States Ohio State University, 191 West Woodruff Ave, Columbus, OH 43210-1117, United States Okayama University, Faculty of Science, Tsushimanaka 3-1-1, Okayama 700-8530, Japan University of Oklahoma, Homer L. 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Mohamed VI, 60000, Oujda, Morocco Université Mohammed V, Faculté des Sciences, 4 Avenue Ibn Battouta, 10000 Rabat, Morocco CEA, DSM/IRFU, Centre d'Etudes de Saclay, FR - 91191 Gif-sur-Yvette, France University of California Santa Cruz, Santa Cruz Institute for Particle Physics (SCIPP), Santa Cruz, CA 95064, United States University of Washington, Seattle, Department of Physics, Box 351560, Seattle, WA 98195-1560, United States University of Sheffield, Department of Physics and Astronomy, Hounsfield Road, Sheffield S3 7RH, United Kingdom Shinshu University, Department of Physics, Faculty of Science, 3-1-1 Asahi, Matsumoto-shi, JP - Nagano 390-8621, Japan Universität Siegen, Fachbereich Physik, D 57068 Siegen, Germany Simon Fraser University, Department of Physics, 8888 University Drive, CA - Burnaby, BC V5A 1S6, Canada SLAC National Accelerator Laboratory, Stanford, CA 94309, United States Comenius University, Faculty of Mathematics, Physics and Informatics, Mlynska dolina F2, SK - 84248 Bratislava, Slovakia Institute of Experimental Physics of the Slovak Academy of Sciences, Dept. of Subnuclear Physics, Watsonova 47, SK - 04353 Kosice, Slovakia School of Physics, University of the Witwatersrand, Private Bag 3, Wits 2050, Johannesburg, South Africa Stockholm University, Department of Physics, SE - 106 91 Stockholm, Sweden Oskar Klein Centre, AlbaNova, SE - 106 91 Stockholm, Sweden Royal Institute of Technology (KTH), Physics Department, SE - 106 91 Stockholm, Sweden Stony Brook University, Department of Physics and Astronomy, Nicolls Road, Stony Brook, NY 11794-3800, United States University of Sussex, Department of Physics and Astronomy, Pevensey 2 Building, Falmer, Brighton BN1 9QH, United Kingdom University of Sydney, School of Physics, AU - Sydney NSW 2006, Australia Insitute of Physics, Academia Sinica, TW - Taipei 11529, Taiwan Technion, Israel Inst. of Technology, Department of Physics, Technion City, IL - Haifa 32000, Israel Tel Aviv University, Raymond and Beverly Sackler School of Physics and Astronomy, Ramat Aviv, IL - Tel Aviv 69978, Israel Aristotle University of Thessaloniki, Faculty of Science, Department of Physics, GR - 54124, Thessaloniki, Greece University of Tokyo, International Center for Elementary Particle Physics, Department of Physics, 7-3-1 Hongo, Bunkyo-ku, JP - Tokyo 113-0033, Japan Tokyo Metropolitan University, Graduate School of Science and Technology, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan Tokyo Institute of Technology, 2-12-1-H-34 O-Okayama, Meguro, Tokyo 152-8551, Japan University of Toronto, Department of Physics, 60 Saint George Street, Toronto M5S 1A7, ON, Canada TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada York University, Department of Physics and Astronomy, 4700 Keele St., Toronto, ON, M3J 1P3, Canada University of Tsukuba, Institute of Pure and Applied Sciences, 1-1-1 Tennoudai, Tsukuba-shi, JP - Ibaraki 305-8571, Japan Tufts University, Science and Technology Center, 4 Colby Street, Medford, MA 02155, United States Universidad Antonio Narino, Centro de Investigaciones, Cra 3 Este No. 47A-15, Bogota, Colombia University of California, Department of Physics and Astronomy, Irvine, CA 92697-4575, United States INFN Gruppo Collegato di Udine, Strada Costiera 11, IT-34014, Trieste, Italy ICTP, Strada Costiera 11, IT-34014, Trieste, Italy Università di Udine, Dipartimento di Fisica, via delle Scienze 208, IT - 33100 Udine, Italy University of Illinois, Department of Physics, 1110 West Green Street, Urbana, IL 61801, United States University of Uppsala, Department of Physics and Astronomy, P.O. Box 516, SE - 751 20 Uppsala, Sweden Instituto de Física Corpuscular (IFIC), Centro Mixto UVEG-CSIC, Apdo. 22085, ES-46071 Valencia, Spain Dept. Física At. Mol. y Nuclear, Univ. of Valencia, 08193 Bellaterra, Spain Dept. Ing. Electrónica, Univ. of Valencia, 08193 Bellaterra, Spain Inst. de Microelectrónica de Barcelona (IMB-CNM-CSIC), 08193 Bellaterra, Spain University of British Columbia, Department of Physics, 6224 Agricultural Road, CA - Vancouver, BC V6T 1Z1, Canada University of Victoria, Department of Physics and Astronomy, P.O. Box 3055, Victoria BC, V8W 3P6, Canada Waseda University, WISE, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan Weizmann Institute of Science, Department of Particle Physics, P.O. 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Acton 38, IT - 80133 Napoli, Italy Louisiana Tech. University, 305 Wisteria Street, Ruston, LA 71272, United States Universidade de Lisboa, Portugal California State University, Fresno, United States Istituto Universitario di Studi Superiori IUSS, Pavia, Italy Centro de Fisica Nuclear, Universidade de Lisboa, Portugal California Institute of Technology, Pasadena, United States Louisiana Tech. University, Ruston, United States University of Montreal, Montreal, Canada Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany Chonnam National University, Chonnam 500-757, South Korea Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany School of Physics and Engineering, Sun Yat-Sen University, China School of Physics, Shandong University, Jinan, China Departamento de Fisica, Universidade de Minho, Portugal KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary University of South Carolina, Dept. of Physics and Astronomy, 700 S. Main St, Columbia, SC 29208, United States Institute of Physics, Jagiellonian University, Cracow, Poland School of Physics and Engineering, Sun Yat-Sen University, Taiwan LHCb 31.01.2010, Taiwan Naruto University of Education, Tokushima, Japan LPNHE, Paris, France
Palabras clave:	Hadron-Hadron scattering
Año:	2010
Volumen:	2010
Número:	12
DOI:	http://dx.doi.org/10.1007/JHEP12(2010)060
Título revista:	Journal of High Energy Physics
Título revista abreviado:	J. High Energy Phys.
ISSN:	11266708
Registro:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2010_n12_p_Multitudinario

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Citas:

---------- APA ----------

(2010) . Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at √ s = 7 TeV with the ATLAS detector. Journal of High Energy Physics, 2010(12).
http://dx.doi.org/10.1007/JHEP12(2010)060

---------- CHICAGO ----------

Multitudinario:3179. "Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at √ s = 7 TeV with the ATLAS detector" . Journal of High Energy Physics 2010, no. 12 (2010).
http://dx.doi.org/10.1007/JHEP12(2010)060

---------- MLA ----------

Multitudinario:3179. "Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at √ s = 7 TeV with the ATLAS detector" . Journal of High Energy Physics, vol. 2010, no. 12, 2010.
http://dx.doi.org/10.1007/JHEP12(2010)060

---------- VANCOUVER ----------

Multitudinario:3179. Measurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at √ s = 7 TeV with the ATLAS detector. J. High Energy Phys. 2010;2010(12).
http://dx.doi.org/10.1007/JHEP12(2010)060