Measurement of the production cross section of a W boson in association with two b jets in pp collisions at √s=8TeV

被引：0

作者：

Khachatryan, V. ^{[2
]}

Sirunyan, A. M. ^{[2
]}

Tumasyan, A. ^{[2
]}

Adam, W. ^{[3
]}

Asilar, E. ^{[3
]}

Bergauer, T. ^{[3
]}

Brandstetter, J. ^{[3
]}

Brondolin, E. ^{[3
]}

Dragicevic, M. ^{[3
]}

Eroe, J. ^{[3
]}

Flechl, M. ^{[3
]}

Friedl, M. ^{[3
]}

Fruehwirth, R. ^{[3
,198
]}

Ghete, V. M. ^{[3
]}

Hartl, C. ^{[3
]}

Hoermann, N. ^{[3
]}

Hrubec, J. ^{[3
]}

Jeitler, M. ^{[3
,198
]}

Koenig, A. ^{[3
]}

Kraetschmer, I. ^{[3
]}

Liko, D. ^{[3
]}

Matsushita, T. ^{[3
]}

Mikulec, I. ^{[3
]}

Rabady, D. ^{[3
]}

Rad, N. ^{[3
]}

Rahbaran, B. ^{[3
]}

Rohringer, H. ^{[3
]}

Schieck, J. ^{[3
,198
]}

Strauss, J. ^{[3
]}

Treberer-Treberspurg, W. ^{[3
]}

Waltenberger, W. ^{[3
]}

Wulz, C. -E. ^{[3
,198
]}

Mossolov, V. ^{[4
]}

Shumeiko, N. ^{[4
]}

Gonzalez, J. Suarez ^{[4
]}

Alderweireldt, S. ^{[5
]}

De Wolf, E. A. ^{[5
]}

Janssen, X. ^{[5
]}

Lauwers, J. ^{[5
]}

Van de Klundert, M. ^{[5
]}

Van Haevermaet, H. ^{[5
]}

Van Mechelen, P. ^{[5
]}

Van Remortel, N. ^{[5
]}

Van Spilbeeck, A. ^{[5
]}

Abu Zeid, S. ^{[6
]}

Blekman, F. ^{[6
]}

D'Hondt, J. ^{[6
]}

Daci, N. ^{[6
]}

De Bruyn, I. ^{[6
]}

Deroover, K. ^{[6
]}

机构：

[1] CERN, CH-1211 Geneva 23, Switzerland

[2] Yerevan Phys Inst, Yerevan, Armenia

[3] OeAW, Inst Hochenergiephys, Vienna, Austria

[4] Natl Ctr Particle & High Energy Phys, Minsk, BELARUS

[5] Univ Antwerp, Antwerp, Belgium

[6] Vrije Univ Brussel, Brussels, Belgium

[7] Univ Libre Bruxelles, Brussels, Belgium

[8] Univ Ghent, Ghent, Belgium

[9] Catholic Univ Louvain, Louvain La Neuve, Belgium

[10] Univ Mons, Mons, Belgium

[11] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[12] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[13] Univ Estadual Paulista, Sao Paulo, Brazil

[14] Univ Fed ABC, Sao Paulo, Brazil

[15] Inst Nucl Energy Res, Sofia, Bulgaria

[16] Univ Sofia, Sofia, Bulgaria

[17] Beihang Univ, Beijing, Peoples R China

[18] Inst High Energy Phys, Beijing, Peoples R China

[19] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[20] Univ Los Andes, Bogota, Colombia

[21] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[22] Univ Split, Fac Sci, Split, Croatia

[23] Inst Rudjer Boskovic, Zagreb, Croatia

[24] Univ Cyprus, Nicosia, Cyprus

[25] Charles Univ Prague, Prague, Czech Republic

[26] Univ San Francisco Quito, Quito, Ecuador

[27] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt

[28] NICPB, Tallinn, Estonia

[29] Univ Helsinki, Dept Phys, Helsinki, Finland

[30] Helsinki Inst Phys, Helsinki, Finland

[31] Lappeenranta Univ Technol, Lappeenranta, Finland

[32] Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France

[33] IN2P3 CNRS, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France

[34] Univ Haute Alsace Mulhouse, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, CNRS IN2P3, Strasbourg, France

[35] CNRS IN2P3, Inst Natl Phys Nucl & Phys Particules, Ctr Calcul, Villeurbanne, France

[36] Univ Claude Bernard Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France

[37] Georgian Tech Univ, Tbilisi, Georgia

[38] Tbilisi State Univ, Tbilisi, Georgia

[39] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[40] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[41] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany

[42] DESY, Hamburg, Germany

[43] Univ Hamburg, Hamburg, Germany

[44] Inst Expt Kernphys, Karlsruhe, Germany

[45] NCSR Demokritos, INPP, Aghia Paraskevi, Greece

[46] Natl & Kapodistrian Univ Athens, Athens, Greece

[47] Univ Ioannina, Ioannina, Greece

[48] Eotvos Lorand Univ, MTA ELTE Lendulet CMS Particle & Nucl Phys Grp, Budapest, Hungary

[49] Wigner Res Ctr Phys, Budapest, Hungary

[50] Inst Nucl Res ATOMKI, Debrecen, Hungary

来源：

EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 02期

基金：

美国国家科学基金会; 欧洲研究理事会; 巴西圣保罗研究基金会; 芬兰科学院;

关键词：

D O I：

10.1140/epjc/s10052-016-4573-z

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The production cross section of a W boson in association with two b jets is measured using a sample of proton-proton collisions at root s = 8 TeV collected by the CMS experiment at the CERN LHC. The data sample corresponds to an integrated luminosity of 19.8 fb(-1). The W bosons are reconstructed via their leptonic decays, W -> l(v) where l = mu or e. The fiducial region studied contains exactly one lepton with transverse momentum pT(l) > 30 GeV and pseudorapidity |eta(l)| < 2.1, with exactly two b jets with pT > 25 GeV and |eta(l)| < 2.4 and no other jets with pT > 25 GeV and |eta(l)| < 4.7. The cross section is measured to be sigma(pp -> W(lv)+b<(b)over bar>) = 0.64 +/- 0.03 (stat) +/- 0.10 (syst) +/- 0.06 (theo) +/- 0.02 (lumi) pb, in agreement with standard model predictions.

引用

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