Search for W′ → tb in proton-proton collisions at s=8\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s}=8 $$\end{document} TeV

被引：0
作者：
V. Khachatryan
A. M. Sirunyan
A. Tumasyan
W. Adam
E. Asilar
T. Bergauer
J. Brandstetter
E. Brondolin
M. Dragicevic
J. Erö
M. Flechl
M. Friedl
R. Frühwirth
V. M. Ghete
C. Hartl
N. Hörmann
J. Hrubec
M. Jeitler
V. Knünz
A. König
M. Krammer
I. Krätschmer
D. Liko
I. Mikulec
D. Rabady
B. Rahbaran
H. Rohringer
J. Schieck
R. Schöfbeck
J. Strauss
W. Treberer-Treberspurg
W. Waltenberger
C.-E. Wulz
V. Mossolov
N. Shumeiko
J. Suarez Gonzalez
S. Alderweireldt
T. Cornelis
E. A. De Wolf
X. Janssen
A. Knutsson
J. Lauwers
S. Luyckx
S. Ochesanu
R. Rougny
M. Van De Klundert
H. Van Haevermaet
P. Van Mechelen
N. Van Remortel
A. Van Spilbeeck
机构：
[1] Yerevan Physics Institute,State Key Laboratory of Nuclear Physics and Technology
[2] Institut für Hochenergiephysik der OeAW,Department of Physics
[3] National Centre for Particle and High Energy Physics,National Centre for Particle Physics
[4] Universiteit Antwerpen,National Centre for Physics
[5] Vrije Universiteit Brussel,Institute of Experimental Physics, Faculty of Physics
[6] Université Libre de Bruxelles,Skobeltsyn Institute of Nuclear Physics
[7] Ghent University,Institute for Particle Physics
[8] Université Catholique de Louvain,Plasma Physics Research Center, Science and Research Branch
[9] Université de Mons,Faculty of Physics
[10] Centro Brasileiro de Pesquisas Fisicas,Facoltà Ingegneria
[11] Universidade do Estado do Rio de Janeiro,School of Physics and Astronomy
[12] Universidade Estadual Paulista,undefined
[13] Universidade Federal do ABC,undefined
[14] Institute for Nuclear Research and Nuclear Energy,undefined
[15] University of Sofia,undefined
[16] Institute of High Energy Physics,undefined
[17] Peking University,undefined
[18] Universidad de Los Andes,undefined
[19] University of Split,undefined
[20] Faculty of Electrical Engineering,undefined
[21] Mechanical Engineering and Naval Architecture,undefined
[22] University of Split,undefined
[23] Faculty of Science,undefined
[24] Institute Rudjer Boskovic,undefined
[25] University of Cyprus,undefined
[26] Charles University,undefined
[27] Academy of Scientific Research and Technology of the Arab Republic of Egypt,undefined
[28] Egyptian Network of High Energy Physics,undefined
[29] National Institute of Chemical Physics and Biophysics,undefined
[30] University of Helsinki,undefined
[31] Helsinki Institute of Physics,undefined
[32] Lappeenranta University of Technology,undefined
[33] DSM/IRFU,undefined
[34] CEA/Saclay,undefined
[35] Laboratoire Leprince-Ringuet,undefined
[36] Ecole Polytechnique,undefined
[37] IN2P3-CNRS,undefined
[38] Institut Pluridisciplinaire Hubert Curien,undefined
[39] Université de Strasbourg,undefined
[40] Université de Haute Alsace Mulhouse,undefined
[41] CNRS/IN2P3,undefined
[42] Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules,undefined
[43] CNRS/IN2P3,undefined
[44] Université de Lyon,undefined
[45] Université Claude Bernard Lyon 1,undefined
[46] CNRS-IN2P3,undefined
[47] Institut de Physique Nucléaire de Lyon,undefined
[48] Georgian Technical University,undefined
[49] Tbilisi State University,undefined
[50] RWTH Aachen University,undefined
来源：
Journal of High Energy Physics | / 2016卷 / 2期
关键词：
Jet substructure; Hadron-Hadron scattering; Beyond Standard Model;
D O I：
10.1007/JHEP02(2016)122
中图分类号：
学科分类号：
摘要：
A search is performed for the production of a massive W′ boson decaying to a top and a bottom quark. The data analysed correspond to an integrated luminosity of 19.7 fb−1 collected with the CMS detector at the LHC in proton-proton collisions at s=8\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s}=8 $$\end{document} TeV. The hadronic decay products of the top quark with high Lorentz boost from the W′ boson decay are detected as a single top flavoured jet. The use of jet substructure algorithms allows the top quark jet to be distinguished from standard model QCD background. Limits on the production cross section of a right-handed W′ boson are obtained, together with constraints on the left-handed and right-handed couplings of the W′ boson to quarks. The production of a right-handed W′ boson with a mass below 2.02 TeV decaying to a hadronic final state is excluded at 95% confidence level. This mass limit increases to 2.15 TeV when both hadronic and leptonic decays are considered, and is the most stringent lower mass limit to date in the tb decay mode. [graphic not available: see fulltext]
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