Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV

The ATLAS collaboration

doi:10.1007/JHEP02(2017)071

Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV

The ATLAS collaboration

University Mohammed I
Aix-Marseille University - CNRS
University of Oklahoma
University of Texas at Arlington
Azerbaijan Academy of Sciences
Laboratoire de l'Accélérateur Linéaire
University of California, Santa Cruz
University of Sussex
Tel Aviv University
Technion - Israel Institute of Technology
University of Oregon
Stockholm University
Oskar Klein Centre
INFN- Sezione di Trieste
ICTP
King's College London
University of Tokyo
Univ of Mining and Metallurgy
Brookhaven National Laboratory
USA
Ludwig-Maximilians-Universität München
Rutherford Appleton Laboratory
University of Belgrade
Laboratório de Instrumentacão e Física Experimental de Partículas
University of Granada
Boston University
Joint Inst. for Nuclear Research
INFN Sezione di Roma Tor Vergata
University of Rome Tor Vergata
Lund University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
DIBINEM, Alma Mater Studiorum, University of Bologna
University of Victoria
University of Grenoble Alpes
Universidad Nacional de la Plata
European Organization for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
Czech Technical University in Prague
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
University of Salento
INFN Sezione di Milano
University of Chicago
Columbia University
University of Birmingham
INFN Sezione di Napoli
Università degli Studi di Napoli Federico II
Niels Bohr Institutet
New York University (NYU)
University of Washington
University of Glasgow
University of Valencia
Lawrence Berkeley National Laboratory
Federal University of Rio de Janeiro
Brandeis University
University of Michigan, Ann Arbor
University of Coimbra
Universidade de Lisboa
University of Sheffield
University of Geneva
University of Texas at Austin
Heidelberg University
University of Liverpool
University of Milan
National and Kapodistrian University of Athens
University of Amsterdam
Budker Institute of Nuclear Physics (SB RAS)
Novosibirsk State University
Dept. d'Estructura I Constituents De La Matèria and IFAE
SNS and INFN
University of Pisa
INFN, Laboratori Nazionali Di Frascati
National Research Nuclear University MEPhI
University of California, Irvine
Sezione INFN di Roma La Sapienza
High Energy Accelerator Research Organization (KEK)
Michigan State University
Duke University
Université de Montréal
Iowa University
Bogazici University
Stanford University
Queen Mary University of London
Albert-Ludwigs-Universität Freiburg
University of Cambridge
Rheinische Friedrich-Wilhelms-Universität Bonn
ITEP
University of Oxford
Johannes Gutenberg University
Deutsches Elektronen-Synchrotron (DESY)
Comenius University
University of Illinois
University of Siegen
TRIUMF
Commissariat A l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, IRFU
Universita La Sapienza
Institute of High Energy Physics Chinese Academy of Science
Yale University
Weizmann Institute of Science Israel
SUNY
University of Pennsylvania
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Wisconsin-Madison
University of Louisville
Bergische Universität Wuppertal
University of Melbourne
Sezione INFN di Genova
University of Genova
Max-Planck-Institut für Physik
University of Manchester
University of Science and Technology of China
Universidad Autónoma de Madrid
Lancaster University
Petersburg Nuclear Phys. Inst.
An-Najah National University
University of Toronto
California State University Fresno
Ohio State University
Université Pierre et Marie Curie
Tufts University
University of Bern
University of Fribourg
University of Warwick
Bahcesehir University
University of Gaziantep
University College London
Carleton University
University of Massachusetts Amherst
Hassan II University of Casablanca
Uppsala University
Université de Savoie
University of London
Charles University in Prague
University of Pittsburgh
Humboldt-Universität zu Berlin
Georg-August-Universität Göttingen
University of Sydney
Argonne National Laboratory
Pontificia Universidad Católica de Chile
Moscow State University
Institute for High Energy Physics (IHEP)
Chinese University of Hong Kong
University of Hong Kong
Hong Kong University of Science and Technology
Universidad de Buenos Aires
University at Albany
University Paris-Sud
Tokyo Metropolitan University
University of Edinburgh
Universidad Técnica Federico Santa María
Institute of Experimental Physics Slovak Academy of Sciences
University of Bergen
Simon Fraser University
University of Oslo
pro3dure medical GmbH
Universite della Calabria
Ankara University School of Medicine
Indiana University Bloomington
Shanghai Jiao Tong University
Oklahoma State University
Radboud University Nijmegen
Universitat Autònoma de Barcelona (UAB)
University of Cape Town
LIACC - Artificial Intelligence and Computer Science Laboratory
Sez. di Roma Tre
Universidade Federal de Juiz de Fora
Istanbul Bilgi University
The Broad Institute of MIT and Harvard
Università degli Studi di Udine
Tomsk State University
Iowa State University
Nanjing University
Tsinghua University
Kobe University
University Mohammed V in Rabat
University of Arizona
Institute of Physics of the Czech Academy of Sciences
McGill University
Palacky University
Univ. of Ljubljana
University of Johannesburg
Università di Napoli Parthenope
University of British Columbia
Institute of Particle Physics
University of Alberta
Tbilisi State University
Federal University of São João Del Rei
University of São Paulo
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
University of Pavia
Shandong University
Justus-Liebig-Universität Gießen
Technische Universität Dresden
Faculté Des Sciences-Semlalia
St. Petersburg Technical University
Nagasaki Institute of Applied Science
Aristotle University of Thessaloniki
Centro de Física Nuclear Universidade de Lisboa
University of New Mexico
Centre for High Performance Computing, Cape Town
West University in Timisoara
Louisiana Tech University
Technology Department
Medizinische Universität Innsbruck
Southern Methodist University
Tsukuba University
A.I. Alikhanyan National Science Laboratory (YerPhi)
Osaka University
Natl. Academy of Sciences of Belarus
Shinshu University
Tokyo Institute of Technology
University of Würzburg
University of the Witwatersrand, Johannesburg
Nagoya University
Academia Sinica Taipei
Institute for Nuclear Problems of the Belarus State University
National Tsing Hua University
Waseda University
Trento Institute for Fundamental Physics and Applications
University of Trento
University of Texas at Dallas
University of Adelaide
Ilia State University (ISU)
Center for Autonomous Systems
Kyushu University
Georgian Technical University
Ochanomizu University
Manhattan College
Istanbul Aydin University (IAU)
Kyoto University
Universidad Antonio Nariño
York University
California State University, Sacramento
Moscow Institute of Physics and Technology
Hiroshima Institute of Technology
Okayama University
PT Government Associated Laboratory, University of Minho
Jagiellonian University
Eotvos Lorand University (ELTE)
Scuola Internazionale Superiore di Studi Avanzati
National Institute for R&D of Isotopic and Molecular Technologies
University of South Carolina
Sun Yat-Sen University
Bulgarian Academy of Sciences
TOBB University of Economics and Technology
Kyoto University of Education
Wigner Research Centre for Physics
Transilvania University of Brasov
Giresun University (Giresun)
Flensburg University of Applied Sciences
University of Malaya

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb⁻¹ from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.]

Original language	English
Article number	71
Journal	Journal of High Energy Physics
Volume	2017
Issue number	2
DOIs	https://doi.org/10.1007/JHEP02(2017)071
State	Published - 1 Feb 2017
Externally published	Yes

Keywords

Hadron-Hadron scattering (experiments)

Access to Document

10.1007/JHEP02(2017)071

Cite this

@article{d156c7449bc84120bf1cfe071cc3d786,

title = "Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV",

abstract = "Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb−1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.]",

keywords = "Hadron-Hadron scattering (experiments)",

author = "\{The ATLAS collaboration\} and M. Aaboud and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and B. Abeloos and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and S. Adachi and L. Adamczyk and Adams, \{D. L.\} and J. Adelman and S. Adomeit and T. Adye and Affolder, \{A. A.\} and T. Agatonovic-Jovin and Aguilar-Saavedra, \{J. A.\} and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and B. Ali and M. Aliev and G. Alimonti and J. Alison and Alkire, \{S. P.\} and Allbrooke, \{B. M.M.\} and Allen, \{B. W.\} and Allport, \{P. P.\} and A. Aloisio and A. Alonso and F. Alonso and L. Heinrich",

note = "Publisher Copyright: {\textcopyright} 2017, The Author(s).",

year = "2017",

month = feb,

day = "1",

doi = "10.1007/JHEP02(2017)071",

language = "English",

volume = "2017",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "2",

}

TY - JOUR

T1 - Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Abeloos, B.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Ali, B.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alison, J.

AU - Alkire, S. P.

AU - Allbrooke, B. M.M.

AU - Allen, B. W.

AU - Allport, P. P.

AU - Aloisio, A.

AU - Alonso, A.

AU - Alonso, F.

AU - Heinrich, L.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb−1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.]

AB - Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb−1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.]

KW - Hadron-Hadron scattering (experiments)

UR - https://www.scopus.com/pages/publications/85013481717

U2 - 10.1007/JHEP02(2017)071

DO - 10.1007/JHEP02(2017)071

M3 - Article

AN - SCOPUS:85013481717

SN - 1126-6708

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 2

M1 - 71

ER -

Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this