Determination of the top-quark pole mass and strong coupling constant from the tt¯ production cross section in pp collisions at s=7 TeV

CMS Collaboration

doi:10.1016/j.physletb.2013.12.009

Determination of the top-quark pole mass and strong coupling constant from the tt¯ production cross section in pp collisions at s=7 TeV

CMS Collaboration

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
German Electron Synchrotron
Vrije Universiteit Brussel
Université libre de Bruxelles
Ghent University
Université catholique de Louvain
Université de Strasbourg
National Institute of Chemical Physics and Biophysics, Tallinn
Universite de Mons
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Federal do ABC
Universidade Estadual Paulista Júlio de Mesquita Filho
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
CAS - Institute of High Energy Physics
Peking University
Universidad de los Andes Colombia
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
Academy of Scientific Research and Technology
Suez Canal University
Zewail City of Science and Technology
Cairo University
Al-Fayoum University
The British University in Egypt
Ain Shams University
University of Helsinki
Helsinki Institute of Physics
Lappeenranta-Lahti University of Technology
Commissariat à l’énergie atomique et aux énergies alternatives
Institut Polytechnique de Paris
National Centre for Nuclear Research
Université de Haute-Alsace
CNRS/IN2P3
Universite Claude Bernard Lyon 1
Ivane Javakhishvili Tbilisi State University
Joint Institute for Nuclear Research
RWTH Aachen University
Brandenburg University of Technology
University of Hamburg
University of Kansas
Karlsruhe Institute of Technology
Lomonosov Moscow State University
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute for Nuclear Research
University of Debrecen
National Institute of Science Education and Research
Tata Institute of Fundamental Research
Panjab University
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Saha Institute of Nuclear Physics
Homi Bhabha National Institute
King Abdulaziz University
Visva-Bharati University
University of Ruhuna
Institute for Research for Fundamental Sciences
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Sharif University of Technology
Islamic Azad University
University College Dublin
National Institute for Nuclear Physics
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Benemerita Universidad Autonoma de Puebla
Universidad Autonoma de San Luis Potosi
The University of Auckland
University of Canterbury
Quaid-I-Azam University
University of Warsaw
Laboratório de Instrumentação e Física Experimental de Partículas
RAS - Saint Petersburg Nuclear Physics Institute
RAS - Institute for Nuclear Research
Alikhanov Institute for Theoretical and Experimental Physics
RAS - P.N. Lebedev Physics Institute
California Institute of Technology
Institute for High Energy Physics
University of Belgrade
CIEMAT
CERN
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Research output: Contribution to journal › Article › peer-review

130 Citations (Scopus)

Abstract

The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, m_t ^pole, or the strong coupling constant, α_S. With the parton distribution function set NNPDF2.3, a pole mass of 176.7_−3.4 ^+3.8 GeV is obtained when constraining α_S at the scale of the Z boson mass, m_Z, to the current world average. Alternatively, by constraining m_t ^pole to the latest average from direct mass measurements, a value of α_S(m_Z)=0.1151_−0.0032 ^+0.0033 is extracted. This is the first determination of α_S using events from top-quark production.

Original language	English
Pages (from-to)	496-517
Number of pages	22
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	728
DOIs	https://doi.org/10.1016/j.physletb.2013.12.009
Publication status	Published - 20 Jan 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2013 The Authors

Funding

We thank Alexander Mitov for his help with the NNLO calculations. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). We thank Alexander Mitov for his help with the NNLO calculations. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MES (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER , SF0690030s09 and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON , RosAtom , RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter , IPST , STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).

Funders	Funder number
CPAN
MESTD
MON
MSES
MSHE
MoER	SF0690030s09
STAR
Swiss Funding Agencies
TUBITAK
UASLP-FAI
National Science Foundation	1151640, 0969555, 1306951, 1205960, 1211067
U.S. Department of Energy
Hispanics in Philanthropy
Human Growth Foundation
California Department of Fish and Wildlife
Western Carolina University
Ministry of Science and Technology
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
California Earthquake Authority
Marketing Science Institute
Center for African Studies
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Santa Fe Institute
Louisiana Academy of Sciences
Rochester Academy of Science
National Research Foundation
CERN
Thailand Center of Excellence in Physics
Institute for the Promotion of Teaching Science and Technology
Science and Technology Facilities Council	ST/F006748/1, ST/L00609X/1, ST/I000410/1, ST/J004901/1, ST/G502347/1, ST/K003542/1, ST/K001256/1, ST/J005479/1, ST/I000305/1, ST/I505580/1, ST/I002200/1, ST/J005665/1, ST/K001604/1, ST/M002020/1, ST/K003844/1, ST/J004871/1, PP/E002803/1, ST/H000925/2, ST/H000925/1, ST/K001531/1, ST/F007434/1, ST/I005912/1, ST/K001639/1, ST/L005603/1, ST/I003622/1
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India
Ministry of Science and Innovation, New Zealand
Taighde Éireann - Research Ireland
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	144921
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Research Promotion Foundation
National Science Council
Fundação para a Ciência e a Tecnologia
Russian Foundation for Basic Research
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Academy of Finland
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Fonds De La Recherche Scientifique - FNRS
Russian Academy of Sciences
Fonds Wetenschappelijk Onderzoek
Consejo Nacional de Ciencia y Tecnología
Ministerio de Economía y Competitividad
General Secretariat for Research and Technology
Hungarian Scientific Research Fund
Conselho Nacional de Desenvolvimento Científico e Tecnológico
National Research Foundation of Korea
Joint Institute for Nuclear Research
Nemzeti Kutatási és Technológiai Hivatal
Instituto Nazionale di Fisica Nucleare
Medical Engineering Centre, King’s College London
National Science and Technology Development Agency
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Ministry of Science and Technology, Taiwan
National Academy of Sciences of Ukraine
Centre National de la Recherche Scientifique
Ministry of Education and Science
Institute for Research in Fundamental Sciences
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Bundesministerium für Bildung und Frauen
Secretaría de Estado de Investigación, Desarrollo e Innovación
Bundesministerium für Wissenschaft und Forschung
European Regional Development Fund
State Atomic Energy Corporation ROSATOM
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
Pakistan Atomic Energy Commission
Department of Science and Technology, Government of West Bengal
Fundació Catalana de Trasplantament
Institut National de Physique Nucléaire et de Physique des Particules

Keywords

CMS
Constant
Coupling
Cross section
Mass
Pair
Physics
QCD
Quark
Strong
Top

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10.1016/j.physletb.2013.12.009

Cite this

@article{60c9c551678f4ceb80fbe0518a8edb39,

title = "Determination of the top-quark pole mass and strong coupling constant from the tt¯ production cross section in pp collisions at s=7 TeV",

abstract = "The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, mt pole, or the strong coupling constant, αS. With the parton distribution function set NNPDF2.3, a pole mass of 176.7−3.4 +3.8 GeV is obtained when constraining αS at the scale of the Z boson mass, mZ, to the current world average. Alternatively, by constraining mt pole to the latest average from direct mass measurements, a value of αS(mZ)=0.1151−0.0032 +0.0033 is extracted. This is the first determination of αS using events from top-quark production.",

keywords = "CMS, Constant, Coupling, Cross section, Mass, Pair, Physics, QCD, Quark, Strong, Top",

author = "\{CMS Collaboration\} and S. Chatrchyan and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and V. Kn{\"u}nz and M. Krammer and I. Kr{\"a}tschmer and D. Liko and I. Mikulec and D. Rabady and B. Rahbaran and C. Rohringer and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and W. Treberer-Treberspurg and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and M. Bansal and S. Bansal and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and S. Luyckx and L. Mucibello and S. Ochesanu and B. Roland and R. Rougny and Z. Staykova and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and A. Cakir",

note = "Publisher Copyright: {\textcopyright} 2013 The Authors",

year = "2014",

month = jan,

day = "20",

doi = "10.1016/j.physletb.2013.12.009",

language = "English",

volume = "728",

pages = "496--517",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Determination of the top-quark pole mass and strong coupling constant from the tt¯ production cross section in pp collisions at s=7 TeV

AU - CMS Collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Knünz, V.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, C.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Luyckx, S.

AU - Mucibello, L.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Staykova, Z.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Cakir, A.

PY - 2014/1/20

Y1 - 2014/1/20

N2 - The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, mt pole, or the strong coupling constant, αS. With the parton distribution function set NNPDF2.3, a pole mass of 176.7−3.4 +3.8 GeV is obtained when constraining αS at the scale of the Z boson mass, mZ, to the current world average. Alternatively, by constraining mt pole to the latest average from direct mass measurements, a value of αS(mZ)=0.1151−0.0032 +0.0033 is extracted. This is the first determination of αS using events from top-quark production.

AB - The inclusive cross section for top-quark pair production measured by the CMS experiment in proton–proton collisions at a center-of-mass energy of 7 TeV is compared to the QCD prediction at next-to-next-to-leading order with various parton distribution functions to determine the top-quark pole mass, mt pole, or the strong coupling constant, αS. With the parton distribution function set NNPDF2.3, a pole mass of 176.7−3.4 +3.8 GeV is obtained when constraining αS at the scale of the Z boson mass, mZ, to the current world average. Alternatively, by constraining mt pole to the latest average from direct mass measurements, a value of αS(mZ)=0.1151−0.0032 +0.0033 is extracted. This is the first determination of αS using events from top-quark production.

KW - CMS

KW - Constant

KW - Coupling

KW - Cross section

KW - Mass

KW - Pair

KW - Physics

KW - QCD

KW - Quark

KW - Strong

KW - Top

UR - https://www.scopus.com/pages/publications/85034960879

U2 - 10.1016/j.physletb.2013.12.009

DO - 10.1016/j.physletb.2013.12.009

M3 - Article

AN - SCOPUS:85034960879

SN - 0370-2693

VL - 728

SP - 496

EP - 517

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Determination of the top-quark pole mass and strong coupling constant from the tt¯ production cross section in pp collisions at s=7 TeV

Abstract

Bibliographical note

Funding

Keywords

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