Measurement of the muon charge asymmetry in inclusive pp - GT W plus X production at root s=7 TeV and an improved determination of light parton distribution functions

Chatrchyan, S.; Adžić, Petar; Đorđević, Miloš; Ekmedžić, Marko; Milošević, Jovan; Milenović, Predrag; Reković, Vladimir

doi:10.1103/PhysRevD.90.032004

2014

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Authors

Chatrchyan, S.
Adžić, Petar
Đorđević, Miloš

CMS Collaboration (ukupan broj autora: 2214)

Article (Published version)

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Abstract

Measurements of the muon charge asymmetry in inclusive pp - GT W + X production at root s = 7 TeV are presented. The data sample corresponds to an integrated luminosity of 4.7 fb(-1) recorded with the CMS detector at the LHC. With a sample of more than 20 million W - GT mu nu events, the statistical precision is greatly improved in comparison to previous measurements. These new results provide additional constraints on the parton distribution functions of the proton in the range of the Bjorken scaling variable x from 10(-3) to 10(-1). These measurements and the recent CMS measurement of associated W + charm production are used together with the cross sections for inclusive deep inelastic e(+/-) p scattering at HERA in a next-to-leading-order QCD analysis. The determination of the valence quark distributions is improved, and the strange-quark distribution is probed directly through the leading-order process g + s - GT W + c in proton-proton collisions at the LHC.

Source:
Physical Review D, 2014, 90, 3

Funding / projects:

Austrian Federal Ministry of Science and Research, Austrian Science Fund, Belgian Fonds de la Recherche Scientifique, Fonds voor Wetenschappelijk Onderzoek, CNPq, CAPES, FAPERJ, FAPESP, Bulgarian Ministry of Education and Science, CERN, Chinese Academy of Sciences, Ministry of Science and Technology, National Natural Science Foundation of China, Colombian Funding Agency (COLCIENCIAS), Croatian Ministry of Science, Education and Sport, Croatian Science Foundation, Research Promotion Foundation, Cyprus, Ministry of Education and Research [SF0690030s09], European Regional Development Fund, Estonia, Academy of Finland, Finnish Ministry of Education and Culture, Helsinki Institute of Physics, Institut National de Physique Nucleaire et de Physique des Particules/CNRS, Commissariat a lEnergie Atomique et aux Energies Alternatives/CEA, France, Bundesministerium fur Bildung und Forschung, Deutsche Forschungsgemeinschaft, Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany, General Secretariat for Research and Technology, Greece, National Scientific Research Foundation, National Innovation Office, Hungary, Department of Atomic Energy and the Department of Science and Technology, India, Institute for Studies in Theoretical Physics and Mathematics, Iran, Science Foundation, Ireland, Istituto Nazionale di Fisica Nucleare, Italy, Korean Ministry of Education, Science and Technology and the World Class University program of NRF, Republic of Korea, Lithuanian Academy of Sciences, Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI), Ministry of Business, Innovation and Employment, New Zealand, Pakistan Atomic Energy Commission, Ministry of Science and Higher Education, National Science Centre, Poland, Fundacao para a Ciencia e a Tecnologia, Portugal, JINR, Dubna, Ministry of Education and Science of the Russian Federation, Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, Russian Foundation for Basic Research, Ministry of Education, Science and Technological Development of Serbia, Secretaria a de Estado de Investigacion, Desarrollo e Innovacion and Programa Consolider-Ingenio, Spain, Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER), National Science Council, Taipei, Thailand Center of Excellence in Physics, Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research, National Science and Technology Development Agency of Thailand, Scientific and Technical Research Council of Turkey, Turkish Atomic Energy Authority, Science and Technology Facilities Council, UK, U.S. Department of Energy, U.S. National Science Foundation, Marie-Curie programme, European Research Council, EPLANET (European Union), Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, Belgian Federal Science Policy Office, Fonds pour la Formation a la Recherche dans lIndustrie et dans lAgriculture (FRIA-Belgium), Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium), Ministry of Education, Youth and Sports (MEYS) of Czech Republic, Council of Science and Industrial Research, India, Compagnia di San Paolo (Torino), HOMING PLUS programme of Foundation for Polish Science, EU, Regional Development Fund, EU-ESF, Greek NSRF

DOI: 10.1103/PhysRevD.90.032004

ISSN: 2470-0010; 2470-0029

WoS: 000341105600001

Scopus: 2-s2.0-84922834193

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TY  - JOUR
AU  - Chatrchyan, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Ekmedžić, Marko
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Reković, Vladimir
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/85
AB  - Measurements of the muon charge asymmetry in inclusive pp - GT W + X production at root s = 7 TeV are presented. The data sample corresponds to an integrated luminosity of 4.7 fb(-1) recorded with the CMS detector at the LHC. With a sample of more than 20 million W - GT mu nu events, the statistical precision is greatly improved in comparison to previous measurements. These new results provide additional constraints on the parton distribution functions of the proton in the range of the Bjorken scaling variable x from 10(-3) to 10(-1). These measurements and the recent CMS measurement of associated W + charm production are used together with the cross sections for inclusive deep inelastic e(+/-) p scattering at HERA in a next-to-leading-order QCD analysis. The determination of the valence quark distributions is improved, and the strange-quark distribution is probed directly through the leading-order process g + s - GT W + c in proton-proton collisions at the LHC.
T2  - Physical Review D
T1  - Measurement of the muon charge asymmetry in inclusive pp - GT W plus X production at root s=7 TeV and an improved determination of light parton distribution functions
VL  - 90
IS  - 3
DO  - 10.1103/PhysRevD.90.032004
ER  -

@article{
author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Ekmedžić, Marko and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir",
year = "2014",
abstract = "Measurements of the muon charge asymmetry in inclusive pp - GT W + X production at root s = 7 TeV are presented. The data sample corresponds to an integrated luminosity of 4.7 fb(-1) recorded with the CMS detector at the LHC. With a sample of more than 20 million W - GT mu nu events, the statistical precision is greatly improved in comparison to previous measurements. These new results provide additional constraints on the parton distribution functions of the proton in the range of the Bjorken scaling variable x from 10(-3) to 10(-1). These measurements and the recent CMS measurement of associated W + charm production are used together with the cross sections for inclusive deep inelastic e(+/-) p scattering at HERA in a next-to-leading-order QCD analysis. The determination of the valence quark distributions is improved, and the strange-quark distribution is probed directly through the leading-order process g + s - GT W + c in proton-proton collisions at the LHC.",
journal = "Physical Review D",
title = "Measurement of the muon charge asymmetry in inclusive pp - GT W plus X production at root s=7 TeV and an improved determination of light parton distribution functions",
volume = "90",
number = "3",
doi = "10.1103/PhysRevD.90.032004"
}

Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedžić, M., Milošević, J., Milenović, P.,& Reković, V.. (2014). Measurement of the muon charge asymmetry in inclusive pp - GT W plus X production at root s=7 TeV and an improved determination of light parton distribution functions. in Physical Review D, 90(3).
https://doi.org/10.1103/PhysRevD.90.032004

Chatrchyan S, Adžić P, Đorđević M, Ekmedžić M, Milošević J, Milenović P, Reković V. Measurement of the muon charge asymmetry in inclusive pp - GT W plus X production at root s=7 TeV and an improved determination of light parton distribution functions. in Physical Review D. 2014;90(3).
doi:10.1103/PhysRevD.90.032004 .

Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of the muon charge asymmetry in inclusive pp - GT W plus X production at root s=7 TeV and an improved determination of light parton distribution functions" in Physical Review D, 90, no. 3 (2014),
https://doi.org/10.1103/PhysRevD.90.032004 . .