Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at √s = 7 TeV

The CMS collaboration

doi:10.1007/JHEP11(2020)001

Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at √s = 7 TeV

The CMS collaboration

University of Trento
CERN
A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
Université libre de Bruxelles
Vrije Universiteit Brussel
University of Maryland, College Park
Purdue University Northwest
Ghent University
Université Paris-Saclay
Université catholique de Louvain
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Federal do Rio Grande do Sul
Universidade Federal de Mato Grosso do Sul
Universidade Federal de Pelotas
Universidade Estadual Paulista Júlio de Mesquita Filho
Universidade Federal do ABC
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
Beihang University
Tsinghua University
CAS - Institute of High Energy Physics
University of Chinese Academy of Sciences
Peking University
Zhejiang University
Universidad de los Andes Colombia
Universidad de Antioquia
University of Split
Ruder Boskovic Institute
Alikhanov Institute for Theoretical and Experimental Physics
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Escuela Politécnica Nacional
Universidad San Francisco de Quito
Academy of Scientific Research and Technology
Cairo University
The British University in Egypt
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Lappeenranta-Lahti University of Technology
Purdue University
Laboratoire Leprince-Ringuet
Université de Strasbourg
Université de Haute-Alsace
CNRS/IN2P3
Universite Claude Bernard Lyon 1
Georgian Technical University
Ivane Javakhishvili Tbilisi State University
RWTH Aachen University
Erzincan University
German Electron Synchrotron
University of Hamburg
Brandenburg University of Technology
Karlsruhe Institute of Technology
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
National Technical University of Athens
University of Ioannina
Eötvös Loránd University
University of Debrecen
Wigner Research Centre for Physics
Institute for Nuclear Research
Hungarian University of Agriculture and Life Sciences
Indian Institute of Science Bangalore
National Institute of Science Education and Research
Indian Institute of Technology Bhubaneswar
Institute of Physics
Panjab University
G.H.G. Khalsa College
University of Delhi
Saha Institute of Nuclear Physics
Shoolini University of Biotechnology and Management Sciences
University of Hyderabad
Visva-Bharati University
Indian Institute of Technology Madras
Homi Bhabha National Institute
Tata Institute of Fundamental Research
Indian Institute of Science Education and Research Pune
Institute for Research for Fundamental Sciences
University College Dublin
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
University of Catania
CSFNSM
University of Florence
University of Genoa
University of Milan - Bicocca
University of Basilicata
University of Naples Federico II
Università G. Marconi
University of Padua
University of Pavia
University of Perugia
Scuola Normale Superiore di Pisa
University of Pisa
University of Rome La Sapienza
University of Turin
University of Eastern Piedmont
University of Trieste
Kyungpook National University
Chonnam National University
Hanyang University
Korea University
Kyung Hee University
Sejong University
Seoul National University
University of Seoul
Sungkyunkwan University
Riga Technical University
Vilnius University
University of Malaya
Malaysian Nuclear Agency
Universidad de Sonora
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Consejo Nacional de Ciencia y Tecnologia Mexico
Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
Universidad Autonoma de San Luis Potosi
University of Montenegro
The University of Auckland
University of Canterbury
Quaid-I-Azam University
AGH University of Krakow
National Centre for Nuclear Research
University of Warsaw
Warsaw University of Technology
Laboratório de Instrumentação e Física Experimental de Partículas
Institute for Nuclear Research of the Russian Academy of Sciences
Moscow Engineering Physics Institute
Petersburg Nuclear Physics Institute (PNPI)
Peter the Great St. Petersburg Polytechnic University
University of Florida
Imperial College London
Moscow Institute of Physics and Technology
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Lomonosov Moscow State University
California Institute of Technology
Novosibirsk State University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
Tomsk Polytechnic University
Tomsk State University
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
Universidad de Cantabria
University of Siena
University of Colombo
University of Ruhuna
Paul Scherrer Institute
University of Zurich
ETH Zurich - Institute for Particle Physics and Astrophysics (IPA)
National Central University
National Taiwan University
Chulalongkorn University
Cukurova University
Mehmet Akif Ersoy University
Sirnak University
Near East University
Beykent University
Istanbul Aydin University
Mersin University
Piri Reis University
Middle East Technical University
Ozyegin University
Izmir Institute of Technology
Yozgat Bozok University
Bogazici University
Marmara University
Turkish National Defence University
Kafkas University
Istanbul Bilgi University
Istanbul Technical University
Hacettepe University
Istanbul University
Adiyaman University
NASU - Institute for Single Crystals
NASU - Kharkov Institute of Physics and Technology
University of Bristol
Rutherford Appleton Laboratory
University of Southampton
Durham University
Monash University
Brunel University London
Baylor University
Catholic University of America
University of Alabama
Boston University
Brown University
Bethel University
Karamanoglu Mehmetbey University
University of California at Davis
University of California at Los Angeles
University of California at Riverside
University of California at San Diego
University of California at Santa Barbara
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Fermi National Accelerator Laboratory
Florida International University
Florida State University
Florida Institute of Technology
University of Illinois at Chicago
University of Iowa
Bingol University
Sinop University
Mimar Sinan Guzel Sanatlar University
Nanjing Normal University
Johns Hopkins University
University of Kansas
Kansas State University
Lawrence Livermore National Laboratory
Massachusetts Institute of Technology
University of Minnesota Twin Cities
University of Mississippi
University of Nebraska-Lincoln
SUNY Buffalo
Northeastern University
Northwestern University
University of Notre Dame
Ohio State University
Princeton University
University of Puerto Rico
Rice University
University of Rochester
Rutgers - The State University of New Jersey, New Brunswick
University of Tennessee
Texas A&M University
Texas A&M University at Qatar
Texas Tech University
Vanderbilt University
University of Virginia
Wayne State University
University of Wisconsin-Madison

科研成果: 期刊稿件 › 文章 › 同行评审

29 引用（Scopus）

摘要

The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The data are from proton-proton collisions at s = 7 TeV, corresponding to an integrated luminosity of 4.8 fb⁻¹, collected with the CMS detector at the LHC. Evidence of a decrease in these ratios as a function of the particle multiplicity is observed, more pronounced at low transverse momentum pTμμ. For ϒ(nS) mesons with pTμμ> 7 GeV, where most of the data were collected, the correlation with multiplicity is studied as a function of the underlying event transverse sphericity and the number of particles in a cone around the ϒ(nS) direction. The ratios are found to be multiplicity independent for jet-like events. The mean pTμμ values for the ϒ(nS) states as a function of particle multiplicity are also measured and found to grow more steeply as their mass increases. [Figure not available: see fulltext.]

源语言	英语
文章编号	1
期刊	Journal of High Energy Physics
卷	2020
期	11
DOI	https://doi.org/10.1007/JHEP11(2020)001
出版状态	已出版 - 1 11月 2020
已对外发布	是

访问文件

10.1007/JHEP11(2020)001

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{cbc4fc5e9dc44fc7a5e9155519fc9d4d,

title = "Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at √s = 7 TeV",

abstract = "The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The data are from proton-proton collisions at s = 7 TeV, corresponding to an integrated luminosity of 4.8 fb−1, collected with the CMS detector at the LHC. Evidence of a decrease in these ratios as a function of the particle multiplicity is observed, more pronounced at low transverse momentum pTμμ. For ϒ(nS) mesons with pTμμ> 7 GeV, where most of the data were collected, the correlation with multiplicity is studied as a function of the underlying event transverse sphericity and the number of particles in a cone around the ϒ(nS) direction. The ratios are found to be multiplicity independent for jet-like events. The mean pTμμ values for the ϒ(nS) states as a function of particle multiplicity are also measured and found to grow more steeply as their mass increases. [Figure not available: see fulltext.]",

keywords = "B physics, Hadron-Hadron scattering (experiments), Particle correlations and fluctuations, Quarkonium",

author = "\{The CMS collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and T. Bergauer and M. Dragicevic and J. Er{\"o} and \{Escalante Del Valle\}, A. and M. Flechl and R. Fr{\"u}hwirth and M. Jeitler and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and W. Waltenberger and Wulz, \{C. E.\} and M. Zarucki and V. Drugakov and V. Mossolov and \{Suarez Gonzalez\}, J. and Darwish, \{M. R.\} and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and T. Kello and A. Lelek and M. Pieters and \{Rejeb Sfar\}, H. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Putte\}, S. and \{Van Remortel\}, N. and F. Blekman and Bols, \{E. S.\} and Chhibra, \{S. S.\} and J. D{\textquoteright}Hondt and \{De Clercq\}, J. and D. Lontkovskyi and S. Lowette and I. Marchesini and S. Moortgat and Q. Python and L. Wang and T. Cheng",

note = "Publisher Copyright: {\textcopyright} 2020, The Author(s).",

year = "2020",

month = nov,

day = "1",

doi = "10.1007/JHEP11(2020)001",

language = "英语",

volume = "2020",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "11",

}

TY - JOUR

T1 - Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at √s = 7 TeV

AU - The CMS collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Flechl, M.

AU - Frühwirth, R.

AU - Jeitler, M.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Rad, N.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Drugakov, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - Darwish, M. R.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Kello, T.

AU - Lelek, A.

AU - Pieters, M.

AU - Rejeb Sfar, H.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Putte, S.

AU - Van Remortel, N.

AU - Blekman, F.

AU - Bols, E. S.

AU - Chhibra, S. S.

AU - D’Hondt, J.

AU - De Clercq, J.

AU - Lontkovskyi, D.

AU - Lowette, S.

AU - Marchesini, I.

AU - Moortgat, S.

AU - Python, Q.

AU - Wang, L.

AU - Cheng, T.

PY - 2020/11/1

Y1 - 2020/11/1

N2 - The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The data are from proton-proton collisions at s = 7 TeV, corresponding to an integrated luminosity of 4.8 fb−1, collected with the CMS detector at the LHC. Evidence of a decrease in these ratios as a function of the particle multiplicity is observed, more pronounced at low transverse momentum pTμμ. For ϒ(nS) mesons with pTμμ> 7 GeV, where most of the data were collected, the correlation with multiplicity is studied as a function of the underlying event transverse sphericity and the number of particles in a cone around the ϒ(nS) direction. The ratios are found to be multiplicity independent for jet-like events. The mean pTμμ values for the ϒ(nS) states as a function of particle multiplicity are also measured and found to grow more steeply as their mass increases. [Figure not available: see fulltext.]

AB - The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The data are from proton-proton collisions at s = 7 TeV, corresponding to an integrated luminosity of 4.8 fb−1, collected with the CMS detector at the LHC. Evidence of a decrease in these ratios as a function of the particle multiplicity is observed, more pronounced at low transverse momentum pTμμ. For ϒ(nS) mesons with pTμμ> 7 GeV, where most of the data were collected, the correlation with multiplicity is studied as a function of the underlying event transverse sphericity and the number of particles in a cone around the ϒ(nS) direction. The ratios are found to be multiplicity independent for jet-like events. The mean pTμμ values for the ϒ(nS) states as a function of particle multiplicity are also measured and found to grow more steeply as their mass increases. [Figure not available: see fulltext.]

KW - B physics

KW - Hadron-Hadron scattering (experiments)

KW - Particle correlations and fluctuations

KW - Quarkonium

UR - https://www.scopus.com/pages/publications/85096395259

U2 - 10.1007/JHEP11(2020)001

DO - 10.1007/JHEP11(2020)001

M3 - 文章

AN - SCOPUS:85096395259

SN - 1029-8479

VL - 2020

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 1

ER -

Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at √s = 7 TeV

摘要

访问文件

其它文件与链接

学术指纹

引用此