Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at s NN =5.02 TeV

CMS Collaboration

doi:10.1103/PhysRevC.96.014915

Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at s NN =5.02 TeV

CMS Collaboration

Fizik Mühendisliği Bölümü

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
CERN
Belarusian State University
University of Antwerp
Vrije Universiteit Brussel
Université libre de Bruxelles
Peking University
Ghent University
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CAS - Institute of High Energy Physics
Institut Polytechnique de Paris
Universidad de los Andes Colombia
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
Joint Institute for Nuclear Research
Academy of Scientific Research and Technology
Helwan University
Zewail City of Science and Technology
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
Université de Haute-Alsace
Universite Claude Bernard Lyon 1
Georgian Technical University
Ivane Javakhishvili Tbilisi State University
RWTH Aachen 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
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University of Debrecen
National Institute of Science Education and Research
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Panjab University
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Saha Institute of Nuclear Physics
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Araştırma çıktısı: Dergi yayını › Makale › Hakem

22 Atıf (Scopus)

Özet

Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02TeV are studied as a function of the pseudorapidity separation (Δη) of the particle pair at small relative azimuthal angle (|Δφ|<π/3). The correlations are decomposed into a jet component that dominates the short-range correlations (|Δη|<1), and a component that persists at large Δη and may originate from collective behavior of the produced system. The events are classified in terms of the multiplicity of the produced particles. Finite azimuthal anisotropies are observed in high-multiplicity events. The second and third Fourier components of the particle-pair azimuthal correlations, V2 and V3, are extracted after subtraction of the jet component. The single-particle anisotropy parameters v2 and v3 are normalized by their laboratory frame midrapidity value and are studied as a function of ηc.m.. The normalized v2 distribution is found to be asymmetric about ηc.m.=0, with smaller values observed at forward pseudorapidity, corresponding to the direction of the proton beam, while no significant pseudorapidity dependence is observed for the normalized v3 distribution within the statistical uncertainties.

Orijinal dil	İngilizce
Makale numarası	014915
Dergi	Physical Review C
Hacim	96
Basın numarası	1
DOI'lar	https://doi.org/10.1103/PhysRevC.96.014915
Yayın durumu	Yayınlandı - 31 Tem 2017

Bibliyografik not

Publisher Copyright:
© 2017 CERN.

Finansman

Agencies: the Austrian Federal Ministry of Science, Research and Economy and the Austrian Science Fund; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China

Finansörler	Finansör numarası
Austrian Federal Ministry of Science
National Science Foundation	1606321, 1151640, 1506168, 1506130, 1211067, 1624356
CERN
Science and Technology Facilities Council	PP/E000479/1, GRIDPP, ST/H000925/1
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Chinese Academy of Sciences
Austrian Science Fund
Fonds De La Recherche Scientifique - FNRS
Fonds Wetenschappelijk Onderzoek
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science and Technology
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Ministry of Education and Science

Belgeye Erişim

10.1103/PhysRevC.96.014915

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@article{35b76b9983fe46ed93b9418aa9ac71bb,

title = "Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at s NN =5.02 TeV",

abstract = "Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02TeV are studied as a function of the pseudorapidity separation (Δη) of the particle pair at small relative azimuthal angle (|Δφ|<π/3). The correlations are decomposed into a jet component that dominates the short-range correlations (|Δη|<1), and a component that persists at large Δη and may originate from collective behavior of the produced system. The events are classified in terms of the multiplicity of the produced particles. Finite azimuthal anisotropies are observed in high-multiplicity events. The second and third Fourier components of the particle-pair azimuthal correlations, V2 and V3, are extracted after subtraction of the jet component. The single-particle anisotropy parameters v2 and v3 are normalized by their laboratory frame midrapidity value and are studied as a function of ηc.m.. The normalized v2 distribution is found to be asymmetric about ηc.m.=0, with smaller values observed at forward pseudorapidity, corresponding to the direction of the proton beam, while no significant pseudorapidity dependence is observed for the normalized v3 distribution within the statistical uncertainties.",

author = "\{CMS Collaboration\} and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and V. Kn{\"u}nz and A. K{\"o}nig and M. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and N. Rad and B. Rahbaran and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and J. Strauss 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 T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and J. Lauwers and S. Luyckx and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and A. Cakir",

note = "Publisher Copyright: {\textcopyright} 2017 CERN.",

year = "2017",

month = jul,

day = "31",

doi = "10.1103/PhysRevC.96.014915",

language = "English",

volume = "96",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at s NN =5.02 TeV

AU - CMS Collaboration

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Knünz, V.

AU - König, A.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rad, N.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Strauss, J.

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 - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Lauwers, J.

AU - Luyckx, S.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Cakir, A.

PY - 2017/7/31

Y1 - 2017/7/31

N2 - Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02TeV are studied as a function of the pseudorapidity separation (Δη) of the particle pair at small relative azimuthal angle (|Δφ|<π/3). The correlations are decomposed into a jet component that dominates the short-range correlations (|Δη|<1), and a component that persists at large Δη and may originate from collective behavior of the produced system. The events are classified in terms of the multiplicity of the produced particles. Finite azimuthal anisotropies are observed in high-multiplicity events. The second and third Fourier components of the particle-pair azimuthal correlations, V2 and V3, are extracted after subtraction of the jet component. The single-particle anisotropy parameters v2 and v3 are normalized by their laboratory frame midrapidity value and are studied as a function of ηc.m.. The normalized v2 distribution is found to be asymmetric about ηc.m.=0, with smaller values observed at forward pseudorapidity, corresponding to the direction of the proton beam, while no significant pseudorapidity dependence is observed for the normalized v3 distribution within the statistical uncertainties.

AB - Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02TeV are studied as a function of the pseudorapidity separation (Δη) of the particle pair at small relative azimuthal angle (|Δφ|<π/3). The correlations are decomposed into a jet component that dominates the short-range correlations (|Δη|<1), and a component that persists at large Δη and may originate from collective behavior of the produced system. The events are classified in terms of the multiplicity of the produced particles. Finite azimuthal anisotropies are observed in high-multiplicity events. The second and third Fourier components of the particle-pair azimuthal correlations, V2 and V3, are extracted after subtraction of the jet component. The single-particle anisotropy parameters v2 and v3 are normalized by their laboratory frame midrapidity value and are studied as a function of ηc.m.. The normalized v2 distribution is found to be asymmetric about ηc.m.=0, with smaller values observed at forward pseudorapidity, corresponding to the direction of the proton beam, while no significant pseudorapidity dependence is observed for the normalized v3 distribution within the statistical uncertainties.

UR - https://www.scopus.com/pages/publications/85027407411

U2 - 10.1103/PhysRevC.96.014915

DO - 10.1103/PhysRevC.96.014915

M3 - Article

AN - SCOPUS:85027407411

SN - 2469-9985

VL - 96

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 014915

ER -

Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at s NN =5.02 TeV

Özet

Bibliyografik not

Finansman

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