Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV

The ALICE collaboration

doi:10.1007/JHEP05(2021)290

Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV

The ALICE collaboration

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

European Organization for Nuclear Research
VECC Kolkata
Nuclear Physics Institute of the Cas
Johann Wolfgang Goethe University
Lund University
INFN Sez. di Torino
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
Aligarh Muslim University
Korea Institute of Science and Technology Information
Indonesian Institute of Sciences
ITEP
GSI Helmholtz Center
University of Campinas
National Research Centre "Kurchatov Institute"
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
University of St. Petersburg
Horia Hulubei National Institute of Physics and Nuclear Engineering
Science Park 105
University of Münster
Heidelberg University
Rudjer Boskovic Institute
Dipartimento di Fisica 'G. Galilei' and INFN
Lawrence Berkeley National Laboratory
l'institut du thorax
University of Oslo
Yale University
Institut de Physique Nucléaire
Laboratori Nazionali Del Sud
Gangneung-Wonju National University
University of Jammu
Université Paris-Saclay Centre d’ Études de Saclay (CEA)
Rheinische Friedrich-Wilhelms-Universität Bonn
Bose Institute
National and Kapodistrian University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
LAIC, Université d'Auvergne
University of Liverpool
Wayne State University
Joint Inst. for Nuclear Research
The Indian Institute of Technology Bombay
Pontifical Catholic University of Peru San Miguel
Niels Bohr Institutet
Universite de Strasbourg
National Research Nuclear University MEPhI
Instituto de Ciencias Nucleares de la UNAM
Petersburg Nuclear Phys. Inst.
Institute of Space Sciences
Gauhati University
Sezione INFN di Cagliari
INFN, Laboratori Nazionali Di Frascati
Czech Technical University in Prague
Technical University of Munich
University of Texas at Austin
University of Pavia
Oak Ridge National Laboratory
Inha University
P. J. Safarik University
University of Brescia
Moscow Institute of Physics and Technology
University of São Paulo
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
Politecnico di Bari
Russian Federal Nuclear Center (VNIIEF)
Stefan Meyer Institut für Subatomare Physik (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
Universidad Autonoma de Sinaloa
Benemerita Universidad Autonoma de Puebla
INFN- Sezione di Trieste
Homi Bhabha National Institute
University of Lyon
Tsukuba University
Energy and Sustainable Economic Development (ENEA)
University of Cape Town
University of Birmingham
Politecnico di Torino
University of Grenoble Alpes
University of Eastern Piedmont
UFABC
Sezione INFN di Roma La Sapienza
Frankfurt Institute for Advanced Studies
Indian Institute of Technology Indore
Warsaw Institute of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Institute for Nuclear Research of the Russian Academy of Sciences
Panjab University
University of Zagreb
Institute for High Energy Physics (IHEP)
Chicago State University
National Nuclear Research Center
UFRGS
University of Split
the University of Utrecht
A.I. Alikhanyan National Science Laboratory (YerPhi)
University of Tokyo
Nagasaki Institute of Applied Science
Western Norway University of Applied Sciences
CINVESTAV
Yonsei University
Creighton University
University of Tennessee
Ohio State University
Technical University of Košice
Institute of Experimental Physics Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
University of Jyväskylä
Chonbuk National University
Pusan National University
Sejong University
California Polytechnic State University, San Luis Obispo
Suranaree University of Technology
Univ of Mining and Metallurgy
National Center for Nuclear Research (NCBJ)
University of South-Eastern Norway
China Institute of Atomic Energy
Fudan University
Moscow State University
Multimedia and Distributed Systems Laboratory
Institute of Physics of the Czech Academy of Sciences
University of Foggia
Dipartimento di Fisica
Comenius University
Chungbuk National University
Hiroshima University
Budker Institute of Nuclear Physics (SB RAS)
University of Rajasthan
University of Helsinki and Helsinki Institute of Physics
Wrocław University
University of Tübingen
Nara Women's University
University of Science and Technology of China
Bogolyubov Institute for Theoretical Physics Nasu

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26 Scopus citations

Abstract

Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at s = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-(∆η ∼ 0) and long-range (1.6 < |∆η| < 1.8) in pseudorapidity are extracted on the near-side (∆φ ∼ 0). They are reported as a function of transverse momentum (p_T) in the range 1 < p_T< 4 GeV/c. Furthermore, the event-scale dependence is studied for the first time by requiring the presence of high-p_T leading particles or jets for varying p_T thresholds. The results demonstrate that the long-range “ridge” yield, possibly related to the collective behavior of the system, is present in events with high-p_T processes as well. The magnitudes of the short- and long-range yields are found to grow with the event scale. The results are compared to EPOS LHC and PYTHIA 8 calculations, with and without string-shoving interactions. It is found that while both models describe the qualitative trends in the data, calculations from EPOS LHC show a better quantitative agreement for the p_T dependency, while overestimating the event-scale dependency. [Figure not available: see fulltext.]

Original language	English
Article number	290
Journal	Journal of High Energy Physics
Volume	2021
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2021)290
State	Published - May 2021

Keywords

Heavy Ion Experiments

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10.1007/JHEP05(2021)290

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@article{81b294bad0c04572ad2c5feccb015c20,

title = "Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV",

abstract = "Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at s = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-(∆η ∼ 0) and long-range (1.6 < |∆η| < 1.8) in pseudorapidity are extracted on the near-side (∆φ ∼ 0). They are reported as a function of transverse momentum (pT) in the range 1 < pT< 4 GeV/c. Furthermore, the event-scale dependence is studied for the first time by requiring the presence of high-pT leading particles or jets for varying pT thresholds. The results demonstrate that the long-range “ridge” yield, possibly related to the collective behavior of the system, is present in events with high-pT processes as well. The magnitudes of the short- and long-range yields are found to grow with the event scale. The results are compared to EPOS LHC and PYTHIA 8 calculations, with and without string-shoving interactions. It is found that while both models describe the qualitative trends in the data, calculations from EPOS LHC show a better quantitative agreement for the pT dependency, while overestimating the event-scale dependency. [Figure not available: see fulltext.]",

keywords = "Heavy Ion Experiments",

author = "\{The ALICE collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and J. Adolfsson and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and Z. Akbar and A. Akindinov and M. Al-Turany and Albuquerque, \{D. S.D.\} and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and Y. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and T. Alt and L. Altenkamper and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and D. Andreou and A. Andronic and V. Anguelov and T. Anti{\v c}i{\'c} and F. Antinori and P. Antonioli and C. Anuj and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and M. Arratia and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and S. Aziz and Azmi, \{M. D.\} and A. Badal{\`a} and L. Fabbietti",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2021",

month = may,

doi = "10.1007/JHEP05(2021)290",

language = "English",

volume = "2021",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

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TY - JOUR

T1 - Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV

AU - The ALICE collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Akbar, Z.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Albuquerque, D. S.D.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alt, T.

AU - Altenkamper, L.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, D.

AU - Andronic, A.

AU - Anguelov, V.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arratia, M.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Fabbietti, L.

PY - 2021/5

Y1 - 2021/5

N2 - Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at s = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-(∆η ∼ 0) and long-range (1.6 < |∆η| < 1.8) in pseudorapidity are extracted on the near-side (∆φ ∼ 0). They are reported as a function of transverse momentum (pT) in the range 1 < pT< 4 GeV/c. Furthermore, the event-scale dependence is studied for the first time by requiring the presence of high-pT leading particles or jets for varying pT thresholds. The results demonstrate that the long-range “ridge” yield, possibly related to the collective behavior of the system, is present in events with high-pT processes as well. The magnitudes of the short- and long-range yields are found to grow with the event scale. The results are compared to EPOS LHC and PYTHIA 8 calculations, with and without string-shoving interactions. It is found that while both models describe the qualitative trends in the data, calculations from EPOS LHC show a better quantitative agreement for the pT dependency, while overestimating the event-scale dependency. [Figure not available: see fulltext.]

AB - Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at s = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-(∆η ∼ 0) and long-range (1.6 < |∆η| < 1.8) in pseudorapidity are extracted on the near-side (∆φ ∼ 0). They are reported as a function of transverse momentum (pT) in the range 1 < pT< 4 GeV/c. Furthermore, the event-scale dependence is studied for the first time by requiring the presence of high-pT leading particles or jets for varying pT thresholds. The results demonstrate that the long-range “ridge” yield, possibly related to the collective behavior of the system, is present in events with high-pT processes as well. The magnitudes of the short- and long-range yields are found to grow with the event scale. The results are compared to EPOS LHC and PYTHIA 8 calculations, with and without string-shoving interactions. It is found that while both models describe the qualitative trends in the data, calculations from EPOS LHC show a better quantitative agreement for the pT dependency, while overestimating the event-scale dependency. [Figure not available: see fulltext.]

KW - Heavy Ion Experiments

UR - https://www.scopus.com/pages/publications/85107537579

U2 - 10.1007/JHEP05(2021)290

DO - 10.1007/JHEP05(2021)290

M3 - Article

AN - SCOPUS:85107537579

SN - 1126-6708

VL - 2021

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 290

ER -

Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at √s = 13 TeV

Abstract

Keywords

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