@article{10902/33822,
year = {2021},
month = {1},
url = {https://hdl.handle.net/10902/33822},
abstract = {Event-by-event long-range correlations of azimuthal anisotropy Fourier coefficients (vn) in 8.16 TeV pPb data, collected by the CMS experiment at the CERN Large Hadron Collider, are extracted using a subevent four-particle cumulant technique applied to very low multiplicity events. Each combination of four charged particles is selected from either two, three, or four distinct subevent regions of a pseudorapidity range from −2.4 to 2.4 of the CMS tracker, and with transverse momentum between 0.3 and 3.0 GeV. Using the subevent cumulant technique, correlations between vn of different orders are measured as functions of particle multiplicity and compared to the standard cumulant method without subevents over a wide event multiplicity range. At high multiplicities, the v₂ and v₃ coefficients exhibit an anticorrelation; this behavior is observed consistently using various methods. The v₂ and v₄ correlation strength is found to depend on the number of subevents used in the
calculation. As the event multiplicity decreases, the results from different subevent methods diverge because of
different contributions of noncollective or few-particle correlations. Correlations extracted with the four-subevent
method exhibit a tendency to diminish monotonically toward the lowest multiplicity region (about 20 charged
tracks) investigated. These findings extend previous studies to a significantly lower event multiplicity range and
establish the evidence for the onset of long-range collective multiparticle correlations in small system collisions.},
organization = {Individuals have received support from the Marie Curie programme and the European Research Council and Horizon 2020 Grant, Contracts No. 675440 and No. 765710 (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the F. R. S.-FNRS and FWO (Belgium) under the “Excellence of Science – EOS” – be.h Project No. 30820817; the Beijing Municipal Science & Technology
Commission, No. Z181100004218003; the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic;
the Lendület (“Momentum”) Programme and the János Bolyai Research Scholarship of the Hungarian Academy
of Sciences, the New National Excellence Program ÚNKP, the NKFIA research Grants No. 123842, No. 123959,
No. 124845, No. 124850, No. 125105, No. 128713, No. 128786, and No. 129058 (Hungary); the Council of
Science and Industrial Research, India; the HOMING PLUS programme of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund, the Mobility Plus programme of the Ministry of Science and Higher Education, the National Science Center (Poland), Contracts No. Harmonia 2014/14/M/ST2/00428, No. Opus 2014/13/B/ST2/02543, No. 2014/15/B/ST2/03998, and No. 2015/19/B/ST2/02861, No. Sonata-bis 2012/07/E/ST2/01406; the National Priorities Research Program by Qatar National Research Fund; the Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de Maeztu, Grant No. MDM-2015-0509 and the Programa Severo Ochoa del Principado de Asturias; the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; the Rachadapisek Sompot Fund for
Postdoctoral Fellowship, Chulalongkorn University and the Chulalongkorn Academic into Its 2nd Century Project
Advancement Project (Thailand); the Welch Foundation, contract C-1845; and the Weston Havens Foundation (USA).},
publisher = {American Physical Society},
publisher = {Physical Review C. 2021, 103(1), 014902},
title = {Correlations of azimuthal anisotropy Fourier harmonics with subevent cumulants in pPb collisions at √sNN = 8.16 TeV},
author = {Sirunyan, A. M. and Cabrillo Bartolomé, José Ibán and Calderón Tazón, Alicia and Chazin Quero, Bárbara and Duarte Campderros, Jorge and Fernández García, Marcos and Fernández Manteca, Pedro José and García Alonso, Andrea and García Ferrero, Juan and Gómez Gramuglio, Gervasio and López Virto, María Amparo and Marco de Lucas, Jesús and Martínez Rivero, Celso and Martínez Ruiz del Árbol, Pablo and Matorras Weinig, Francisco and Piedra Gómez, Jonatan and Prieëls, Cedric and Rodrigo Anoro, Teresa and Ruiz Jimeno, Alberto and Scodellaro, Luca and Trevisani, Nicolo and Vila Álvarez, Iván and Vilar Cortabitarte, Rocío},
}