Pseudorapidity and transverse momentum dependence of flow harmonics in p Pb and PbPb collisions

Abstract

2-s2.0-85054527535 ; Measurements of azimuthal angular correlations are presented for high-multiplicity pPb collisions at sNN=5.02TeV and peripheral PbPb collisions at sNN=2.76TeV. The data used in this work were collected with the Compact Muon Solenoid (CMS) detector at the European Organization for Nuclear Research (CERN) Large Hadron Collider (LHC). Fourier coefficients as functions of transverse momentum and pseudorapidity are studied using the scalar product method; four-, six-, and eight-particle cumulants; and the Lee-Yang zero technique. The influence of event plane decorrelation is evaluated using the scalar product method and found to account for most of the observed pseudorapidity dependence. © 2018 CERN. for the CMS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. ; ST/I003622/1, ST/I505580/1, ST/J004871/1, ST/J005479/1, ST/K003542/1, ST/L005603/1, ST/N000242/1, ST/N001273/1 National Science Foundation, NSF National Institutes of Health, NIH U.S. Department of Energy, USDOE Alfred P. Sloan Foundation Welch Foundation: C-1845 Hispanics in Philanthropy, HIP Alexander von Humboldt-Stiftung Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS) Qatar National Research Fund, QNRF Secretaría de Educación Pública, SEP Türkiye Atom Enerjisi Kurumu, TAEK Horizon 2020 Framework Programme, H2020: 675440 Weston Havens Foundation Louisiana Academy of Sciences, LAS Missouri University of Science and Technology, MST CERN Thailand Center of Excellence in Physics Cosmetic Surgery Foundation, CSF Institute for the Promotion of Teaching Science and Technology, IPST Science and Technology Facilities Council, STFC: ST/F007434/1, ST/M004775/1 European Commission, EC European Research Council, ERC Department of Science and Technology, Ministry of Science and Technology, India, ?????? Council of Scientific and Industrial Research, India, CSIR Ministry of Education - Singapore, MOE Department of Atomic Energy, Government of India, ???? Science Foundation Ireland, SFI Helmholtz-Gemeinschaft, HGF Deutsche Forschungsgemeinschaft, DFG Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP National Natural Science Foundation of China, NSFC Research Promotion Foundation, ???? Ministerstvo Školství, Mláde?e a T?lov?chovy, MŠMT National Science Council, NSC Fundacja na rzecz Nauki Polskiej, FNP Fundação para a Ciência e a Tecnologia, FCT Russian Foundation for Basic Research, ???? Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES Academy of Finland Bundesministerium für Bildung und Forschung, BMBF Chinese Academy of Sciences, CAS Austrian Science Fund, FWF Fonds De La Recherche Scientifique - FNRS, FNRS Russian Academy of Sciences, ??? Belgian Federal Science Policy Office, BELSPO Chulalongkorn University, CU Fonds Wetenschappelijk Onderzoek, FWO Agentschap voor Innovatie door Wetenschap en Technologie, IWT Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture, FRIA Consejo Nacional de Ciencia y Tecnología, CONACYT Ministerio de Economía y Competitividad, MINECO Bundesministerium für Wissenschaft, Forschung und Wirtschaft, BMWFW Ministry of Business, Innovation and Employment, MBIE Hungarian Scientific Research Fund, OTKA Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq Ministry of Science, ICT and Future Planning, MSIP National Research Foundation of Korea, NRF Joint Institute for Nuclear Research, JINR Instituto Nazionale di Fisica Nucleare, INFN A.G. Leventis Foundation National Science and Technology Development Agency, ????: Thailand Narodowe Centrum Nauki, NCN: 2012/07/E/ST2/01406, 2014/13/B/ST2/02543, 2014/14/M/ST2/00428, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861 Secretaría de Educación Superior, Ciencia, Tecnología e Innovación, SENESCYT Universiti Malaya, UM Ministerstwo Nauki i Szkolnictwa Wy?szego, MNiSW Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ Ministry of Science and Technology, Taiwan, MOST National Academy of Sciences of Ukraine, NASU Centre National de la Recherche Scientifique, CNRS Ministry of Education and Science, MES Institute for Research in Fundamental Sciences, IPM Benemérita Universidad Autónoma de Puebla, BUAP Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Secretaría de Estado de Investigación, Desarrollo e Innovación, SEIDI Horizon 2020 European Regional Development Fund, FEDER State Atomic Energy Corporation ROSATOM, ROSATOM Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV Pakistan Atomic Energy Commission, PAEC State Fund for Fundamental Research of Ukraine, SFFR Institut National de Physique Nucléaire et de Physique des Particules, IN2P3 ; We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER, ERC IUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece)GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, RFBR, and RAEP (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI, and FEDER (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); and DOE and NSF (USA). Individuals have received support from the Marie-Curie program and the European Research Council and Horizon 2020 Grant, Contract No. 675440 (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 Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, cofinanced by the European Union, Regional Development Fund, the Mobility Plus program of the Ministry of Science and Higher Education, the National Science Center (Poland), Contracts Harmonia No. 2014/14/M/ST2/00428, Opus No. 2014/13/B/ST2/02543, No. 2014/15/B/ST2/03998, and No. 2015/19/B/ST2/02861, Sonata-bis No. 2012/07/E/ST2/01406; the National Priorities Research Program by Qatar National Research Fund; the Programa Severo Ochoa del Principado de Asturias; the Thalis and Aristeia programs 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 No. C-1845; and the Weston Havens Foundation (USA).