Journal
PHYSICS LETTERS B
Volume 813, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2020.136036
Keywords
CMS; Ridge; Collectivity; Small systems; Heavy flavor; Elliptic flow
Funding
- FWF (Austria)
- FNRS (Belgium)
- FWO (Belgium)
- CNPq (Brazil)
- CAPES (Brazil)
- FAPERJ (Brazil)
- FAPERGS (Brazil)
- FAPESP (Brazil)
- MES (Bulgaria)
- MOST (China)
- NSFC (China)
- COLCIENCIAS (Colombia)
- CSF (Croatia)
- RIF (Cyprus)
- SENESCYT (Ecuador)
- MoER (Estonia)
- ERDF (Estonia)
- Academy of Finland (Finland)
- MEC (Finland)
- CEA (France)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- GSRT (Greece)
- NKFIA (Hungary)
- DAE (India)
- DST (India)
- IPM (Iran)
- SFI (Ireland)
- INFN (Italy)
- NRF (Republic of Korea)
- MES (Latvia)
- MOE (Malaysia)
- UM (Malaysia)
- BUAP (Mexico)
- CONACYT (Mexico)
- UASLP-FAI (Mexico)
- FCT (Portugal)
- JINR (Dubna)
- MESTD (Serbia)
- SEIDI (Spain)
- FEDER (Spain)
- Swiss Funding Agencies (Switzerland)
- NSTDA (Thailand)
- TUBITAK (Turkey)
- TAEK (Turkey)
- NASU (Ukraine)
- DOE (USA)
- NSF (USA)
- Marie-Curie program
- European Research Council
- Horizon 2020 Grant (European Union) [675440, 752730, 765710]
- Leventis Foundation
- A.P. Sloan Foundation
- Alexander von Humboldt Foundation
- Belgian Federal Science Policy Office
- Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
- Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
- FWO (Belgium) under the Excellence of Science - EOS [30820817]
- Beijing Municipal Science AMP
- Technology Commission [Z191100007219010]
- Ministry of Education, Youth and Sports(MEYS) of the Czech Republic
- Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence Strategy [EXC 2121, 390833306]
- Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences
- Council of Science and Industrial Research, India
- HOMING PLUS program of the Foundation for Polish Science
- European Union, Regional Development Fund
- National Priorities Research Program by Qatar National Research Fund
- Ministry of Science and Higher Education of the Russian Federation (Russia) [02.a03.21.0005]
- Tomsk Polytechnic University Competitiveness Enhancement Program
- Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia Maria de Maeztu [MDM-2015-0509]
- Programa Severo Ochoa del Principado de Asturias
- Thalis and Aristeia programs
- EU-ESF
- Greek NSRF
- Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University
- Kavli Foundation
- Nvidia Corporation
- SuperMicro Corporation
- Welch Foundation [C-1845]
- Weston Havens Foundation (USA)
- NKFIA (Hungary) [123842, 123959, 124845, 124850, 125105, 128713, 128786, 129058]
- National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]
- BMBWF (Austria)
- CERN
- CAS (China)
- MSES (Croatia)
- ERC IUT (Estonia)
- PUT (Estonia)
- HIP (Finland)
- MSIP (Republic of Korea)
- LAS (Lithuania)
- CINVESTAV (Mexico)
- LNS (Mexico)
- SEP (Mexico)
- MOS (Montenegro)
- MBIE (New Zealand)
- PAEC (Pakistan)
- MSHE (Poland)
- NSC (Poland)
- MON (Russia)
- ROSATOM (Russia)
- RAS (Russia)
- RFBR (Russia)
- NRC KI (Russia)
- CPAN (Spain)
- PCTI (Spain)
- MoSTR(Sri Lanka)
- MST (Taipei)
- ThEPCenter (Thailand)
- IPST (Thailand)
- STAR (Thailand)
- STFC (United Kingdom)
- F.R.S.-FNRS
- Lendulet (Momentum) Program
- New National Excellence Program UNKP
- Mobility Plus program of the Ministry of Science and Higher Education
- Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
- STFC [ST/S000739/1] Funding Source: UKRI
Ask authors/readers for more resources
Measurements of the second Fourier harmonic coefficient (v(2)) of prompt and nonprompt D-0 mesons in different collision conditions show comparable values in some cases, but suggest a mass dependence in v(2) between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems.
Measurements of the second Fourier harmonic coefficient (v(2)) of the azimuthal distributions of prompt and nonprompt D-0 mesons produced in pp and pPb collisions are presented. Nonprompt D-0 mesons come from beauty hadron decays. The data samples are collected by the CMS experiment at nucleon-nucleon center-of-mass energies of 13 and 8.16 TeV, respectively. In high multiplicity pp collisions, v(2) signals for prompt charm hadrons are reported for the first time, and are found to be comparable to those for light-flavor hadron species over a transverse momentum (pT) range of 2-6 GeV. Compared at similar event multiplicities, the prompt D-0 meson v(2) values in pp and pPb collisions are similar in magnitude. The v(2) values for open beauty hadrons are extracted for the first time via nonprompt D-0 mesons in pPb collisions. For pT in the range of 2-5 GeV, the results suggest that v(2) for nonprompt D-0 mesons is smaller than that for prompt D-0 mesons. These new measurements indicate a positive charm hadron v(2) in pp collisions and suggest a mass dependence in v(2) between charm and beauty hadrons in the pPb system. These results provide insights into the origin of heavy-flavor quark collectivity in small systems. (C) 2020 The Author(s). Published by Elsevier B.V.
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