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Title: System-size scan of D meson RAA and vn using PbPb, XeXe, ArAr, and OO collisions at energies available at the CERN Large Hadron Collider

Abstract

Here, experimental measurements indicate no suppression (e.g. RpPb ~ 1) but a surprisingly large D meson v2 was measured in pPb collisions. In order to understand these results we use Trento+v-USPhydro+DAB-MOD to make predictions and propose a system size scan at the LHC involving 208PbPb, 129XeXe, 40ArAr, and 16OO collisions. We find that the nuclear modification factor approaches unity as the system size is decreased, but nonetheless, in the 0–10% most central collisions v2{2} is roughly equivalent regardless of system size. These results arise from a rather non-trivial interplay between the shrinking path length and the enhancement of eccentricities in small systems at high multiplicity. Finally, we also find a surprising sensitivity of D mesons v2{2} in 0–10% at pT = 2–10 GeV to the slight deformation of 129Xe recently found at LHC.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [3];  [4]
  1. Universite de Nantes (France)
  2. Central China Normal University (CCNU), Wuhan (China)
  3. Univ. of Illinois at Urbana-Champaign, IL (United States)
  4. Univ. of Sao Paulo (Brazil)
Publication Date:
Research Org.:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Org.:
USDOE; National Natural Science Foundation of China (NSFC); Ministry of Science and Technology of the People's Republic of China (MOST)
OSTI Identifier:
1836577
Grant/Contract Number:  
SC0020633; 11521064; 2014CB845404
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 102; Journal Issue: 4; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; heavy-Ion collisions; heavy flavor; collective flow; small systems

Citation Formats

Katz, Roland, Prado, Caio G., Noronha-Hostler, Jacquelyn, and Suaide, Alexandre P. System-size scan of D meson RAA and vn using PbPb, XeXe, ArAr, and OO collisions at energies available at the CERN Large Hadron Collider. United States: N. p., 2020. Web. doi:10.1103/physrevc.102.041901.
Katz, Roland, Prado, Caio G., Noronha-Hostler, Jacquelyn, & Suaide, Alexandre P. System-size scan of D meson RAA and vn using PbPb, XeXe, ArAr, and OO collisions at energies available at the CERN Large Hadron Collider. United States. https://doi.org/10.1103/physrevc.102.041901
Katz, Roland, Prado, Caio G., Noronha-Hostler, Jacquelyn, and Suaide, Alexandre P. Thu . "System-size scan of D meson RAA and vn using PbPb, XeXe, ArAr, and OO collisions at energies available at the CERN Large Hadron Collider". United States. https://doi.org/10.1103/physrevc.102.041901. https://www.osti.gov/servlets/purl/1836577.
@article{osti_1836577,
title = {System-size scan of D meson RAA and vn using PbPb, XeXe, ArAr, and OO collisions at energies available at the CERN Large Hadron Collider},
author = {Katz, Roland and Prado, Caio G. and Noronha-Hostler, Jacquelyn and Suaide, Alexandre P.},
abstractNote = {Here, experimental measurements indicate no suppression (e.g. RpPb ~ 1) but a surprisingly large D meson v2 was measured in pPb collisions. In order to understand these results we use Trento+v-USPhydro+DAB-MOD to make predictions and propose a system size scan at the LHC involving 208PbPb, 129XeXe, 40ArAr, and 16OO collisions. We find that the nuclear modification factor approaches unity as the system size is decreased, but nonetheless, in the 0–10% most central collisions v2{2} is roughly equivalent regardless of system size. These results arise from a rather non-trivial interplay between the shrinking path length and the enhancement of eccentricities in small systems at high multiplicity. Finally, we also find a surprising sensitivity of D mesons v2{2} in 0–10% at pT = 2–10 GeV to the slight deformation of 129Xe recently found at LHC.},
doi = {10.1103/physrevc.102.041901},
journal = {Physical Review C},
number = 4,
volume = 102,
place = {United States},
year = {Thu Oct 01 00:00:00 EDT 2020},
month = {Thu Oct 01 00:00:00 EDT 2020}
}

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