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Title: Exploring new small system geometries in heavy ion collisions

Abstract

Relativistic heavy ion collisions produce nuclei-sized droplets of quark-gluon plasma whose expansion is well described by viscous hydrodynamic calculations. Over the past half decade, this formalism was also found to apply to smaller droplets closer to the size of individual nucleons, as produced in p + p and p + A collisions. The hydrodynamic paradigm was further tested with a variety of collision species, including p + Au,d + Au, and 3He + Au producing droplets with different geometries. Nevertheless, questions remain regarding the importance of pre-hydrodynamic evolution and the exact medium properties during the hydrodynamic evolution phase, as well as the applicability of alternative theories that argue the agreement with hydrodynamics is accidental. In this study we explore options for new collision geometries including p + O and O + O proposed for running at the Large Hadron Collider, as well as 4He + Au,C + Au,O + Au, and 7,9Be + Au at the Relativistic Heavy Ion Collider.

Authors:
 [1]; ORCiD logo [2];  [3]; ORCiD logo [4];  [5];  [6];  [1];  [1]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Michigan State Univ., East Lansing, MI (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Technische Univ. Darmstadt, Darmstadt (Germany); GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany)
  6. Univ. of Colorado, Boulder, CO (United States); CEA/IPhT/Saclay, F-Orsay (France)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1511257
Alternate Identifier(s):
OSTI ID: 1505004
Report Number(s):
LA-UR-18-31748
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:  
89233218CNA000001; FG02-00ER41152; SC0018117; AC05-00OR22725; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 99; Journal Issue: 4; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic, Nuclear and Particle Physics

Citation Formats

Lim, S. H., Carlson, Joseph Allen, Loizides, C., Lonardoni, Diego, Lynn, J. E., Nagle, J. L., Orjuela Koop, J. D., and Ouellette, J. Exploring new small system geometries in heavy ion collisions. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.99.044904.
Lim, S. H., Carlson, Joseph Allen, Loizides, C., Lonardoni, Diego, Lynn, J. E., Nagle, J. L., Orjuela Koop, J. D., & Ouellette, J. Exploring new small system geometries in heavy ion collisions. United States. doi:10.1103/PhysRevC.99.044904.
Lim, S. H., Carlson, Joseph Allen, Loizides, C., Lonardoni, Diego, Lynn, J. E., Nagle, J. L., Orjuela Koop, J. D., and Ouellette, J. Thu . "Exploring new small system geometries in heavy ion collisions". United States. doi:10.1103/PhysRevC.99.044904.
@article{osti_1511257,
title = {Exploring new small system geometries in heavy ion collisions},
author = {Lim, S. H. and Carlson, Joseph Allen and Loizides, C. and Lonardoni, Diego and Lynn, J. E. and Nagle, J. L. and Orjuela Koop, J. D. and Ouellette, J.},
abstractNote = {Relativistic heavy ion collisions produce nuclei-sized droplets of quark-gluon plasma whose expansion is well described by viscous hydrodynamic calculations. Over the past half decade, this formalism was also found to apply to smaller droplets closer to the size of individual nucleons, as produced in p + p and p + A collisions. The hydrodynamic paradigm was further tested with a variety of collision species, including p + Au,d + Au, and 3He + Au producing droplets with different geometries. Nevertheless, questions remain regarding the importance of pre-hydrodynamic evolution and the exact medium properties during the hydrodynamic evolution phase, as well as the applicability of alternative theories that argue the agreement with hydrodynamics is accidental. In this study we explore options for new collision geometries including p + O and O + O proposed for running at the Large Hadron Collider, as well as 4He + Au,C + Au,O + Au, and 7,9Be + Au at the Relativistic Heavy Ion Collider.},
doi = {10.1103/PhysRevC.99.044904},
journal = {Physical Review C},
number = 4,
volume = 99,
place = {United States},
year = {2019},
month = {4}
}

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This content will become publicly available on April 4, 2020
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