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Title: Beam-Energy Dependence of Directed Flow of Λ, $$\bar{Λ}$$, K ±, K$$0\atop{s}$$ and Φ in Au+Au Collisions

Here, rapidity-odd directed flow measurements at midrapidity are presented for Λ, $$\bar{Λ}$$, K ±, K$$0\atop{s}$$ and Φ at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV in Au+Au collisions recorded by the STAR detector at the Relativistic Heavy Ion Collider. These measurements greatly expand the scope of data available to constrain models with differing prescriptions for the equation of state of quantum chromodynamics. Results show good sensitivity for testing a picture where flow is assumed to be imposed before hadron formation and the observed particles are assumed to form via coalescence of 3 constituent quarks. Lastly, the pattern of departure from a coalescence-inspired sum-rule can be a valuable new tool for probing the collision dynamics.
Authors:
 [1]
  1. AGH University of Science and Technology, FPACS (Poland). et al.
Publication Date:
Report Number(s):
BNL-114723-2017-JA; BNL-203293-2018-JAAM
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: PO 004; KB0202012
Grant/Contract Number:
SC0012704; AC02-05CH11231
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 6; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Science Foundation (NSF)
Contributing Orgs:
STAR Collaboration
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic Heavy Ion Collider; collective flow; particle & resonance production; quark-gluon plasma; relativistic heavy-ion collisions
OSTI Identifier:
1419709
Alternate Identifier(s):
OSTI ID: 1413944; OSTI ID: 1425132; OSTI ID: 1435121

Adamczyk, L. Beam-Energy Dependence of Directed Flow of Λ, $\bar{Λ}$, K±, K$0\atop{s}$ and Φ in Au+Au Collisions. United States: N. p., Web. doi:10.1103/PhysRevLett.120.062301.
Adamczyk, L. Beam-Energy Dependence of Directed Flow of Λ, $\bar{Λ}$, K±, K$0\atop{s}$ and Φ in Au+Au Collisions. United States. doi:10.1103/PhysRevLett.120.062301.
Adamczyk, L. 2018. "Beam-Energy Dependence of Directed Flow of Λ, $\bar{Λ}$, K±, K$0\atop{s}$ and Φ in Au+Au Collisions". United States. doi:10.1103/PhysRevLett.120.062301.
@article{osti_1419709,
title = {Beam-Energy Dependence of Directed Flow of Λ, $\bar{Λ}$, K±, K$0\atop{s}$ and Φ in Au+Au Collisions},
author = {Adamczyk, L.},
abstractNote = {Here, rapidity-odd directed flow measurements at midrapidity are presented for Λ, $\bar{Λ}$, K±, K$0\atop{s}$ and Φ at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV in Au+Au collisions recorded by the STAR detector at the Relativistic Heavy Ion Collider. These measurements greatly expand the scope of data available to constrain models with differing prescriptions for the equation of state of quantum chromodynamics. Results show good sensitivity for testing a picture where flow is assumed to be imposed before hadron formation and the observed particles are assumed to form via coalescence of 3 constituent quarks. Lastly, the pattern of departure from a coalescence-inspired sum-rule can be a valuable new tool for probing the collision dynamics.},
doi = {10.1103/PhysRevLett.120.062301},
journal = {Physical Review Letters},
number = 6,
volume = 120,
place = {United States},
year = {2018},
month = {2}
}