Beam-Energy Dependence of Directed Flow of Lambda, (Lambda)over-bar, K-+/-, K-s(0), and phi in Au plus Au Collisions

0488722 - ÚJF 2019 RIV US eng J - Journal Article
Adamczyk, L. - Bielčík, J. - Bielčíková, Jana - Chaloupka, P. - Federič, Pavol - Federičová, P. - Harlenderová, A. - Kocmánek, Martin - Kvapil, J. - Lidrych, J. - Rusňák, Jan - Rusňáková, O. - Šaur, Miroslav - Šimko, Miroslav - Šumbera, Michal - Trzeciak, B. A. … Total 353 authors
Beam-Energy Dependence of Directed Flow of Lambda, (Lambda)over-bar, K-+/-, K-s(0), and phi in Au plus Au Collisions.
Physical Review Letters. Roč. 120, č. 6 (2018), č. článku 062301. ISSN 0031-9007. E-ISSN 1079-7114
R&D Projects: GA MŠMT EF16_013/0001569
Institutional support: RVO:61389005
Keywords : STAR * heavy ion collisions
OECD category: Nuclear physics
Impact factor: 9.227, year: 2018

Rapidity-odd directed-flow measurements at midrapidity are presented for Lambda, (Lambda) over bar, K-+/-, K-s(0), and phi at root s(NN) = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV in Au + Au collisions recorded by the Solenoidal Tracker 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 constituent quarks. The pattern of departure from a coalescence-inspired sum rule can be a valuable new tool for probing the collision dynamics.
Permanent Link: http://hdl.handle.net/11104/0283264