Beam-energy Dependence Of The Directed Flow Of Protons, Antiprotons, And Pions In Au+au Collisions.
Contribuinte(s) |
UNIVERSIDADE DE ESTADUAL DE CAMPINAS |
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Data(s) |
01/04/2014
27/11/2015
27/11/2015
|
Resumo |
Rapidity-odd directed flow (v1) measurements for charged pions, protons, and antiprotons near midrapidity (y=0) are reported in sNN=7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV Au+Au collisions as recorded by the STAR detector at the Relativistic Heavy Ion Collider. At intermediate impact parameters, the proton and net-proton slope parameter dv1/dy|y=0 shows a minimum between 11.5 and 19.6 GeV. In addition, the net-proton dv1/dy|y=0 changes sign twice between 7.7 and 39 GeV. The proton and net-proton results qualitatively resemble predictions of a hydrodynamic model with a first-order phase transition from hadronic matter to deconfined matter, and differ from hadronic transport calculations. 112 162301 |
Identificador |
Physical Review Letters. v. 112, n. 16, p. 162301, 2014-Apr. 1079-7114 http://www.ncbi.nlm.nih.gov/pubmed/24815640 http://repositorio.unicamp.br/jspui/handle/REPOSIP/201390 24815640 |
Idioma(s) |
eng |
Relação |
Physical Review Letters Phys. Rev. Lett. |
Direitos |
aberto |
Fonte |
PubMed |
Tipo |
Artigo de periódico |