Beam-Energy Dependence of the Directed Flow of Protons, Antiprotons, and Pions in Au+Au Collisions

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dc.citation.firstpage162301en_US
dc.citation.issueNumber16en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber112en_US
dc.contributor.authorSTAR Collaborationen_US
dc.date.accessioned2015-05-15T19:06:39Zen_US
dc.date.available2015-05-15T19:06:39Zen_US
dc.date.issued2014en_US
dc.description.abstractRapidity-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.en_US
dc.identifier.citationSTAR Collaboration. "Beam-Energy Dependence of the Directed Flow of Protons, Antiprotons, and Pions in Au+Au Collisions." <i>Physical Review Letters,</i> 112, no. 16 (2014) American Physical Society: 162301. http://dx.doi.org/10.1103/PhysRevLett.112.162301.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.112.162301en_US
dc.identifier.urihttps://hdl.handle.net/1911/80238en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleBeam-Energy Dependence of the Directed Flow of Protons, Antiprotons, and Pions in Au+Au Collisionsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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