Transverse Velocity Dependence of the Proton-Antiproton Ratio as a Signature of the QCD Critical Endpoint

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dc.creatorAsakawa, M.
dc.creatorBass, S. A.
dc.creatorMüller, B.
dc.creatorNonaka, C.
dc.date2008-03-17
dc.date2008-09-27
dc.date.accessioned2026-07-07T11:49:08Z
dc.date.available2026-07-07T11:49:08Z
dc.descriptionThe presence of a critical point in the QCD phase diagram can deform the trajectories describing the evolution of the expanding fireball in the $μ_B-T$ phase diagram. If the average emission time of hadrons is a function of transverse velocity, as microscopic simulations of the hadronic freeze-out dynamics suggest, the deformation of the hydrodynamic trajectories will change the transverse velocity ($β_{\rm T}$) dependence of the proton-antiproton ratio when the fireball passes in the vicinity of the critical point. An unusual $β_{\rm T}$-dependence of the $\bar{p}/p$ ratio in a narrow beam energy window would thus signal the presence of the critical point.
dc.descriptionFinal version accepted for publication
dc.identifierhttps://arxiv.org/abs/0803.2449
dc.identifierhttp://arxiv.org/abs/0803.2449
dc.identifierPhys.Rev.Lett.101:122302,2008
dc.identifierdoi:10.1103/PhysRevLett.101.122302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203134
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleTransverse Velocity Dependence of the Proton-Antiproton Ratio as a Signature of the QCD Critical Endpoint
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