Publications [#245313] of Steffen A. Bass

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Papers Published
  1. Asakawa, M; Bass, SA; Müller, B; Nonaka, C, Transverse velocity dependence of the proton-antiproton ratio as a signature of the QCD critical point, Physical Review Letters, vol. 101 no. 12 (2008) [doi] .

    Abstract:
    The presence of a critical point in the QCD phase diagram can deform the trajectories describing the evolution of the expanding fireball in the μB-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 (βT) dependence of the proton-antiproton ratio when the fireball passes in the vicinity of the critical point. An unusual βT dependence of the p̄/p ratio in a narrow beam energy window would thus signal the presence of the critical point. © 2008 The American Physical Society.