Hydrodynamic expansion with the QCD critical point (基研研究会 熱場の量子論とその応用)

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概要

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• The 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 freezeout dynamics suggest, the deformation of the hydrodynamic trajectories will change the transverse velocity (β_T) dependence of the proton-antiproton ratio when the fireball passes in the vicinity of the critical point. An unusual β_T-dependence of the p^^-/p ratio in a narrow beam energy window would thus signal the presence of the critical point.

• 2009-02-20

著者

• Asakawa M.

  Department of Physics, Osaka University

• Bass S.A.

  Department of Physics, Duke University

• Mueller B.

  Department of Physics, Duke University

• 野中 千穗

  名古屋大学

• Bass S.a.

  Department Of Physics Duke University

• Mueller B.

  Department Of Physics Duke University

• Asakawa M.

  Department Of Physics Osaka University

• 野中 千穂

  Department of Physics, Osaka University

関連論文

• Hydrodynamic expansion with the QCD critical point (基研研究会 熱場の量子論とその応用)
• Spectral Functions of Hadrons in Lattice QCD (熱湯の量子論とその応用)
• Nonequilibrium chiral dynamics by the time dependent variational approach with squeezed states(Non-equilibrium Dynamics in the QCD Phase Transitions)

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