Chiral Symmetry in Nuclei -- Theoretical Expectations and Hard Facts

Details Chiral Symmetry in Nuclei -- Theoretical Expectations and Hard Facts Chiral Symmetry in Nuclei -- Theoretical Expectations and Hard Facts

2008-02-06

arxiv.org/abs/0802.0786v1

Mod.Phys.Lett.A23:2371-2380,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited Talk at Chiral07, Osaka, Japan, Nov. 13 - 16, 2007

Scientific paper

10.1142/S0217732308029411

It is widely believed that chiral symmetry is restored not only at high temperatures, but also at high nuclear densities. The drop of the order parameter of the chiral phase transition, the chiral condensate, with density has indeed been calculated in various models and is as such a rather robust result. In this talk I point out that the connection of this property with actual observables is far less clear. For this task a good hadronic description of the primary production of hadrons, their propagation inside the nuclear medium, their decay and the propagation of the decay products through the medium to the detector all have to be treated with equal accuracy and weight. In this talk I illustrate with the examples of $\omega$ production and $\pi^0\pi^0$ production how important in particular final state interactions are.

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