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Chiral symmetries in nuclear physics
- D. Zschiesche, P. Papazoglou, W. Greiner
- PhysicsHNPS Proceedings
- 12 June 2000
In this report the theoretical concepts of a chirally symmetric meson field theory are reviewed and an overview of the most relevant applications in nuclear physics is given. This includes a unified…
Nuclei in a chiral SU(3) model
- P. Papazoglou, D. Zschiesche, S. Schramm, J. Schaffner-Bielich, H. Stocker, W. Greiner
- Physics
- 26 June 1998
Nuclei can be described satisfactorily in a nonlinear chiral SU(3)-framework, even with standard potentials of the linear $\sigma$-model. The condensate value of the strange scalar meson is found to…
Dynamical phase trajectories for relativistic nuclear collisions
- I. Arsene, L. Bravina, D. Zschiesche
- Physics
- 15 September 2006
Central collisions of gold nuclei are simulated by several existing models and the central net baryon density {rho} and the energy density {epsilon} are extracted at successive times for beam kinetic…
(3+1)-dimensional hydrodynamic expansion with a critical point from realistic initial conditions
- J. Steinheimer, M. Bleicher, H. Petersen, S. Schramm, H. Stocker, D. Zschiesche
- Physics
- 1 October 2007
We investigate a (3+1)-dimensional hydrodynamic expansion of the hot and dense system created in head-on collisions of Pb+Pb/Au+Au at beam energies from 5 to 200 GeV/nucleon. An equation of state is…
Neutron Star Properties in a Chiral SU(3) Model
- M. Hanauske, D. Zschiesche, S. Pal, S. Schramm, H. Stocker, W. Greiner
- Physics
- 2 September 1999
We investigate various properties of neutron star matter within an effective chiral SU(3)L × SU(3)R model. The predictions of this model are compared with a Walecka-type model. It is demonstrated…
Dense quarks, and the fermion sign problem, in a SU(N) matrix model
- A. Dumitru, R. Pisarski, D. Zschiesche
- Physics
- 30 May 2005
We study the effect of dense quarks in a SU(N) matrix model of deconfinement. For three or more colors, the quark contribution to the loop potential is complex. After adding the charge conjugate…
Cold, dense nuclear matter in a SU(2) parity doublet model
- D. Zschiesche, L. Tolos, J. Schaffner-Bielich, R. Pisarski
- Physics
- 17 August 2006
We study dense nuclear matter and the chiral phase transition in a SU(2) parity doublet model at zero temperature. The model is defined by adding the chiral partner of the nucleon, the N{sup '}, to…
Effects of Dirac sea polarization on hadronic properties: A chiral SU(3) approach
- A. Mishra, K. Balazs, D. Zschiesche, S. Schramm, H. Stocker, W. Greiner
- Physics
- 22 August 2003
The effect of vacuum fluctuations on the in-medium hadronic properties is investigated using a chiral SU(3) model in the nonlinear realization. The effect of the baryon Dirac sea is seen to modify…
Collective Flow Signals the Quark-Gluon Plasma
- E. Bratkovskaya, M. Bleicher, H. Stöcker
- Physics
- 21 March 2005
A critical discussion of the present status of the CERN experiments on hadron collective flow is given. We emphasize the importance of the flow excitation function from 1 to 50 A·GeV: here the…
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