Why the $a_1$ meson might be a difficult messenger for the restoration of chiral symmetry

Details Why the $a_1$ meson might be a difficult messenger for the restoration of chiral symmetry Why the $a_1$ meson might be a difficult messenger for the restoration of chiral symmetry

2007-10-05

arxiv.org/abs/0710.1158v1

Phys.Rev.C78:064910,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 5 figures

Scientific paper

10.1103/PhysRevC.78.064910

We perform a theoretical analysis of the $a_1$ resonance mass spectrum in ultra-relativistic heavy ion collisions within a hadron/string transport approach. Predictions for the $a_1$ yield and its mass distribution are given for the GSI-FAIR and the critRHIC energy regime. The potential of the $a_1$ meson as a signal for chiral symmetry restoration is explored. In view of the latest discussion, we investigate the decay channel $a_1 \to \gamma\pi$ in detail and find a strong bias towards low $a_1$ masses. This apparent mass shift of the $a_1$ if observed in the $\gamma\pi$ channel might render a possible mass shift due to chiral symmetry restoration very difficult to disentangle from the decay kinematics.

Affiliated with

Also associated with

No associations

Rating

Why the $a_1$ meson might be a difficult messenger for the restoration of chiral symmetry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Why the $a_1$ meson might be a difficult messenger for the restoration of chiral symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Why the $a_1$ meson might be a difficult messenger for the restoration of chiral symmetry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-328797