In-medium reduction of the η' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions

Details In-medium reduction of the η' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions In-medium reduction of the η' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions

2011-02-03

arxiv.org/abs/1102.0785v1

Physics

High Energy Physics

High Energy Physics - Experiment

Proceedings of an invited talk of Robert Vertesi at the HCBM 2010 workshop, Budapest, Hungary. Proceedings of an invited talk

Scientific paper

A reduction of the mass of the \eta'(958) meson may indicate the restoration of the UA(1) symmetry in a hot and dense hadronic matter, corresponding to the return of the 9th, "prodigal" Goldstone boson. We report on an analysis of a combined PHENIX and STAR data set on the intercept parameter of the two-pion Bose-Einstein correlation functions, as measuremed in \sqrt{s_NN} = 200 GeV Au+Au collisions at RHIC. To describe this combined PHENIX and STAR dataset, an in-medium \eta' mass reduction of at least 200 MeV is needed, at the 99.9 % confidence level in a broad model class of resonance multiplicities. Energy, system size and centrality dependence of the observed effect is also discussed.

Affiliated with

Also associated with

No associations

Rating

In-medium reduction of the η' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions 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 In-medium reduction of the η' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-medium reduction of the η' mass in \sqrt{s_NN} = 200 GeV Au+Au collisions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-491027