η- and η'-mesic nuclei and U_A(1) anomaly at finite density

Details η- and η'-mesic nuclei and U_A(1) anomaly at finite density η- and η'-mesic nuclei and U_A(1) anomaly at finite density

2006-06-26

arxiv.org/abs/nucl-th/0606052v2

Phys.Rev.C74:045203,2006

Physics

Nuclear Physics

Nuclear Theory

10 pages, 7 figures, a few references and comments are added, published in PRC

Scientific paper

10.1103/PhysRevC.74.045203

We discuss theoretically the possibility of observing the bound states of the \eta and \eta'(958) mesons in nuclei. We apply the NJL model to study the \eta and \eta' meson properties at finite density and calculate the formation cross sections of the \eta and \eta' bound states with the Green function method for (\gamma,p) reaction. We also discuss the experimental feasibility at photon facilities like SPring-8. The contributions due to the \omega meson production are also included to obtain the realistic (\gamma,p) spectra. We conclude that we can expect to observe resonance peaks in (\gamma,p) spectra for the formation of meson bound states and we can deduce new information on \eta and \eta' properties at finite density. These observations are believed to be essential to know the possible mass shift of \eta' and deduce new information on the effective restoration of the U_A(1) anomaly in the nuclear medium.

Affiliated with

Also associated with

No associations

Rating

η- and η'-mesic nuclei and U_A(1) anomaly at finite density 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 η- and η'-mesic nuclei and U_A(1) anomaly at finite density, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and η- and η'-mesic nuclei and U_A(1) anomaly at finite density will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-400389