Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2005-06-15
Nucl.Phys. A755 (2005) 527-530
Physics
Nuclear Physics
Nuclear Theory
5 pages and 2 figs. Presented at the Baryons-04 Conference (Palaiseau, France, Oct 2004). To appear in Nucl. Phys. A
Scientific paper
10.1016/j.nuclphysa.2005.03.069
Neutron and proton densities in the nuclear periphery are investigated within (p,n) charge-exchange isobar transitions. For this purpose we have developed parameter-free optical potentials with a detailed treatment of the in-medium $t_{\tau}$ part of the effective interaction. Non local coupled-channel Lane equations are solved to obtain the scattering observables. The use of conventional proton and neutron densities significantly underestimates Fermi (forward-angle) cross-sections in agreement with findings by various other groups. However, we have found model-independent densities which provide a remarkable improvement in the description of the quasielastic scattering data.The densities obtained are consistent with recent measurements at CERN in studies of the neutron-to-proton halo factor f(r)=Z$\rho_n/N\rho_p$ with antiprotons. These findings provide an alternative way to investigate the nuclear periphery, and may also help to solve the long-standing puzzle of the underestimated Fermi cross section in (p,n) charge-exchange phenomena.
Arellano H. F.
Love W. G.
No associations
LandOfFree
Nuclear halo structure from quasielastic charge-exchange reactions 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 Nuclear halo structure from quasielastic charge-exchange reactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear halo structure from quasielastic charge-exchange reactions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-5270