Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1999-06-23
Phys.Rev. C61 (2000) 014604
Physics
Nuclear Physics
Nuclear Theory
15 pages and 6 figures - submitted to PRC
Scientific paper
10.1103/PhysRevC.61.014604
We compute the recoil polarization of the lambda-hyperon and the photon asymmetry for the quasifree photoproduction of kaons in a relativistic impulse-approximation approach. Our motivation for studying polarization observables is threefold. First, polarization observables are more effective discriminators of subtle dynamics than the unpolarized cross section. Second, earlier nonrelativistic calculations suggest an almost complete insensitivity of polarization observables to distortions effects. Finally, this insensitivity entails an enormous simplification in the theoretical treatment. Indeed, by introducing the notion of a ``bound-nucleon propagator'' we exploit Feynman's trace techniques to develop closed-form, analytic expressions for all photoproduction observables. Moreover, our results indicate that polarization observables are also insensitive to relativistic effects and to the nuclear target. Yet, they are sensitive to the model parameters, making them ideal tools for the study of modifications to the elementary amplitude --- such as in the production, propagation, and decay of nucleon resonances --- in the nuclear medium.
Abu-Raddad L. J.
Piekarewicz Jorge
No associations
LandOfFree
Quasifree kaon-photoproduction from nuclei in a relativistic approach 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 Quasifree kaon-photoproduction from nuclei in a relativistic approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasifree kaon-photoproduction from nuclei in a relativistic approach will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-28978