Contrasting N Delta and N N parity-violating asymmetries in nuclei

Details Contrasting N Delta and N N parity-violating asymmetries in nuclei Contrasting N Delta and N N parity-violating asymmetries in nuclei

2000-07-30

arxiv.org/abs/nucl-th/0007072v1

Nucl.Phys. A690 (2001) 509-534

Physics

Nuclear Physics

Nuclear Theory

26 pages, 20 figures

Scientific paper

10.1016/S0375-9474(00)00706-5

Several perspectives that can be opened by studying the electroexcitation of the delta via parity-violating electron scattering from nuclei are examined, working within the context of the relativistic Fermi gas model. A strong enhancement of the left-right asymmetry in the delta sector compared with that in the quasi-elastic regime is found and the potential to find clear signatures for the axial-vector contributions of the nucleon-to-delta transition to the asymmetry identified at specific low momentum transfer kinematics. Possibilities of probing the deformation of the delta are also explored, and using both the proton and nuclei as targets, the abilitiy to study the asymmetry on neutrons is studied.

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