Signatures of the $\Delta$ isobar in spin observables of ${}^3\mathrm{He}$ electrodisintegration

Abstract

The electrodisintegration of ${}^3\mathrm{He}$ is considered focusing on the effects of the $\Delta$ isobar excitation which is treated dynamically on the same footing as nucleons. In the region beyond the quasi-elastic peak the predicted transverse response functions $R_T$ and $R_{T^{\prime }}$ are visibly affected. This leads to sizable $\Delta$ isobar effects for inclusive and exclusive electron polarization asymmetries in particular kinematic regions. A measurement performed in the proposed regime could provide judgment for models of nuclear forces and currents.

Comments: 5 pages, 4 figures