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.

5 pages, 4 figures

References in corpus (7)

• Electromagnetic excitation of the Delta(1232)-resonance
• Electron scattering on $\mathbf{A}=3$ nuclei from quantum Monte Carlo based approaches
• Measurement of the generalized spin polarizabilities of the neutron in the low $Q^2$ region
• Measurement of double-polarization asymmetries in the quasi-elastic ${}^3\overrightarrow{\mathrm{He}}(\vec{\mathrm{e}},{\mathrm{e}}^{\prime }\mathrm{d})$ process
• Transverse electron scattering response function of ${}^3$He with $\Delta$-isobar degrees of freedom
• Frame dependence of 3He transverse (e,e') response functions at intermediate momentum transfers
• Nucleon-Nucleon Scattering with Coupled Nucleon-Delta Channels in Chiral Effective Field Theory