We discuss the nonmesonic decay of deformed p-shell hypernuclei. The Nilsson model with angular momentum projection is employed in order to take into account the deformation effects. The nonmesonic decay rate and the intrinsic $\Lambda$ asymmetry parameter decrease as a function of the deformation parameter, while the ratio of the neutron- to proton-induced decay rates increases. We find that the deformation effects change these observables by about 10% for ${}_{\Lambda }^9\mathrm{Be}$ from the spherical limit.

• Received 28 April 2000

DOI:https://doi.org/10.1103/PhysRevC.63.044318