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Phys. Rev. C 63, 044318 (2001) [6 pages]

Role of deformation in the nonmesonic decay of light hypernuclei

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K. Hagino* and A. Parreño
Institute for Nuclear Theory, Department of Physics, University of Washington, Seattle, Washington 98195

Received 28 April 2000; published 19 March 2001

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 Λ 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 Λ9Be from the spherical limit.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.63.044318
DOI:
10.1103/PhysRevC.63.044318
PACS:
21.80.+a, 21.60.Cs, 13.75.Ev, 25.80.Pw

*Present address: Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan.

Present address: Department Estructura i Constituents de la Materia, Facultat de Fisica, Diagonal 647, E-08028 Barcelona, Spain.