TY - GEN
T1 - Deformation and weak decay of Λ hypernuclei
AU - Hagino, K.
AU - Win, Myaing Thi
AU - Nakagawa, Y.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - We use the self-consistent mean-field theory to discuss the ground state and decay properties of Λ hypernuclei. We first discuss the deformation of Λ hy-pernuclei using the relativistic mean-field (RMF) approach. We show that, although most of the hypernuclei have a similar deformation parameter to the core nucleus, the shape of 28Si is drastically altered, from oblately deformed to spherical, if a Λ particle is added to this nucleus. We then discuss the pionic weak decay of neutron-rich Λ hypernuclei using the Skyrme Hartree-Fock + BCS method. We show that, for a given isotope chain, the decay rate increases as a function of mass number, due to the strong neutron-proton interaction.
AB - We use the self-consistent mean-field theory to discuss the ground state and decay properties of Λ hypernuclei. We first discuss the deformation of Λ hy-pernuclei using the relativistic mean-field (RMF) approach. We show that, although most of the hypernuclei have a similar deformation parameter to the core nucleus, the shape of 28Si is drastically altered, from oblately deformed to spherical, if a Λ particle is added to this nucleus. We then discuss the pionic weak decay of neutron-rich Λ hypernuclei using the Skyrme Hartree-Fock + BCS method. We show that, for a given isotope chain, the decay rate increases as a function of mass number, due to the strong neutron-proton interaction.
KW - Mean field theory
KW - Nuclear deformation
KW - Pionic decay
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M3 - Conference contribution
AN - SCOPUS:84894477598
SN - 9814277606
SN - 9789814277600
T3 - Proceedings of the Sendai International Symposium: Strangeness in Nuclear and Hadronic Systems, SENDAI 2008
SP - 260
EP - 265
BT - Proceedings of the Sendai International Symposium
T2 - Sendai International Symposium on Strangeness in Nuclear and Hadronic Systems, SENDAI 2008
Y2 - 14 December 2008 through 18 December 2008
ER -