Enhancement of parity violating mixing in halo nuclei and the problem of neutron weak parity nonconserving potential constant

Journal Article · Wed Dec 01 04:00:00 EST 1999 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.60.064615· OSTI ID:20218011

Hussein, M S ^[1]; Vorov, O K ^[1]; Kerman, A K ^[2]

---

1. Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970 Sao Paulo, SP, (Brazil)
2. Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

We consider the parity nonconserving (PNC) mixing in the ground state of exotic (halo) nuclei caused by the PNC weak interaction between outer neutron and nucleons within the nuclear interior. For the nucleus {sup 11}Be as an example of a typical nucleus with a neutron halo, we use an analytical model for the external neutron wave functions to estimate the scale of the PNC mixing. The amplitude of the PNC mixing in the halo state is found to be an order of magnitude bigger than that of typical PNC mixing between the ''normal'' nuclear states in nearby nuclei. The enhanced PNC mixing in a halo cloud is proportional to the neutron weak PNC potential constant g{sub n}{sup W} only. (c) 1999 The American Physical Society.

• OSTI ID: 20218011
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 60; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NEUTRON REACTIONS
NUCLEAR HALOS
P INVARIANCE
PARITY
THEORETICAL DATA
WAVE FUNCTIONS
WEAK INTERACTIONS