Strange Neutral Currents in Nuclei

Details Strange Neutral Currents in Nuclei Strange Neutral Currents in Nuclei

1995-12-07

arxiv.org/abs/nucl-th/9512012v2

Phys.Rev.C53:2505-2512,1996

Physics

Nuclear Physics

Nuclear Theory

20 pages, RevTeX, 8 postscript figures included via uufiles, Reference added

Scientific paper

10.1103/PhysRevC.53.2505

We examine the effects on the nuclear neutral current Gamow-Teller (GT) strength of a finite contribution from a polarized strange quark sea. We perform nuclear shell model calculations of the neutral current GT strength for a number of nuclei likely to be present during stellar core collapse. We compare the GT strength when a finite strange quark contribution is included to the strength without such a contribution. As an example, the process of neutral current nuclear de-excitation via $\nu {\overline{\nu}}$ pair production is examined for the two cases.

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