The role of the Dirac sea in the quenching of Gamow-Teller strength

Details The role of the Dirac sea in the quenching of Gamow-Teller strength The role of the Dirac sea in the quenching of Gamow-Teller strength

2003-01-24

arxiv.org/abs/nucl-th/0301074v2

Phys.Rev.Lett.91:062501,2003

Physics

Nuclear Physics

Nuclear Theory

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Scientific paper

10.1103/PhysRevLett.91.062501

The issue of Gamow-Teller sum rule in atomic nuclei is reexamined in the
framework of a relativistic description of nuclei. It is shown that the total
Gamow-Teller strength in the nucleon sector is reduced by about 12% as compared
to the prediction of a non-relativistic description. This reduction is due to
the antinucleon degrees of freedom.

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