H dibaryon in the QCD sum rule

Details H dibaryon in the QCD sum rule H dibaryon in the QCD sum rule

1994-04-06

arxiv.org/abs/hep-ph/9404221v1

Nucl.Phys. A580 (1994) 445-454

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages 4 uuencoded figures contained

Scientific paper

10.1016/0375-9474(94)90908-3

The QCD sum rule is applied to the H dibaryon and is compared to the flavor non-singlet di-nucleon. We find that the H dibaryon is almost degenerate to the di-nucleon in the $SU(3)_{flavor}$ limit and therefore is not deeply bound as far as th\ e threshold parameter is adjusted not to have a di-nucleon bound state. After introducing the $SU(3)_{f}$ breaking effects, the H dibaryon is found to be bound by $40 MeV$ below the $\Lambda \Lambda$ threshold.

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