BINDING-ENERGIES OF THE BARYONS AND DIHYPERON IN THE NONRELATIVISTIC QUARK-MODEL WITH MESON EXCHANGE

被引：9

作者：

AIZAWA, N

HIRATA, M

机构：

来源：

PROGRESS OF THEORETICAL PHYSICS | 1991年 / 86卷 / 02期

关键词：

D O I：

10.1143/PTP.86.429

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have calculated the baryon and dihyperon masses in the non-relativistic quark model with the pseudoscalar nonet and sigma-meson exchange potential. The flavor SU(3) symmetry breaking is taken into account both in the Hamiltonian and in quark wave functions. We have obtained the H-dihyperon binding energy ranges 54-70 MeV and 18-27 MeV below the LAMBDA-LAMBDA threshold for the strength of the linear confinement potential 2.0 fm-2 and 3.0 fm-2, respectively. The range of the binding energy has its origin in the choice of the root mean square radius of bare proton (0.4-0.5 fm). The mass spectra of octet and decuplet baryons can be reproduced within the errors of a couple of percents.

引用

页码：429 / 441

页数：13

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