SELF-ENERGY IN THE BAG MODEL |
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| Authors: | X H YANG A K Kerman |
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| Institution: | 1. Institute of Theoretical Physics, Physics Department, Peking University, Beijing, China;
2. Center for Theoretical Physics, Laboratory for Nuclear Sciehce and Department of Physics, Massachusetts Institute of Technology Cambridye, MA 00139, U.S.A. |
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| Abstract: | Based on the many-body theory of confined quarks and gluonsl], the ultraviolet divergence of the self energy in the bag model is discussed. It is shown that for massless quark the self energy is finite and it is 1ogarithmically divergent for massive quark. The numerical calculation is performed for m=0 and m=1.0(in unit 1/R). The self energy has important effects on the bag model and changes the parameters in this model considerably. Furtherstudy of selfenergy and mass renormalization is necessary. |
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