ar X iv : n uc l - th / 9 80 60 37 v 1 1 2 Ju n 19 98 Is SU ( 3 )
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چکیده
Tony Thomas presented us with a challenge in setting up this workshop—to make the connection between quark and hadronic degrees of freedom. I have accepted this challenge and will go even further by attempting to make contact between the physics of Tony Thomas and that of Ulf Meissner! My point of contact will be the study of low energy baryon phyics, studied a number of years ago by Tony and his collaborators in the context of the cloudy bag model and examined in recent years by Ulf and his collaborators using the technique of chiral perturbation theory. Let’s begin with some simple baryon phenomenology which was studied in the 1960’s via the quark model, but which has now been updated via SU(3) chiral perturbative studies. In each case the simple quark model picture is reasonably successful but the addition of chiral loops, which are supposed to be essentially model independent, destroys experimental agreement:
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تاریخ انتشار 1998