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LARGE-N(C) QCD AND 1/N(C) CORRECTIONS TO BARYON OBSERVABLES
被引:7
|作者:
WAKAMATSU, M
机构:
[1] Department of Physics, Faculty of Science, Osaka University, Toyonaka, Osaka
关键词:
D O I:
10.1016/0370-2693(94)91074-X
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
Recently, Dashen and Manohar have derived a set of consistency conditions that must be satisfied by large-N(c) QCD, which enables them to give quite a general proof to that some of the large-N(c) spin-flavor symmetry relations for baryon observables are violated only at order 1/N(c)2. We try to clarify not only the power but also the limitation of their model-independent approach through a comparative analysis of 1/N(c) corrections to baryon observables in three simple effective models of QCD. We then advocate a viewpoint that the N(c) --> infinity limit and the 1/N(c) expansion framework should be clearly distinguished, because the former has little to do with our real world.
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页码:425 / 429
页数:5
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