Large N c QCD versus the quark model

被引:0
|
作者
Semay, C. [1 ]
Buisseret, F. [1 ]
Stancu, F. [2 ]
Matagne, N. [2 ]
机构
[1] Univ Mons, Grp Phys Nucl Theor, BE-7000 Mons, Belgium
[2] Univ Liege, Inst Phys B5, B-4000 Liege, Belgium
关键词
Quark Model; Strange Quark; String Tension; Constituent Quark; Regge Trajectory;
D O I
10.1007/s00601-008-0267-x
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A connection is established between the results of a potential model with constituent quarks and the 1/N (c) expansion mass formula used in the description of strange and non-strange baryon resonances. It is shown that a remarkable compatibility exists between the two methods. They predict values for the SU(3)-breaking mass terms which are in good agreement with each other. Strange and non-strange baryons are shown to exhibit Regge trajectories with an equal slope, but with an intercept depending on the strangeness. Both approaches also agree on the existence of a single good quantum number labeling the baryons within a given Regge trajectory.
引用
收藏
页码:103 / 106
页数:4
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