Heavy baryons in a quark model

被引：416

作者：

Roberts, W. ^{[1
]}

Pervin, Muslema ^{[2
]}

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[2] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2008年 / 23卷 / 19期

关键词：

heavy baryon; quark model;

D O I：

10.1142/S0217751X08041219

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A quark model is applied to the spectrum of baryons containing heavy quarks. The model gives masses for the known heavy baryons that are in agreement with experiment, but for the doubly-charmed baryon Xi(cc), the model prediction is too heavy. Mixing between the Xi(Q) and Xi(Q)' states is examined and is found to be small for the lowest lying states. In contrast with this, mixing between the Xi(bc) and Xi(bc)' states is found to be large, and the implication of this mixing for properties of these states is briefly discussed. We also examine heavy-quark spin-symmetry multiplets, and find that many states in the model can be placed in such multiplets. We compare our predictions with those of a number of other authors.

引用

页码：2817 / 2860

页数：44

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