Exotic meson-meson molecules and compact four-quark states
Exotic meson-meson molecules and compact four-quark states
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DOI：
10.1103/physrevd.79.074010
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发表时间：
2009-03
影响因子：
5
通讯作者：
J. Vijande;J. Vijande;A. Valcarce;N. Barnea;N. Barnea
中科院分区：
文献类型：
--
作者：
J. Vijande;J. Vijande;A. Valcarce;N. Barnea;N. Barnea
本文用不同的标准非相对论夸克-夸克势精确计算了S波和P波QQ <$n态。我们详细探讨的魅力和底部部门寻找绑定状态，可以在现有的设施进行测量。针对文献中有时预测的四夸克态的扩散，我们发现少数候选者是稳定的。我们分析了它们的性质，以区分紧凑和分子状态。可能的衰变模式进行了讨论。
We present an exact calculation of S and P wave QQ¯¯ n states using different standard nonrelativistic quark–quark potentials. We explore in detail the charm and bottom sectors looking for bound states that could be measured within existing facilities. Against the proliferation of four–quark states sometimes predicted in the literature, we found a small number of candidates to be stable. We analyze their properties in a trial to distinguish between compact and molecular states. Possible decay modes are discussed.