Exotic mesons with double charm and bottom flavor
Exotic mesons with double charm and bottom flavor
复制标题
DOI：
10.1103/physrevd.86.034019
复制
发表时间：
2012-02
影响因子：
5
通讯作者：
S. Ohkoda;Y. Yamaguchi;S. Yasui;K. Sudoh;A. Hosaka
中科院分区：
文献类型：
--
作者：
S. Ohkoda;Y. Yamaguchi;S. Yasui;K. Sudoh;A. Hosaka
我们研究具有双重魅力和底味的奇异介子，其夸克构型为\bar{Q}\bar{Q}qq。这种夸克构型没有夸克和反夸克的湮灭过程，因此是真正的奇异态。我们通过考虑由一对重介子组成的分子态来拍摄强子图，例如魅力风味的 DD、DD* 和 D*D*，以及底味的 BB、BB* 和 B*B*。重介子之间的相互作用源自重夸克有效理论。所有分子态均按 I(J^P) 量子数进行分类，并系统地研究直至总角动量 J \leq 2。通过求解耦合通道薛定谔方程，由于一个 π 介子交换的强大张量力，我们发现了各种量子数的束缚态和/或共振态。
We study exotic mesons with double charm and bottom flavor, whose quark configuration is \bar{Q}\bar{Q}qq. This quark configuration has no annihilation process of quark and antiquark, and hence is a genuinely exotic states. We take a hadronic picture by considering the molecular states composed of a pair of heavy mesons, such as DD, DD* and D*D* for charm flavor, and BB, BB* and B*B* for bottom flavor. The interactions between heavy mesons are derived from the heavy quark effective theory. All molecular states are classified by I(J^P) quantum numbers, and are systematically studied up to the total angular momentum J \leq 2. By solving the coupled channel Schrodinger equations, due to the strong tensor force of one pion exchanging, we find bound and/or resonant states of various quantum numbers.