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arXiv · 1202.0760

Exotic mesons with double charm and bottom flavor

Shunsuke Ohkoda·Yasuhiro Yamaguchi·Shigehiro Yasui·Kazutaka Sudoh·Atsushi Hosaka
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Abstract

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.

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Shunsuke Ohkoda, Yasuhiro Yamaguchi, Shigehiro Yasui, Kazutaka Sudoh, Atsushi Hosaka. 2012-07-17. Exotic mesons with double charm and bottom flavor. https://doi.org/10.1103/physrevd.86.034019

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