Exotic mesons with double charm and bottom flavor
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.
Keywords
Cite
@article{arxiv.1202.0760,
title = {Exotic mesons with double charm and bottom flavor},
author = {Shunsuke Ohkoda and Yasuhiro Yamaguchi and Shigehiro Yasui and Kazutaka Sudoh and Atsushi Hosaka},
journal= {arXiv preprint arXiv:1202.0760},
year = {2013}
}
Comments
24 pages, 3 figures