Shunsuke Ohkoda, Yasuhiro Yamaguchi, Shigehiro Yasui, Kazutaka Sudoh, Atsushi Hosaka
We study genuinely exotic mesons with double charm and bottom flavor. 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. For the two-body problem, we numerically solve the coupled
channel Schr\"odinger equations. We find the bound and/or resonant states for
many quantum numbers. Some of them are new states which are not predicted by
the tetraquark picture.
View original:
http://arxiv.org/abs/1202.0760
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