Exotic mesons with hidden bottom near thresholds
High Energy Physics - Phenomenology
2012-07-18 v3
Abstract
We study heavy hadron spectroscopy near open bottom thresholds. We employ B and B* mesons as effective degrees of freedom near the thresholds, and consider meson exchange potentials between them. All possible composite states which can be constructed from the B and B* mesons are studied up to the total angular momentum J = 0, 1, 2. We consider, as exotic states, isosinglet states with exotic (J,PC) quantum numbers and isotriplet states. We solve numerically the Schrodinger equation with channel-couplings for each state. The masses of twin resonances Zb(10608) and Zb(10653) recently found by Belle are reproduced. We predict several possible bound and/or resonant states in other channels for future experiments.
Cite
@article{arxiv.1111.2921,
title = {Exotic mesons with hidden bottom near thresholds},
author = {Shunsuke Ohkoda and Yasuhiro Yamaguchi and Shigehiro Yasui and Kazutaka Sudoh and Atsushi Hosaka},
journal= {arXiv preprint arXiv:1111.2921},
year = {2012}
}
Comments
27 pages, 2 figure