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Spectroscopy ofQbar Qg hybrid mesons |
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| Authors: | T. Kitazoe M. Wada M. Kaburagi M. Kawaguchi T. Morii M. Oka |
| Affiliation: | 1. Department of Physics, Kobe University, Nada, 657, Kobe, Japan 2. College of Liberal Arts, Kobe University, Nada, 657, Kobe, Japan 3. Center for Theoretical Physics, Massachusetts Institute of Technology, 02139, Cambridge, MA, USA |
| Abstract: | Hybrid mesons composed of a quark, an antiquark, and a gluon are studied in the case of heavy quarks. Their masses are calculated with the potential model which can interpret heavy quarkonium spectroscopy. The ground state of the hybrid mesons (cbar cg) and (bbar bg) is found to be almost spherically symmetric, whereas that of (tbar tg) is two-centered as anH 2 + molecule. The (bbar bgleft[ {tbar tg} right]) ground state turns out to have a mass below the (Bbar Bleft[ {Tbar T} right]) threshold. The excited states contain 0??, 1?+ exotic states and 1?? states which may be examined bye + e ? colliders. |
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