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Coulomb gauge approach to (qqg)over-bar hybrid mesons



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Llanes Estrada, Felipe José and General, I. J. and Cotanch, S. R. (2007) Coulomb gauge approach to (qqg)over-bar hybrid mesons. The European Physical Journal C, 51 (2). pp. 347-358. ISSN 1434-6044

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Official URL: http://dx.doi.org/10.1140/epjc/s10052-007-0298-3


An effective Coulomb gauge Hamiltonian, H-eff, is used to calculate the light ( u (u) over barg), strange ( s (s) over barg) and charmed (c (c) over barg) hybrid meson spectra. For the same two parameter H-eff providing glueball masses consistent with lattice results and a good description of the observed u, d, s and c quark mesons, a large-scale variational treatment predicts that the lightest hybrid has J(PC) = 0(++) and mass 2.1 GeV. The lightest exotic 1(-+) state is just above 2.2 GeV, near the upper limit of lattice and flux tube predictions. These theoretical formulations all indicate that the observed 1(-+) pi(1)(1600) and, more clearly, pi(1)(1400) are not hybrid states. The Coulomb gauge approach further predicts that in the strange and charmed sectors, respectively, the ground state hybrids have 1(+-) with masses 2.1 and 3.8 GeV, while the. rst exotic 1( +) states are at 2.4 and 4.0 GeV. Finally, using our hybrid wavefunctions and the Franck-Condon principle, a novel experimental signature is presented to assist heavy hybrid meson searches.

Item Type:Article
Additional Information:

© Springer-Verlag / Societ`a Italiana di Fisica 2007.
Work supported in part by grants FPA2004-02602, 2005-02327, PR27/05-13955-BSCH (Spain) and U. S. DOE Grants DE-FG02 97ER41048 and DE-FG02-03ER41260.

Uncontrolled Keywords:Mit Bag Model, Exotic Meson, Lattice Qcd, 18 Gev/C, Quark, Clover, State, Glue
Subjects:Sciences > Physics
ID Code:23081
Deposited On:10 Oct 2013 18:15
Last Modified:31 Dec 2020 00:01

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