Decay constants of $P$-wave mesons

Details Decay constants of $P$-wave mesons Decay constants of $P$-wave mesons

2007-05-18

arxiv.org/abs/0705.2621v1

Phys.Lett.B650:15-21,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages,5 tables,version to be published in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2007.05.001

Decay constants of $P$-wave mesons are computed in the framework of instantaneous Bethe-Salpeter method (Salpeter method). By analyzing the parity and possible charge conjugation parity, we give the relativistic configurations of wave functions with definite parity and possible charge conjugation parity. With these wave functions as input, the full Salpeter equations for different $P$-wave states are solved, and the mass spectra as well as the numerical values of wave functions are obtained. Finally we compute the leptonic decay constants of heavy-heavy and heavy-light $^3P_0$, $^3P_1$ and $^1P_1$ states.

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