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- W2013342212 abstract "We investigate the relativistic structure of J=1, L=0 heavy quarkonia in the framework of a covariant formulation of light-front dynamics. This formalism enables us to treat in a very transparent way off-energy shell effects as well as relativistic kinematical effects coming from the finite momentum between the quark and antiquark. We apply our formalism to the leptonic decay width of J=1 charmonium and bottomonium S-states. Relativistic corrections are found to be very large in the charm sector (up to about 60 % reduction for ψ′ leptonic decay width) and smaller in the bottomonium sector, but in any case not negligible." @default.
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- W2013342212 date "2000-01-01" @default.
- W2013342212 modified "2023-09-25" @default.
- W2013342212 title "Relativistic structure of heavy quarkonia. Application to their leptonic decays" @default.
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- W2013342212 doi "https://doi.org/10.1016/s0370-2693(99)01436-7" @default.
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