Strong and electromagnetic decays for excited heavy mesons
classification
✦ hep-ph
keywords
heavyelectromagneticexcitedmesonspionicquarktransitionsamount
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We discuss a model for heavy mesons where the light quark (u or d) moves in the colour electric field from a heavy quark (c or b) placed in the center of the bag. We calculate energy spectra for pionic and photonic transitions from excited states. The transition amplitudes and the branching ratios between electromagnetic and pionic transitions compares favorable with the limited amount of known experimental data.
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Cited by 1 Pith paper
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Radiative decay of heavy-light mesons from lattice QCD
Lattice QCD on physical-pion-mass ensembles yields coupling constants g_D*+D+gamma = -0.204(22) GeV^-1, g_D*0D0gamma = 1.73(37) GeV^-1, and g_Ds*+Ds+gamma = -0.120(14) GeV^-1, with corresponding decay widths.
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