Study of Radiative Leptonic D Meson Decays

Details Study of Radiative Leptonic D Meson Decays Study of Radiative Leptonic D Meson Decays

2000-12-06

arxiv.org/abs/hep-ph/0012066v2

Mod.Phys.Lett. A15 (2000) 2087-2104

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 6 Figures, LaTex file, a reference added, to be published in Mod. Phys. Lett. A

Scientific paper

10.1142/S021773230000267X

We study the radiative leptonic $D$ meson decays of $D^+_{(s)}\to \l^+\nu_{\l}\gamma$ ($\l=e,\mu,\tau$), $D^0\to \nu\bar{\nu}\gamma$ and $D^0\to \l^+\l^-\gamma$ ($l=e,\mu$) within the light front quark model. In the standard model, we find that the decay branching ratios of $D^+_{(s)}\to e^+\nu_e\gamma$, $D^+_{(s)}\to\mu^+\nu_{\mu}\gamma$ and $D^+_{(s)}\to\tau^+\nu_{\tau}\gamma$ are $6.9\times 10^{-6}$ ($7.7\times 10^{-5}$), $2.5\times 10^{-5}$ ($2.6\times 10^{-4}$), and $6.0\times 10^{-6}$ ($3.2\times 10^{-4}$), and that of $D^0\to\l^+\l^-\gamma$ ($\l=e,\mu$) and $D^0\to\nu\bar{\nu}\gamma$ are $6.3\times 10^{-11}$ and $2.7\times 10^{-16}$, respectively.

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