$V_{cs}$ from Pure Leptonic Decays of $D_s$ with Radiative Corrections

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dc.creatorWang, Guo-Li
dc.creatorFeng, Tai-Fu
dc.creatorChang, Chao-Hsi
dc.date2001-02-23
dc.date2001-03-02
dc.date.accessioned2026-07-07T03:43:58Z
dc.date.available2026-07-07T03:43:58Z
dc.descriptionThe radiative corrections to the pure leptonic decay $D_s{\longrightarrow} {\ell}{ν}_{\ell}$ up-to one-loop order is presented. We find the virtual photon loop corrections to $D_s{\longrightarrow} τ{ν}_τ$ is negative and the corresponding branching ratio is larger than $3.51\times 10^{-3}$. Considering the possible experimental resolutions, our prediction of the radiative decay $D_s{\longrightarrow} τ{ν}_τγ$ is not so large as others, and the best radiative channel to determine the $V_{cs}$ or $f_{D_s}$ is $D_s{\longrightarrow} μ{ν}_μγ$.
dc.description7 pages, 1 Latex file, 3 PS figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0102293
dc.identifierhttp://arxiv.org/abs/hep-ph/0102293
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/40430
dc.subjectHigh Energy Physics - Phenomenology
dc.title$V_{cs}$ from Pure Leptonic Decays of $D_s$ with Radiative Corrections
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