Effect of H^\pm on D^\pm_s\to μ^\pmνand D^\pm_s\to τ^\pmν

Details Effect of H^\pm on D^\pm_s\to μ^\pmνand D^\pm_s\to τ^\pmν Effect of H^\pm on D^\pm_s\to μ^\pmνand D^\pm_s\to τ^\pmν

2003-08-26

arxiv.org/abs/hep-ph/0308260v1

Prog.Theor.Phys. 111 (2004) 295-299

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 1 figure

Scientific paper

10.1143/PTP.111.295

We investigate the effect of a charged Higgs boson (H^\pm) on the decays D^\pm_s\to \mu^\pm\nu and D^\pm_s\to \tau^\pm\nu, which will be measured with high precision at forthcoming CLEO-c. We show that a H^\pm can suppress the branching ratios by 10% \to 15% from the Standard Model prediction, and we emphasize that such contributions should not be overlooked when comparing lattice calculations of f_{D_s} to the values obtained from these decays.

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