Search for Radiative DsD_s Decays in Belle

Jul 17, 2024
3 pages
Published in:
  • Springer Proc.Phys. 304 (2024) 922-924
  • Published: Jul 17, 2024
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Abstract: (Springer)
In the Standard Model, the physics of charm meson is not expected to have new physics discovery potential because the CP asymmetries and D0D^{0} - D0ˉ\bar{D^0} oscillations are small. It has been pointed out that the c\rightarrow uγ\gamma decays might have some contributions from the non-minimal supersymmetry, which is the new physics scenario. From earlier studies, we noticed Rρ/ωR_{\rho /\omega } could be violated already in the Standard Model framework, while a similar relation for Ds+D_{s}^{+} radiative decays offers a much better test for c\rightarrow uγ\gamma . Here, we present a sensitivity study of the radiative charm decays, Ds+ρ+γD_{s}^{+}\rightarrow \rho ^+ \gamma and Ds+K+γD_{s}^{+} \rightarrow K^{*+} \gamma at the Belle detector. The study assumes the full data set recorded by the Belle detector at the Υ\Upsilon (4S) resonance containing 772 million BBˉB\bar{B} pairs from e+ee^{+}e^{-} collisions produced by the KEKB collider. This study will be the first search for the radiative decays of DsD_s mesons.