Girish Kumar

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hep-ph2026

Axion-like Particles and Lepton Flavor Violation in Muonic Atoms

Girish Kumar, Alexey A. Petrov

We explore the potential of the Mu2e experiment to probe the lepton-flavor-violating process $I^¼^{-} e^{-} \to e^{-} e^{-}$ in a muonic atom within a simplified axion-like particle (ALP) f…

hep-ph2024

Finite width effects in nonleptonic D-decays

Girish Kumar, Sudheer Muhammad, Alexey A. Petrov

Many analyses of two-body non-leptonic decays of $D$ -mesons rely on flavor SU(3) symmetry relations and fits of experimental data of decays rates to extract the universal transitio…

hep-ph2024

Constraints on light dark sector particles from lifetime difference of heavy neutral mesons

Girish Kumar, Alexey A. Petrov

Heavy meson decays with missing energy in the final state offer interesting avenues to search for light invisible new physics such as dark matter (DM). In this context, we show tha…