Diganta Das

activity

20232025

collaborators

3 papers

hep-ph2025

$Λ_{b} \to Λ^{(*)} ν ν ˉ$ decays and the recent Belle-II $B^{+} \to K^{+} ν ν ˉ$ data

Diganta Das, Dargi Shameer, Ria Sain

The Belle-II experiment has recently reported the first measurement of $B^{+} \to K^{+} ν ν ˉ$ decay which exceeds the Standard Model prediction by approximately 2.7 $σ$ . The deviation…

hep-ph2024

Vector leptoquark contributions to lepton dipole moments

Arvind Bhaskar, Diganta Das, Soumyadip Kundu +3

Leptoquarks (LQs) can contribute to the magnetic and electric dipole moments of charged leptons, which the current experiments have measured with good accuracy. We revisit the para…

hep-ph2023

Soft photon corrections in $B \to K^{()} ℓ^{+} ℓ^{-}$ and $Λ_{b} \to Λ^{()} ℓ^{+} ℓ^{-}$ decays

Debajyoti Choudhury, Diganta Das, Jaydeb Das

We calculate QED corrections to the semileptonic decays $H_{1} \to H_{2} ℓ^{+} ℓ^{-}$ where $ℓ = e, μ$ and $H_{1, 2}$ are hadrons. The soft and/or collinear divergences are regulated i…

Λb​→Λ(∗)ννˉ decays and the recent Belle-II B+→K+ννˉ data

Vector leptoquark contributions to lepton dipole moments

Soft photon corrections in B→K(∗)ℓ+ℓ− and Λb​→Λ(∗)ℓ+ℓ− decays

$Λ_{b} \to Λ^{(*)} ν ν ˉ$ decays and the recent Belle-II $B^{+} \to K^{+} ν ν ˉ$ data

Soft photon corrections in $B \to K^{()} ℓ^{+} ℓ^{-}$ and $Λ_{b} \to Λ^{()} ℓ^{+} ℓ^{-}$ decays