Ria Sain

activity

20242026

collaborators

5 papers

hep-ph2026

Probing Light Dark Fermions in $B \to D^{(*)} ℓ X_{inv}$ via Rate Distributions

Lipika Kolay, Soumitra Nandi, Shantanu Sahoo +1

Experimental analyses of the semileptonic decays $B \to D^{(*)} ℓ I^ˉ ½$ typically rely on the assumption that the missing energy originates from a massless neutrino, as predi…

hep-ph2026

$∣ V_{c b} ∣$ determinations from $B ˉ \to D^{(*)} ℓ I^ˉ ½$ decays within the SM and beyond

Wen-Sheng Fang, Syuhei Iguro, Xin-Qiang Li +3

We investigate the $∣ V_{c b} ∣$ determinations from exclusive semi-leptonic $B ˉ \to D^{(*)} ℓ I^ˉ ½$ decays, together with comprehensive fit analyses of the $\bar{B} \to D^{(*…

hep-ph2025

$I^_{b} \to I^^{(*)} I^½ I^ˉ ½$ decays and the recent Belle-II $B^{+} \to K^{+} I^½ I^ˉ ½$ data

Diganta Das, Dargi Shameer, Ria Sain

The Belle-II experiment has recently reported the first measurement of $B^{+} \to K^{+} I^½ I^ˉ ½$ decay which exceeds the Standard Model prediction by approximately 2.7 $I ¨ $ . The deviat…

hep-ph2024

An Imperative study of the angular observables in $I^_{b} \to I^_{c}^{+} (\to I^ I ¨ ^{+}) ℓ^{-} I^ˉ ½_{ℓ}$ decay and probing the footprint of new physics

Soumitra Nandi, Shantanu Sahoo, Ria Sain

We study the four-fold angular distribution of the semileptonic $I^_{b} \to I^_{c}^{+} (\to I^ I ¨ ^{+}) ℓ^{-} I^ˉ ½_{ℓ}$ decay and find out analytical expressions for various asymmetr…

hep-ph2024

Model-independent analysis of new physics effects in $B \to K_{2}^{*} (1430) I^¼^{+} I^¼^{-}$ decay

Juhi Vardani, Ria Sain

Recently, the LHCb Collaboration provided updated measurements for the lepton flavour ratios $R_{K}$ and $R_{K^{*}}$ . The currently observed values align with the predictions of the st…

Probing Light Dark Fermions in B→D(∗)ℓXinv​ via Rate Distributions

∣Vcb​∣ determinations from Bˉ→D(∗)ℓI^ˉ½ decays within the SM and beyond

I^b​→I^(∗)I^½I^ˉ½ decays and the recent Belle-II B+→K+I^½I^ˉ½ data

An Imperative study of the angular observables in I^b​→I^c+​(→I^I¨+)ℓ−I^ˉ½ℓ​ decay and probing the footprint of new physics

Model-independent analysis of new physics effects in B→K2∗​(1430)I^¼+I^¼− decay

Probing Light Dark Fermions in $B \to D^{(*)} ℓ X_{inv}$ via Rate Distributions

$∣ V_{c b} ∣$ determinations from $B ˉ \to D^{(*)} ℓ I^ˉ ½$ decays within the SM and beyond

$I^_{b} \to I^^{(*)} I^½ I^ˉ ½$ decays and the recent Belle-II $B^{+} \to K^{+} I^½ I^ˉ ½$ data

An Imperative study of the angular observables in $I^_{b} \to I^_{c}^{+} (\to I^ I ¨ ^{+}) ℓ^{-} I^ˉ ½_{ℓ}$ decay and probing the footprint of new physics

Model-independent analysis of new physics effects in $B \to K_{2}^{*} (1430) I^¼^{+} I^¼^{-}$ decay