A. Datta

collaborators

8 papers

hep-ph2026

Massive right-handed neutrinos in $B ˉ \to D^{*} I ¨ X ˉ$ decay

Nilakshi Das, Alakabha Datta, Tejhas Kapoor +2

We explore signatures of a massive right-handed neutrino (RHN) in angular distributions of $B ˉ \to D^{*} (\to D I ¨ ) I ¨ (\to I ¨ I^½_{I ¨} ) X ˉ$ decays, where $X$ is an invisible sta…

hep-ph2026

Exploring new physics in the angular distribution of $B ˉ \to D^{*} (\to D I ¨ ) I ¨ ^{-} (\to V^{-} I^½_{I ¨} ) I^ˉ ½_{I ¨} $

Si-Yuan Liu, Alakabha Datta, Xian-Wei Kang

The decays $B ˉ \to D^{*} I ¨ ^{-} I^ˉ ½_{I ¨} $ provide sensitive probes of new physics in the $b \to c I ¨ I^½$ transition. We discuss the effects of new physics in the deca…

hep-ph2026

Axion-like particles and sterile neutrinos solve the $B \to K ν ν ˉ$ and $B \to π K$ puzzles

Bhubanjyoti Bhattacharya, Alakabha Datta, Girish Kumar +1

The recent measurement of the branching ratio of $B^{+} \to K^{+} + inv$ (where ``inv'' denotes invisible states) by the Belle II collaboration is enhanced relative to the sta…

hep-ph2026

New physics searches via angular distributions of $B ˉ \to D^{*} (\to D I ¨ ) I ¨ (\to ℓ I^½_{I ¨} I^ˉ ½_{ℓ}) I^ˉ ½_{I ¨} $ decays

Bhubanjyoti Bhattacharya, Thomas E. Browder, Alakabha Datta +3

The study of $B ˉ \to D^{*} I ¨ I^ˉ ½_{I ¨} $ angular distribution can be used to obtain information about new physics (or beyond the Standard Model) couplings, which are motivated…

hep-ph2026

The generic basis and flavour non-universal SMEFT

Alakabha Datta, Jean-FranÃ§ois Fortin, Jacky Kumar +3

Whenever an anomaly in the flavour sector appears, analyses are performed examining whether it can be explained by adding a small number of carefully-chosen flavour non-universal f…

hep-ph2025

Distinguishing between Dirac and Majorana neutrinos at FASER

ShivaSankar K. A., Alakabha Datta, Danny Marfatia

Some of the simplest models for the origin of neutrino mass involve right-handed neutrinos (RHNs), which could be either Dirac or Majorana particles - a distinction that has profou…

Massive right-handed neutrinos in Bˉ→D∗I¨Xˉ decay

Exploring new physics in the angular distribution of Bˉ→D∗(→DI¨)I¨−(→V−I^½I¨​)I^ˉ½I¨​

Axion-like particles and sterile neutrinos solve the B→Kννˉ and B→πK puzzles

New physics searches via angular distributions of Bˉ→D∗(→DI¨)I¨(→ℓI^½I¨​I^ˉ½ℓ​)I^ˉ½I¨​ decays

The generic basis and flavour non-universal SMEFT

Distinguishing between Dirac and Majorana neutrinos at FASER

Massive right-handed neutrinos in $B ˉ \to D^{*} I ¨ X ˉ$ decay

Exploring new physics in the angular distribution of $B ˉ \to D^{*} (\to D I ¨ ) I ¨ ^{-} (\to V^{-} I^½_{I ¨} ) I^ˉ ½_{I ¨} $

Axion-like particles and sterile neutrinos solve the $B \to K ν ν ˉ$ and $B \to π K$ puzzles

New physics searches via angular distributions of $B ˉ \to D^{*} (\to D I ¨ ) I ¨ (\to ℓ I^½_{I ¨} I^ˉ ½_{ℓ}) I^ˉ ½_{I ¨} $ decays