Shibasis Roy

activity

20172025

most citedNon-leptonic beauty baryon decays and

C P

-asymmetries based on

S U (3)

-Flavor analysis

21 citations · 74 across the 8 of their papers we have counts for

collaborators

8 papers

hep-ph2025★ 1 cited

$C P$ -violation and $U$ -spin symmetry in four-body bottom baryon decays

Shibasis Roy

In view of the recent observation of $C P$ -violation in bottom baryon decays, we explore $C P$ -asymmetry relations in charmless four-body decays of bottom baryons featuring fully cha…

hep-ph2023

Extracting $γ$ from CP violating decays of bottom baryons

Shibasis Roy, N. G. Deshpande, Anirban Kundu +1

The observation of CP violation in meson decays is a testament to the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing paradigm, and an integral part of the Standard Model (SM). The SM…

hep-ph2021★ 5 cited

Measuring $CP$ violating phase in beauty baryon decays

Rahul Sinha, Shibasis Roy, N. G. Deshpande

One of the outstanding problems in physics is to explain the baryon-anti-baryon asymmetry observed in nature. According to the well-known Sakharov criterion for explaining the obse…

hep-ph2021★ 4 cited

Complete analysis of all $B \to π K$ decays

Anirban Kundu, Sunando Kumar Patra, Shibasis Roy

The Standard Model (SM) predicts that $Δ A_{CP}$ , the difference between the direct CP asymmetries for the modes $B^{+} \to π^{0} K^{+}$ and $B^{0} \to π^{-} K^{+}$ that are related by weak i…

hep-ph2020★ 12 cited

Beauty baryon non-leptonic decays into decuplet baryons and $C P$ -asymmetries based on $S U (3)$ -Flavor analysis

Shibasis Roy, Rahul Sinha, N. G. Deshpande

We consider charmless weak decays of beauty-baryons into decuplet baryons and pseudoscalar mesons in a general framework based on $S U (3)$ -flavor decomposition of the decay amplitud…

hep-ph2019★ 21 cited

Non-leptonic beauty baryon decays and $C P$ -asymmetries based on $S U (3)$ -Flavor analysis

Shibasis Roy, Rahul Sinha, N. G. Deshpande

We consider hadronic weak decays of beauty-baryons into charmless baryons and pseudoscalar mesons in a general framework based on $S U (3)$ decomposition of the decay amplitudes. The…

hep-ph2019★ 10 cited

Radiative $b$ -baryon decays to measure the photon and $b$ -baryon polarization

Luis Miguel García Martín, Brij Jashal, Fernando Martínez Vidal +4

The radiative decays of $b$ -baryons facilitate the direct measurement of photon helicity in $b \to s γ$ transitions thus serving as an important test of physics beyond the Standard M…

hep-ph2017★ 21 cited

Lepton mass effects and angular observables in $Λ_{b} \to Λ (\to p π) ℓ^{+} ℓ^{-}$

Shibasis Roy, Ria Sain, Rahul Sinha

The flavor changing rare decay $B \to K^{*} (\to K π) ℓ^{+} ℓ^{-}$ is one of the most studied modes due to its sensitivity to physics beyond the standard model and several discrepanci…

CP-violation and U-spin symmetry in four-body bottom baryon decays

Extracting γ from CP violating decays of bottom baryons

Measuring CP violating phase in beauty baryon decays

Complete analysis of all B→πK decays

Beauty baryon non-leptonic decays into decuplet baryons and CP-asymmetries based on SU(3)-Flavor analysis

Non-leptonic beauty baryon decays and CP-asymmetries based on SU(3)-Flavor analysis

Radiative b-baryon decays to measure the photon and b-baryon polarization

Lepton mass effects and angular observables in Λb​→Λ(→pπ)ℓ+ℓ−