Suman Kumbhakar

activity

20182020

collaborators

10 papers

hep-ph2020

New physics in $b \to s e^{+} e^{-}$ : A model independent analysis

Ashutosh Kumar Alok, Suman Kumbhakar, Jyoti Saini +1

The lepton universality violating flavor ratios $R_{K} / R_{K^{*}}$ indicate new physics either in $b \to s μ^{+} μ^{-}$ or in $b \to s e^{+} e^{-}$ or in both. If the new physics is only $b \to…

hep-ph2020

Signatures of complex new physics in $b \to c τ ν ˉ$ transitions

Suman Kumbhakar

The anomalies in the measurements of $R_{D}$ and $R_{D^{*}}$ continue to provide motivation for physics beyond the Standard Model. In this work, we assume the new physics Wilson coeffi…

hep-ph2020

New Physics solutions for $b \to c τ ν ˉ$ anomalies after Moriond 2019

Suman Kumbhakar, Ashutosh Kumar Alok, Dinesh Kumar +1

At Moriond 2019, Belle collaboration has announced new measurements on the flavour ratios $R_{D} - R_{D^{*}}$ which are consistent with their Standard Model predictions within $1.2 σ$ .…

hep-ph2019

A global fit to $b \to c τ ν ˉ$ anomalies after Moriond 2019

Suman Kumbhakar, Ashutosh Kumar Alok, Dinesh Kumar +1

At Moriond 2019, Belle collaboration announced their new measurements on $R_{D}$ and $R_{D^{*}}$ which are in agreement with their Standard Model (SM) predictions within $1.2 σ$ . After…

hep-ph2019

Implication of $R_{D^{(*)}}$ anomalies on semileptonic decays of $Σ_{b}$ and $Ω_{b}$ baryons

N Rajeev, Rupak Dutta, Suman Kumbhakar

The flavor changing decays of heavy bottom quarks to the corresponding lighter quarks ( $u$ , $c$ and $s$ ) in various $B$ -meson decays via charged current and neutral current semilep…

hep-ph2019

Resolving $R_{D}$ and $R_{D^{*}}$ anomalies

Suman Kumbhakar, Ashutosh Kumar Alok, Dinesh Kumar +1

The current world averages of the ratios $R_{D^{(*)}}$ are about $4 σ$ away from their Standard Model prediction. These measurements indicate towards the violation of lepton flavor…

New physics in b→se+e−: A model independent analysis

Signatures of complex new physics in b→cτνˉ transitions

New Physics solutions for b→cτνˉ anomalies after Moriond 2019

A global fit to b→cτνˉ anomalies after Moriond 2019

Implication of RD(∗)​ anomalies on semileptonic decays of Σb​ and Ωb​ baryons

Resolving RD​ and RD∗​ anomalies

New physics in $b \to s e^{+} e^{-}$ : A model independent analysis

Signatures of complex new physics in $b \to c τ ν ˉ$ transitions

New Physics solutions for $b \to c τ ν ˉ$ anomalies after Moriond 2019

A global fit to $b \to c τ ν ˉ$ anomalies after Moriond 2019

Implication of $R_{D^{(*)}}$ anomalies on semileptonic decays of $Σ_{b}$ and $Ω_{b}$ baryons

Resolving $R_{D}$ and $R_{D^{*}}$ anomalies