103 citations · 316 across the 11 of their papers we have counts for
11 papers · 1 filter
Chargino contributions to the CP asymmetry in B -> Phi K(S) decay
D. Chakraverty, E. Gabrielli, K. Huitu +1
We perform a model independent analysis of the chargino contributions to the CP asymmetry in B -> Phi K(S) process. We use the mass insertion approximation method generalized by in…
Effects of Universal Extra Dimensions on Mixing
Debrupa Chakraverty, Katri Huitu, Anirban Kundu
We study contributions coming to from one or more universal extra dimensions (UED) in which all the Standard Model fields can propagate. In the model with a single UED, the…
Heavy quark production via supersymmetric interaction at a neutrino factory
Debrupa Chakraverty, Anindya Datta, Biswarup Mukhopadhyaya
We investigate b-quark production in both charged and neutral current channels through neutrino-nucleon scattering at a neutrino factory, mediated by the lepton flavour violating i…
A nonsupersymmetric resolution of the anomalous muon magnetic moment
Debrupa Chakraverty, Debajyoti Choudhury, Anindya Datta
The recent result from the E821 experiment at BNL on the anomalous magnetic moment of the muon shows a distinct discrepancy with the Standard Model predictions. We calculate the ad…
B-physics constraints on baryon number violating couplings: grand unification or R-parity violation
Debrupa Chakraverty, Debajyoti Choudhury
We investigate the role that baryon number violating interactions may play in phenomenology. Present in various grand unified theories, supersymmetric theories with R-parity vi…
b --> s gamma confronts B-violating scalar couplings: R-parity violating supersymmetry or diquark
Debrupa Chakraverty, Debajyoti Choudhury
We investigate the possible role that baryon number violating Yukawa interactions may take in the inclusive decay . The constraints, derived using the experimental re…
Dispersive Bounds on The Shape Of Lambda_b to Lambda_c l {\bar ν_l} Formfactors
Debrupa Chakraverty, Triptesh De, Binayak Dutta-Roy +1
We derive a theoretically allowed domain for the charge radius and curvature of the Isgur-Wise function describing the decay . Our method uses cro…
Non-relativistic Model for the Semileptonic Λ_b \to Λ_c Decay
Debrupa Chakraverty, Triptesh De, Binayak Dutta-Roy +1
We calculate the decay width for in the frame work of a nonrelativistic quark (NRQ) model of heavy baryons where the light quarks play the role of spectato…
Applicability of Heavy Quark Effective Theory to the Radiative Decay
Debrupa Chakraverty, Triptesh De, Binayak Dutta-Roy +1
In the context of the observed decay the applicability of the Heavy Quark Effective Theory (HQET), treating both b and s as heavy quarks, is examined. We show…
Constraints on a General Higgs Sector from , Mixing and the Parameter
Debrupa Chakraverty, Anirban Kundu
The scalar sector of the Standard Model is extended to include an arbitrary assortment of scalars. In the case where this assignment does not preserve at the tree-level, the…
Effective Theory Approach to SUSY Hadron Spectroscopy
D. Chakraverty, T. De, B. Dutta-Roy +1
Supersymmetric hadrons of the type , and could exist depending on the masses of the gluino and the squarks being in an appropriate range of values. We…