287 citations · 3.8k across the 126 of their papers we have counts for
8 papers · 1 filter
The B -> pi K Puzzle and New Physics
Seungwon Baek, Philippe Hamel, David London +2
The present B -> pi K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B -> pi K measurem…
Vacuum Stability in Split Susy and Little Higgs Models
Alakabha Datta, Xinmin Zhang
We study the stability of the effective higgs potential in the split supersymmetry and Little Higgs models. In particular, we study the effects of higher dimensional operators in t…
A Measurement of gamma from the Decays Bd(t) -> D(*)+ D(*)- and Bd -> Ds(*)+ D(*)-
Justin Albert, Alakabha Datta, David London
Recently, it was proposed to use measurements of Bd(t) -> D(*)+ D(*)- and Bd -> Ds(*)+ D(*)- decays to measure the CP phase gamma. In this paper, we present the extraction of gamma…
Getting SM and New Physics CP phases from Decays
Alakabha Datta
A method to extract Standard Model(SM) CP phases involving B decays is presented. The method involves a pair of decays where one decay receives a significant penguin cont…
Extracting beta and the new D_{sJ} resonances
Alakabha Datta
The three body decays may be used to measure both and . Crucial to the measurement is the resonant contribution to…
Methods for Measuring New-Physics Parameters in B Decays
Alakabha Datta, Maxime Imbeault, David London +3
Recently, it was argued that new-physics (NP) effects in B decays can be approximately parametrized in terms of a few quantities. As a result, CP violation in the system allows…
Measuring New-Physics Parameters in B Penguin Decays
Alakabha Datta, David London
We examine new-physics (NP) effects in B decays with large b -> s penguin amplitudes. Decays involving b -> d penguins are assumed to be unaffected. We consider a model-independent…
Obtaining CKM Phase Information from B Penguin Decays
Alakabha Datta, David London
We discuss a method for extracting CP phases from pairs of B decays which are related by flavor SU(3). One decay (B0 -> M1 M2) receives a significant bbar -> dbar penguin contribut…