570 citations · 3.8k across the 42 of their papers we have counts for
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The Phenomenology of Enhanced b->sg
Alexander L. Kagan
Potential hints for New Physics enhanced b -> sg dipole operators are reviewed. Implications for inclusive kaon spectra, and corrresponding search strategies are discussed. Remarka…
QCD Anatomy of B -> X_s gamma Decays
A. L. Kagan, M. Neubert
We present an updated next-to-leading order analysis of the B -> X_s gamma branching ratio and photon spectrum, including consistently the effects of Fermi motion in the heavy-quar…
Z-induced FCNCs and their effects on Neutrino Oscillations
Sven Bergmann, Alex Kagan
Adding singlet neutrinos to the standard model spectrum in general gives rise to Z-induced flavor-changing neutral currents. We study the impact of these currents on matter-induced…
Direct CP Violation in B -> X_s gamma Decays as a Signature of New Physics
A. L. Kagan, M. Neubert
We argue that the observation of a sizable direct CP asymmetry A_{CP} in the inclusive decays B -> X_s gamma would be a clean signal of New Physics. In the Standard Model, A_{CP} c…