346 citations · 3.7k across the 80 of their papers we have counts for
4 papers · 1 filter
Photon polarization from helicity suppression in radiative decays of polarized Lambda_b to spin-3/2 baryons
G. Hiller, M. Knecht, F. Legger +1
We give a general parameterization of the Lambda_b --> Lambda(1520) gamma decay amplitude, applicable to any strange isosinglet spin-3/2 baryon, and calculate the branching fractio…
Photon helicity in Lambda_b --> p K gamma decays
Federica Legger, Thomas Schietinger
Radiative decays of polarized Lambda_b baryons represent an attractive possibility to measure the helicity of the photon emitted in the b --> s gamma quark transition and thus to s…
Probing photon helicity in radiative B decays via charmonium resonance interference
Mathias Knecht, Thomas Schietinger
We investigate a new method to probe the helicity of the photon emitted in the b -> s gamma transition. The method relies on the observation of interference effects between two res…
Using kaon regeneration to probe the quark mixing parameter cos(2 beta) in B --> psi K decays
Helen R. Quinn, Thomas Schietinger, Joao P. Silva +1
We suggest a novel method to determine the sign of cos(2 beta) in the decays B --> psi K, by creating interference between KL and KS final states via ``regeneration,'' that is prop…