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Leading SU(3) breaking in lightcone distribution amplitudes
Chul Kim, Adam K. Leibovich
The lightcone formalism including SU(3) breaking effects for the light pseudoscalar mesons is studied using soft-collinear effective theory (SCET), where the conformal symmetries n…
Nonperturbative Charming Penguin Contributions to Isospin Asymmetries in Radiative B decays
Chul Kim, Adam K. Leibovich, Thomas Mehen
Recent experimental data on the radiative decays B -> V gamma, where V is a light vector meson, find small isospin violation in B -> K^* gamma while isospin asymmetries in B -> rho…
Probing electroweak physics using B -> XM decays in the endpoint region
Junegone Chay, Chul Kim, Adam K. Leibovich +1
Using soft-collinear effective theory we describe at leading order in 1/m_b all the semi-inclusive hadronic B -> XM decays near the endpoint, where an energetic light meson M recoi…
The color-singlet contribution to e^+ e^- ->J/psi + X at the endpoint
Adam K Leibovich, Xiaohui Liu
Recent observations of the J/psi spectrum produced in e^+e^- collisions at the Upsilon(4S) resonance are in conflict with fixed-order calculations using Non-Relativsitic QCD effect…
Exclusive Semileptonic Decays of B Mesons to Orbitally and Radial Excited D
Massimo Di Pierro, Adam K. Leibovich
In this paper we compute, within in the context of a relativistic quark model, the Isgur-Wise functions for exclusive semileptonic decays, where is any charm…
|V_{ub}| From Semileptonic Decay and b -> s gamma
Adam K. Leibovich
Current errors on |V_{ub}| are dominated by model dependence. For inclusive decays, the model dependence comes from the Fermi motion of the b quark. By combining the endpoint photo…