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19 papers · 2 filters
Spectator scattering at NLO in non-leptonic B decays: Tree amplitudes
M. Beneke, S. Jager
We compute the 1-loop (alpha_s^2) correction to hard spectator scattering in non-leptonic B decay tree amplitudes. This forms part of the NNLO contribution to the QCD factorization…
Enhanced electroweak penguin amplitude in B-->VV decays
M. Beneke, J. Rohrer, D. Yang
We discuss a novel electromagnetic penguin contribution to the transverse helicity amplitudes in B decays to two vector mesons, which is enhanced by two powers of mB/Lambda relativ…
Supersymmetry Parameter Analysis: SPA Convention and Project
J. A. Aguilar-Saavedra, A. Ali, B. C. Allanach +122
High-precision analyses of supersymmetry parameters aim at reconstructing the fundamental supersymmetric theory and its breaking mechanism. A well defined theoretical framework is…
QCD Corrections to Static Heavy Quark Form Factors
W. Bernreuther, R. Bonciani, T. Gehrmann +4
Interactions of heavy quarks, in particular of top quarks, with electroweak gauge bosons are expected to be very sensitive to new physics effects related to electroweak symmetry br…
Hadronic B decays with QCD factorization
M. Beneke
A brief summary of outstanding theoretical issues and recent results from the QCD factorization approach to exclusive hadronic B decays is provided.
Mixed QCD and Weak Corrections to Production by Quark-Antiquark Annihilation
W. Bernreuther, M. Fuecker, Z. G. Si
We report on our computation of the mixed QCD and weak corrections to including spin effects, in particular on single top spin asymmetries.