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Spectator Interactions in Soft-Collinear Effective Theory
Richard J. Hill, Matthias Neubert
Soft-collinear effective theory is generalized to include soft massless quarks in addition to collinear fields. This extension is necessary for the treatment of interactions with t…
Flavor-Singlet B-Decay Amplitudes in QCD Factorization
Martin Beneke, Matthias Neubert
Exclusive hadronic B-meson decays into two-body final states consisting of a light pseudoscalar or vector meson along with an eta or eta' meson are of great phenomenological intere…
Subleading Shape Functions and the Determination of |V_{ub}|
Matthias Neubert
It is argued that the dominant subleading shape-function contributions to the endpoint region of the charged-lepton energy spectrum in B -> X_u l nu decays can be related in a mode…
Two-body modes of B mesons and the CP-b triangle
Matthias Neubert
The study of charmless two-body decays of B mesons is currently one of the hottest topics in B physics. QCD factorization provides the theoretical framework for a systematic analys…
Constraints on Light Bottom Squarks from Radiative B-Meson Decays
Thomas Becher, Stephan Braig, Matthias Neubert +1
The presence of a light b-squark (with mass about 4 GeV) and gluino (with mass about 15 GeV) might explain the observed excess in b-quark production at the Tevatron. Though provoca…
Higher-Order Corrections to QCD Factorization in B->pi K,pi pi Decays
Matthias Neubert, Ben D. Pecjak
The renormalon calculus is used to calculate the terms of order in the perturbative expansions of the Wilson coefficients and hard-scattering kernels entering the…