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94 papers · 1 filter
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…
The PAX Toolkit and its Applications at Tevatron and LHC
Steffen Kappler, Martin Erdmann, Ulrich Felzmann +5
At the CHEP03 conference we launched the Physics Analysis eXpert (PAX), a C++ toolkit released for the use in advanced high energy physics (HEP) analyses. This toolkit allows to de…
First Measurement of Charged Current Cross Sections at HERA with Longitudinally Polarised Positrons
H1 Collaboration
Data taken with positrons of different longitudinal polarisation states in collision with unpolarised protons at HERA are used to measure the total cross sections of the charged cu…
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…
Focused-ion-beam milling based nanostencil mask fabrication for spin transfer torque studies
B. Oezyilmaz, G. Richter, N. Muesgens +6
Focused-ion-beam milling is used to fabricate nanostencil masks suitable for the fabrication of magnetic nanostructures relevant for spin transfer torque studies. Nanostencil masks…
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…