Resolved Power Corrections to the Inclusive Decay $\bar B \to X_s \ell^+\ell^-$
Tobias Hurth, Michael Benzke, Michael Fickinger, Sascha Turczyk
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Abstract
We identify the correct power counting of all the variables in the low- window of the inclusive decay within the effective theory SCET if a hadronic mass cut is imposed. Furthermore we analyse the resolved power corrections at the order in a systematic way. As a special feature, the resolved contributions stay nonlocal when the hadronic mass cut is released. Therefore they represent an irreducible uncertainty independent of the hadronic mass cut.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research