PoS - Proceedings of Science
Volume 445 - 21st Conference on Flavor Physics and CP Violation (FPCP2023) - Rare decays of hadrons and leptons
Endpoint divergences in inclusive $\bar B \to X_s \gamma$
T. Hurth* and R. Szafron
Full text: pdf
Pre-published on: September 22, 2023
Published on: November 14, 2023
The subleading so-called resolved contributions represent the largest uncertainty in the inclusive decay
mode $\bar B \to X_s \gamma$. However there had been no complete proof of factorization of these subleading contributions. This failure of factorisation can be traced back to endpoint divergences and cured by recently proposed refactorisation techniques.
DOI: https://doi.org/10.22323/1.445.0006
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