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arXiv · 2312.10450

Endpoint divergences in inclusive $\bar B \to X_s \gamma$

Tobias Hurth·Robert Szafron
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Abstract

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.

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Tobias Hurth, Robert Szafron. 2023-12-16. Endpoint divergences in inclusive $\bar B \to X_s \gamma$. https://arxiv.org/abs/2312.10450

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