Renormalisation group evolution of the shape function g 17 in B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ and B ¯ → X s ℓ + ℓ − $$ \overline{B}\to {X}_s{\ell}^{+}{\ell}^{-} $$ at subleading power

Renormalisation group evolution of the shape function g 17 in B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ and B ¯ → X s ℓ + ℓ − $$ \overline{B}\to {X}_s{\ell}^{+}{\ell}^{-} $$ at subleading power

Abstract We derive and solve the renormalisation-group (RG) equation of the shape function g 17(ω, ω 1; μ), which appears at subleading power in the factorisation of the inclusive decays B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ and B ¯ → X s ℓ + ℓ − $$ \overline{B}\to {X}_s{\ell}^{+}{\ell}^{-}...

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Bibliographic Details
Main Authors: Riccardo Bartocci, Philipp Böer, Tobias Hurth
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:Journal of High Energy Physics
Subjects:
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Factorization
Renormalization Group
Rare Decays
Resummation
Online Access:https://doi.org/10.1007/JHEP04(2025)066
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https://doi.org/10.1007/JHEP04(2025)066

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