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Addendum to “Resolved $1 / m_{b}$ contributions to $\bar{B} \to X_{s, d} ℓ^{+} ℓ^{-}$ and $\bar{B} \to X_{s} γ$ ”

Michael Benzke^1,*, Maria Vittoria Garzelli ^1,†, and Tobias Hurth^2,‡

¹II. Institute for Theoretical Physics, University Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany
²PRISMA+ Cluster of Excellence and Institute for Physics (THEP), Johannes Gutenberg University, D-55099 Mainz, Germany

^*Contact author: michael.benzke@desy.de
^†Contact author: maria.vittoria.garzelli@desy.de
^‡Contact author: tobias.hurth@cern.ch

Phys. Rev. D 113, 076006 – Published 6 April, 2026

DOI: https://doi.org/10.1103/g6ds-ldx4

Abstract

In all previous calculations of the nonlocal subleading contribution to the inclusive penguin decay $\bar{B} \to X_{s} γ$ due to the interference of the electroweak operators $O_{1}^{c} - O_{7 γ}$ the local Voloshin term was subtracted. In view of the ongoing analysis at order $α_{s}$ , we present a calculation of the complete nonlocal contribution which takes into account the high correlation between the uncertainties of the local Voloshin and the nonlocal term of the previous analyses. The new calculation has a high impact on the range of the nonlocal contribution.

Physics Subject Headings (PhySH)

Effective field theory

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References (18)

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Phys. Rev. D 113, 076006– Published 6 April, 2026

Vol. 113, Iss. 7 — 1 April 2026

Received 24 January 2026
Accepted 25 February 2026

DOI: https://doi.org/10.1103/g6ds-ldx4

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

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Addendum to “Resolved $1 / m_{b}$ contributions to $\bar{B} \to X_{s, d} ℓ^{+} ℓ^{-}$ and $\bar{B} \to X_{s} γ$ ”

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Resolved $1 / m_{b}$ contributions to $\bar{B} \to X_{s, d} ℓ^{+} ℓ^{-}$ and $\bar{B} \to X_{s} γ$

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Addendum to “Resolved 1/mb contributions to B¯→Xs,dℓ+ℓ− and B¯→Xsγ”

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Resolved 1/mb contributions to B¯→Xs,dℓ+ℓ− and B¯→Xsγ

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Addendum to “Resolved $1 / m_{b}$ contributions to $\bar{B} \to X_{s, d} ℓ^{+} ℓ^{-}$ and $\bar{B} \to X_{s} γ$ ”

Resolved $1 / m_{b}$ contributions to $\bar{B} \to X_{s, d} ℓ^{+} ℓ^{-}$ and $\bar{B} \to X_{s} γ$