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arXiv · hep-ph/9608389

Determination of the HQET Parameters from the $B \to X_sγ$ Decay

Hsiang-nan Li·Hoi-Lai Yu
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Abstract

We combine the resummations for radiative corrections and for the heavy quark expansion to study the inclusive radiative decay $B \to X_sγ$. The infrared renormalon ambiguity is also taken into account. Including both theoretical and experimental uncertainties, we determine the allowed domain for the HQET parameters ${\bar Λ}$ and $λ_1$ centered at ${\bar Λ}=0.65$ GeV and $λ_1=-0.71$ GeV$^2$.

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Hsiang-nan Li, Hoi-Lai Yu. 1996-12-10. Determination of the HQET Parameters from the $B \to X_sγ$ Decay. https://doi.org/10.1103/physrevd.55.2833

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