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arXiv · hep-ph/9505354

Angular Distribution and Polarization of Photons in the Inclusive Decay $Λ_b\to X_s\,γ$

M. Gremm·F. Krüger·L. M. Sehgal
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Abstract

We study the angular distribution of photons produced in the inclusive decay of a polarized $Λ_b$, $Λ_b\to X_s\,γ$, using the technique of Heavy Quark Effective Theory. Finite non-perturbative corrections are obtained relative to the free quark decay $b\to sγ$. These corrections affect significantly the intensity and polarization of photons emitted at small angles relative to the $Λ_b$ spin direction.

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M. Gremm, F. Krüger, L. M. Sehgal. 1995-05-22. Angular Distribution and Polarization of Photons in the Inclusive Decay $Λ_b\to X_s\,γ$. https://doi.org/10.1016/0370-2693(95)00722-w

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