Order-α radiative corrections for semileptonic decays of unpolarized baryons
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ID: 112120
1990
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Abstract
The theory of the order-$\ensuremath{\alpha}$ radiative correction to the $\ensuremath{\beta}$ decay of baryons is briefly reviewed. An effective procedure for the calculation of the real-photonic part of the order-$\ensuremath{\alpha}$ correction is outlined. Numerical results are tabulated for the radiative corrections to the branching ratio, the electron-antineutrino correlation parameter, the electron-energy (${E}_{e}$) spectrum, the final-baryon-energy (${E}_{f}$) spectrum, and the electron-antineutrino angular-correlation (${E}_{e}$) distribution, and to the (${E}_{f}$, ${E}_{f}$) and the (${E}_{e}$, $cos{\ensuremath{\theta}}_{e\ensuremath{\nu}}$) two-variable distributions in the cases of the decays ${\ensuremath{\Sigma}}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{ne}\overline{\ensuremath{\nu}}$, ${\ensuremath{\Sigma}}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\Lambda}e\overline{\ensuremath{\nu}}$, ${\ensuremath{\Xi}}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\Lambda}e\overline{\ensuremath{\nu}}$, and $\ensuremath{\Lambda}\ensuremath{\rightarrow}\mathrm{pe}\overline{\ensuremath{\nu}}$.
| Reference Key |
glück1990physicalorder-α
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|---|---|
| Authors | F. Glück;K. Tóth; |
| Journal | physical review d |
| Year | 1990 |
| DOI |
doi:10.1103/PhysRevD.41.2160
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| URL | |
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