Radiative corrections to the semileptonic Dalitz plot with an angular correlation between polarized decaying and emitted hyperons: Effects of the four-body region

Rubén Flores-Mendieta, A. García, A. Martínez, J. J. Torres

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)

Resumen

We obtain a model-independent expression for the complete Dalitz plot of semileptonic decays of polarized hyperons, which includes both the three-body and the four-body regions. We calculate radiative corrections to order α, neglecting terms of order αq/πM1, where q is the four-momentum transfer and M1 is the mass of the decaying hyperon. Our results exhibit explicitly the correlation between the emitted hyperon three-momentum and the spin of the decaying hyperon. This allows us to obtain the corresponding radiative corrections to the integrated emitted hyperon spin-asymmetry coefficient. Our formulas are valid for charged as well as for neutral decaying hyperons and are appropriate for model-independent experimental analysis whether or not the real photon is discriminated.

Idioma originalInglés
Número de artículo074002
Páginas (desde-hasta)740021-740029
Número de páginas9
PublicaciónPhysical Review D
Volumen65
N.º7A
DOI
EstadoPublicada - 1 abr. 2002

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