On the $Λ^+_c$ -> p + K^- + $π^+$ decay

Details On the $Λ^+_c$ -> p + K^- + $π^+$ decay On the $Λ^+_c$ -> p + K^- + $π^+$ decay

1998-10-02

arxiv.org/abs/hep-ph/9810225v1

Phys.Rev. C60 (1999) 015201

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, Latex, no figures

Scientific paper

10.1103/PhysRevC.60.015201

The proton energy spectrum and the angular distribution of the probability of the $\Lambda^+_c$ -> p + $K^-$ + $\pi^+$ decay for the polarized $\Lambda^+_c$ and the unpolarized proton are calculated in the effective quark model with chiral U(3) X U(3) symmetry incorporating Heavy Quark Effective theory (HQET) and Chiral perturbation theory at the quark level (CHPT)$_q$. The application of the obtained result to the analysis of the polarization of the $\Lambda^+_c$ produced in the processes of photo and hadroproduction is discussed. We draw the similarity between the measurements of the polarization of the $\Lambda^+_c$ in the $\Lambda^+_c$ -> p + $K^-$ + $\pi^+$ decay and the $\mu^-$--meson in the $\mu^-$ -> $e^-$ + $\bar{\nu}_e$ + $\nu_{\mu}$ decay.

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