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Angular distribution and asymmetries in the decay of the polarized charmed baryon $Λ_{c}^{+} \to K^{-} Δ^{+ +} \to K^{-} p π^{+}$

A. Yu. Korchin

http://orcid.org/0000-0001-7947-170X

NSC “Kharkiv Institute of Physics and Technology”, 61108 Kharkiv, Ukraine

V. N. Karazin Kharkiv National University, 61022 Kharkiv, Ukraine

E-mail Address: korchin@kipt.kharkov.ua

Corresponding author

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and

V. A. Kovalchuk

NSC “Kharkiv Institute of Physics and Technology”, 61108 Kharkiv, Ukraine

E-mail Address: koval@kipt.kharkov.ua

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https://doi.org/10.1142/S0217751X20500608Cited by:0 (Source: Crossref)

Abstract

Angular distribution of the final particles in the decay $Λ_{c}^{+} \to K^{-} Δ {(1232)}^{+ +} \to K^{-} p π^{+}$ of the polarized charmed baryon is discussed. Asymmetries are proposed that allow for determination of the components of the $Λ_{c}^{+}$ polarization vector. The precession angle of the polarization in the process of baryon channeling in a bent crystal is directly related to these asymmetries. The decay rate and asymmetry parameter for the $Λ_{c}^{+} \to K^{-} Δ {(1232)}^{+ +}$ decay are calculated in the pole model and compared with experiment.

Keywords:

PACS: 13.30.-a, 13.30.Eg, 14.20.-c

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