Angular distribution and asymmetries in the decay of the polarized charmed baryon $\Lambda_c^+ \to K^- \, \Delta^{++} \to K^- \, p \, \pi^+$

A. Yu. Korchin; V. A. Kovalchuk

doi:10.1142/s0217751x20500608

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arXiv · 2003.05866

Angular distribution and asymmetries in the decay of the polarized charmed baryon $\Lambda_c^+ \to K^- \, \Delta^{++} \to K^- \, p \, \pi^+$

A. Yu. Korchin·V. A. Kovalchuk

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Abstract

Angular distribution of the final particles in the decay $\Lambda_c^+\to K^- \, \Delta (1232)^{++} \to K^- \, p \, \pi^+$ of the polarized charmed baryon is discussed. Asymmetries are proposed which allow for determination of the components of the $\Lambda_c^+$ 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 $\Lambda_c^+\to K^- \, \Delta (1232)^{++}$ decay are calculated in the pole model and compared with experiment.

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A. Yu. Korchin, V. A. Kovalchuk. 2020-03-12. Angular distribution and asymmetries in the decay of the polarized charmed baryon $\Lambda_c^+ \to K^- \, \Delta^{++} \to K^- \, p \, \pi^+$. https://doi.org/10.1142/s0217751x20500608

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