$Λ_b$ Decays into $Λ$-Vector

Details $Λ_b$ Decays into $Λ$-Vector $Λ_b$ Decays into $Λ$-Vector

2004-12-08

arxiv.org/abs/hep-ph/0412116v1

Phys.Lett. B614 (2005) 165-173

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures

Scientific paper

10.1016/j.physletb.2005.04.014

A complete study of the angular distributions of the processes, $\Lambda_b \to {\Lambda} V(1^-)$, with $\Lambda \to p {\pi}^-$ and $V (J/{\Psi}) \to {\ell}^+ {\ell}^-$ or $V ({\rho}^0,\omega) \to {\pi}^+ {\pi}^-,$ is performed. Emphasis is put on the initial $\Lambda_b$ polarization produced in the proton-proton collisions. The polarization density-matrices as well as angular distributions are derived and help to construct T-odd observables which allow us to perform tests of both Time-Reversal and CP violation.

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