# $\Lambda_b$ Decays into $\Lambda$-Vector

Abstract : 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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Journal articles

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Submitted on : Thursday, December 9, 2004 - 2:59:08 PM
Last modification on : Tuesday, April 20, 2021 - 12:00:07 PM

### Citation

Ziad Ajaltouni, E. Conte, O. Leitner. $\Lambda_b$ Decays into $\Lambda$-Vector. Physics Letters B, Elsevier, 2005, 614 (3/4), pp.165-173. ⟨10.1016/j.physletb.2005.04.014⟩. ⟨in2p3-00023411⟩

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