An angular distribution analysis of ${\Lambda }_b$ decays

Abstract

A study of the angular distributions of the processes ${\Lambda }_b\to \Lambda V(1^{-})$ with $V({J/\Psi ,\rho }^0)$ is performed. Emphasis is put on the initial ${\Lambda }_b$ polarization and the polarization density-matrices are derived to perform tests of both Time-Reversal (TR) and CP violation.

4 pages, 1 figure. Presented at 10th International Baryons Conference, Ecole Polytechnique (Palaiseau, France) October 25-29 October 2004

References in corpus (2)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• ${\Lambda }_b$ Decays into $\Lambda$-Vector

Cited by in corpus (9)

• Helicity Analysis of Semileptonic Hyperon Decays Including Lepton Mass Effects
• Nonleptonic two-body decays of single heavy baryons ${\Lambda }_Q$, ${\Xi }_Q$, and ${\Omega }_Q$ $(Q=b,c)$ induced by $W$ emission in the covariant confined quark model
• Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector
• Measurement of the ${\Lambda }_b$ polarization and angular parameters in ${\Lambda }_b\to J/\psi \Lambda$ decays from pp collisions at $\sqrt{s}=$ 7 and 8 TeV
• Time-reversal asymmetries and angular distributions in ${\Lambda }_b\to \Lambda V$
• Estimates of exchange topological contributions and $CP$-violating observables in ${\Lambda }_b\to \Lambda \varphi$ decay
• Charmonium decays of beauty baryons in the perturbative QCD approach
• Note on new interesting baryon channels to measure the photon polarization in b -> s gamma
• Sizable Time-reversal violating effects in bottom baryon decays