Testing Fundamental Symmetries with Λ_b → Λ-Vector Decay

2006/02/06 by O. Leitner, Leitner, O., Z. A. Ajaltouni +3 · 1 citation
Chemistry · Materials Science · Medicine · Physics and Astronomy · #Advanced NMR Techniques and Applications #Lanthanide and Transition Metal Complexes #Medical Imaging Techniques and Applications #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0602043

47 pages, 10 figures and 3 tables

arxiv created 2006/02/06 · arxiv updated 2009/12/01

Abstract

Putting together kinematical and dynamical analysis, a complete study of the decay channels Λ_b → Λ V(1^-), with Λ→ p π^- and V (J/ψ) → ℓ⁺ ℓ^- or V (ρ⁰) → π⁺ π^-, is performed. An intensive use of the helicity formalism is involved on the kinematical side, while on the dynamical side, Heavy Quark Effective Theory (HQET) is applied for an accurate determination of the hadronic matrix elements between the baryons Λ_b and Λ. Emphasis is put on the major role of the Λ_b polarization for constructing T-odd observables and the standard ρ⁰-ω mixing has the benefit effect of amplifying the process of direct CP violation between Λ_b and Λ_b decays.

Cited by

• Localized direct CP violation in B^±→ ρ⁰ (ω)π^±→ π⁺ π^-π^±

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