T-violating triple product asymmetries inΛb→Λπ+π−decay

2003/07/31 by S. Arunagiri, C. Geng, C. Q. Geng · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.69.017901

published as Phys.Rev. D69 (2004) 017901 · 6 pages; an equation inserted and a reference added; typos corrected. Version to appear in PRD

arxiv created 2003/10/30 · openalex publication_date 2004/01/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We study the decay \ensuremathΛ_b\ensuremath→\ensuremathΛ\ensuremathπ⁺\ensuremathπ^\ensuremath-. The branching fraction is predicted to be about 4.4\ifmmode×\else\texttimes\fi10^\ensuremath-8. Within the standard model, we compute the T-odd triple product asymmetries to be about 1.4, 4.3, 6.5, and 7.2 %, respectively, due to s_\ensuremathΛ_b,\ensuremathΛ\ensuremath⋅(p_\ensuremathΛ\ifmmode×\else\texttimes\fip_\ensuremathπ) and p_\ensuremathΛ,\ensuremathπ\ensuremath⋅(s_\ensuremathΛ\ifmmode×\else\texttimes\fis_\ensuremathΛ_b).

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