2003/04/30 by S. Rai Choudhury, Naveen Gaur, Alan S. Cornell +2 · 4 citations
Chemistry · Physics and Astronomy · #Asymmetry #Chemistry #Dark Matter and Cosmic Phenomena #Electron #Lepton #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Polarization (electrochemistry) #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.68.054016
published as Phys.Rev. D68 (2003) 054016 · 21 pages, 21 figures; version to match paper to appear in PRD
arxiv created 2003/09/13 · openalex publication_date 2003/09/23 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this work we will study the polarizations of both leptons (\ensuremathτ) in the decay channel \stackrel\ensuremath→BK*\ensuremathτ^\ensuremath-\ensuremathτ+. In the case of the dileptonic inclusive decay \stackrel\ensuremath→BK*l^\ensuremath-l+, where apart from the polarization asymmetries of a single lepton l, one can also observe the polarization asymmetries of both leptons simultaneously. If this sort of measurement is possible then we can have, apart from decay rate, forward backward asymmetry and the six single lepton polarization asymmetries (three each for l^\ensuremath- and l+), nine more double polarization asymmetries. This will give us a very useful tool in more strict testing of the standard model (SM) and the physics beyond. We discuss the double polarization asymmetries of the \ensuremathτ leptons in the decay mode \stackrel\ensuremath→BK*\ensuremathτ^\ensuremath-\ensuremathτ+ within the SM and the minimal supersymmetric extension of it.