2004/08/31 by Alan S. Cornell, A. S. Cornell, Naveen Gaur · 1 citation
Chemistry · Mathematics · Physics and Astronomy · #Asymmetry #Black Holes and Theoretical Physics #Branching fraction #Chemistry #Electron #Hamiltonian (control theory) #Lepton #Mathematics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Polarization (electrochemistry) #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1088/1126-6708/2005/02/005
published as JHEP 0502:005,2005 · version accepted in JHEP, formating changed to JHEP style, LaTeX file 23 pages including 15 eps figures
openalex publication_date 2005/02/03 · arxiv created 2005/02/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In this work we shall derive expressions for the single and double lepton polarization asymmetries for the exclusive decay B → K^* ℓ+ ℓ-, using the most general model independent effective Hamiltonian. We have conducted this study with this particular channel as it has the highest branching ratio among the various purely leptonic and semi-leptonic decay modes, making this mode particularly useful for studying physics beyond the SM. We have also analyzed the effects on these polarization asymmetries, and hence the physics underlying it, when complex phases are included in some of the Wilson coefficients.