Azimuthal correlation between the(p→l,p→Xb)and(p→l,P→t)planes in the semileptonic rest frame decay of a polarized top quark: AnO(αs)effect

2006/02/28 by S. Groote, Wen-Sheng Huo, W. S. Huo +3 · 19 citations
Mathematics · Physics and Astronomy · #Azimuth #Black Holes and Theoretical Physics #Combinatorics #Mathematics #Optics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph

paper · pdf · doi:10.1103/physrevd.76.014012

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 76(1) (American Physical Society) · latex, 12 pages with 2 figures in the text, typos removed,comment and references added, replaced with published version

openalex publication_date 2007/07/31 · arxiv created 2008/02/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The azimuthal correlation between the planes formed by the vectors (\stackrel\ensuremath→p_\ensuremathℓ,\stackrel\ensuremath→p_X_b) and (\stackrel\ensuremath→p_\ensuremathℓ,\stackrel\ensuremath→P_t) in the semileptonic rest frame decay of a polarized top quark t(\ensuremath\uparrow)\ensuremath→X_b+\ensuremathℓ⁺+\ensuremathν_\ensuremathℓ belongs to a class of polarization observables involving the top quark which vanish at the Born term level in the standard model. We determine the next-to-leading-order QCD corrections to the aforementioned azimuthal correlation and compare the result to the corresponding contribution of a non-standard-model right-chiral quark current.

Citations

• Anomalous couplings of the third generation in rareBdecays
• Analysis of t-b-W and t-t-Z couplings from CLEO and LEP/SLC data