Decays of polarized top quarks to lepton, neutrino, and jets at NLO QCD

2014/01/23 by W. Bernreuther, P. González, C. Mellein · 11 citations
Computer Science · Physics and Astronomy · #Boson #Computational Physics and Python Applications #Coupling (piping) #Differential (mechanical device) #Order (exchange) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Semileptonic decay #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-014-2815-5

published in The European Physical Journal C 74(3) (Springer Science+Business Media) · Latex, 22 pages

arxiv created 2014/01/23 · openalex publication_date 2014/03/01 · arxiv updated 2015/06/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We compute the differential and total rate of the semileptonic decay of polarized top quarks t→ ℓ ν _ℓ + b~jet + jet at next-to-leading order (NLO) in the QCD coupling with an off-shell intermediate W boson. We present several normalized distributions, in particular those that reflect the t -spin analyzing powers of the lepton, the b-jet and the W⁺ boson at LO and NLO QCD.

Citations

• Bottom-quark fragmentation in top-quark decay
• Soft-Gluon Resummation for Bottom Fragmentation in Top Quark Decay
• Top Quark Physics at the LHC: A Review of the First Two Years
• Spin analyzing power for polarized top decays with jets

Cited by

• Looking for BSM physics using top-quark polarization and decay-lepton kinematic asymmetries