QCD threshold corrections to Higgs decay and to hadroproduction in l+l− annihilation

2006/04/30 by J. Blümlein, V. Ravindran · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th

paper · pdf · doi:10.1016/j.physletb.2006.07.029

published as Phys.Lett.B640:40-47,2006 · 12 pages

arxiv created 2006/04/30 · openalex publication_date 2006/07/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

We present threshold enhanced QCD corrections to the bottom quark energy distribution in Higgs boson decay and to hadroproduction in l⁺l^- annihilation beyond leading order in the strong coupling constant. This is achieved using the resummed decay distribution obtained using renormalisation group invariance and the mass factorisation theorem that they satisfy and Sudakov resummation of soft gluons.

Citations

• Revisiting parton evolution and the large-x limit
• Next-to-next-to-leading order evolution of non-singlet fragmentation functions
• O(αs2) timelike Wilson coefficients for parton–fragmentation functions in Mellin space
• On Sudakov and soft resummations in QCD
• Soft-gluon resummation for Higgs boson production at hadron colliders

Cited by

• Higher-order threshold resummation for semi-inclusive e+e− annihilation
• Modelling non-perturbative corrections to bottom-quark fragmentation