Quadratic mass corrections of order to the decay rate of Z- and W-bosons

1996/08/30 by K. G. Chetyrkin, K.G Chetyrkin, J. H. Kuhn +1 · 4 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0370-2693(97)00631-x

published as Phys.Lett. B406 (1997) 102-109 · 9 pages, LaTeX, no figures

arxiv created 1996/08/30 · openalex publication_date 1997/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We analytically compute quadratic mass corrections of order α_s³ m_q²/s to the absorptive part of the (non-diagonal) correlator of two axial vector currents. This allows us to find the correction of order α_s³ m_q²/M²_W to the Γ(W -->hadrons) as well as similar corrections to Γ(Z -->hadrons).

Citations

• Top Quark Contribution to Hadronic Decays of theZBoson atO(αs2)in QCD

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