Higgs-boson decay and the running mass

E. Braaten and J. P. Leveille
Phys. Rev. D 22, 715 – Published 1 August 1980
PDFExport Citation

Abstract

We calculate QED and quantum-chromodynamics (QCD) radiative corrections to the fermionic decays of the Higgs boson, Hl+l and Hqq¯. A novel feature of the calculation is that renormalization introduces logarithms of the fermion mass into the total decay rate. The order-α QED corrections suppress the decay rate by a few percent. The order-αs, QCD corrections to the hadronic decay rate for a heavy Higgs boson are large, and lowestorder perturbation theory is useful only for quantities in which the logarithms of the quark mass cancel, such as Γ(H2 jets)Γ(Hhadrons). We obtain reliable corrections to the decay rate Hqq¯ by summing the QCD corrections to all orders in the leading-logarithm approximation. The result has a simple interpretation in terms of the "running mass" of the renormalization group: The effective quark-Higgs-boson coupling is proportional to the running mass of the quark evaluated at the Higgs-boson mass.

  • Received 25 February 1980

DOI:https://doi.org/10.1103/PhysRevD.22.715

©1980 American Physical Society

Authors & Affiliations

E. Braaten and J. P. Leveille

  • Physics Department, University of Wisconsin at Madison, Madison, Wisconsin 53706

References (Subscription Required)

Click to Expand
Issue

Vol. 22, Iss. 3 — 1 August 1980

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×