Dimensionally regularized box and phase-space integrals involving gluons and massive quarks

Authors
Rodrigo, G Santamaria, A Bilenky, M
Citation
G. Rodrigo et al., Dimensionally regularized box and phase-space integrals involving gluons and massive quarks, J PHYS G-NU, 25(8), 1999, pp. 1593-1606
Citations number
42
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
ISSN journal
09543899 → ACNP
Volume
25
Issue
8
Year of publication
1999
Pages
1593 - 1606
Database
ISI
SICI code
0954-3899(199908)25:8<1593:DRBAPI>2.0.ZU;2-U
Abstract
The basic box and phase-space integrals needed to compute at second order t he three-jet decay rate of the Z-boson into massive quarks are presented in this paper. Dimensional regularization is used to regularize the infrared divergences that appear in intermediate steps. Finally, the cancellation of these divergences among the virtual and the real contributions is showed e xplicitly.