ASYMPTOTIC O(ALPHA-ALPHA(S)) BEHAVIOR OF THE ELECTROWEAK GAUGE BOSON VACUUM POLARIZATION FUNCTIONS FOR ARBITRARY QUARK MASSES

Authors
DJOUADI A GAMBINO P
Citation
A. Djouadi et P. Gambino, ASYMPTOTIC O(ALPHA-ALPHA(S)) BEHAVIOR OF THE ELECTROWEAK GAUGE BOSON VACUUM POLARIZATION FUNCTIONS FOR ARBITRARY QUARK MASSES, Physical review. D. Particles and fields, 49(9), 1994, pp. 4705-4712
Citations number
31
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
49
Issue
9
Year of publication
1994
Pages
4705 - 4712
Database
ISI
SICI code
0556-2821(1994)49:9<4705:AOBOTE>2.0.ZU;2-F
Abstract
We derive the QCD corrections to the electroweak gauge boson vacuum po larization functions at high and zero momentum transfer in the case of arbitrary internal quark masses. We then discuss in this general case (i) the connection between the O(alphaalpha(s)) calculations of the v ector boson self-energies using dimensional regularization and the one performed via a dispersive approach and (ii) the QCD corrections to t he rho parameter for a heavy quark isodoublet.