A NONPERTURBATIVE, SCHWINGER-DYSON EQUATION ANALYSIS OF QUARK MASSES AND MIXINGS IN A MODEL WITH QCD AND HIGGS INTERACTIONS

Authors
SMITH LL JAIN P MCKAY DW
Citation
Ll. Smith et al., A NONPERTURBATIVE, SCHWINGER-DYSON EQUATION ANALYSIS OF QUARK MASSES AND MIXINGS IN A MODEL WITH QCD AND HIGGS INTERACTIONS, Modern physics letters A, 10(9), 1995, pp. 773-787
Citations number
44
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields","Physycs, Mathematical
Journal title
Modern physics letters A → ACNP
ISSN journal
02177323
Volume
10
Issue
9
Year of publication
1995
Pages
773 - 787
Database
ISI
SICI code
0217-7323(1995)10:9<773:ANSEAO>2.0.ZU;2-B
Abstract
The Schwinger-Dyson equation for the quark self-energy is solved in th e quenched ladder approximation for several cases of one- and two-quar k generations. The exchanges of standard model gluons and Higgs bosons are taken into account. It is found that Higgs boson exchange dominat es the quark self-energy in the uv region for sufficiently large input quark masses (> 75 GeV), causing the running quark propagator mass to increase with energy scale. The running of the quark mixing angles is also considered. No running of the quark mixing angles is found for i nput quark masses up to and including 500 GeV.