arXiv subjects

A. Bashir

Publications and source records attributed to A. Bashir.

74 records · Page 5Linked to original sources

arXiv1994

Chiral Symmetry Breaking for Fundamental Fermions

This talk gives an overview of the recent development in the study of non-perturbative fermion-boson vertex in quenched QED towards achieving that the fermion propagator satisfies the Ward-Takahashi identity, is multiplicatively renormalizable, agrees with perturbation theory for weak couplings and has a critical coupling for dynamical mass generation that is strictly gauge independent. The use of such a vertex may lead to a realistic calculation of t(tbar) condensates as the source of electroweak symmetry breaking. (Talk given at The Advanced Study Institute on Frontiers in Particle Physics, Cargese, Ajaccio, France, August 1-13, 1994.)

hep-ph↗

arXiv1994

Gauge independent Chiral Symmetry Breaking in Quenched QED

In quenched QED we construct a non-perturbative fermion-boson vertex that ensures the fermion propagator satisfies the Ward-Takahashi identity, is multiplicatively renormalizable, agrees with perturbation theory for weak couplings and has a critical coupling for dynamical mass generation that is strictly gauge independent. This is in marked contrast to the rainbow approximation in which the critical coupling changes by 50% just between the Landau and Feynman gauges. The use of such a vertex should lead to a more believable study of mass generation.

hep-ph↗