542 citations · 2.8k across the 71 of their papers we have counts for
4 papers · 1 filter
Soft Dynamics and Gauge Theories
Emili Bagan, Martin Lavelle, David McMullan
Infra-red divergences obscure the underlying soft dynamics in gauge theories. They remove the pole structures associated with particle propagation in the various Green's functions…
Radiative Corrections to the Decay and the Heavy Quark Limit
E. Bagan, P. Ball, V. M. Braun
We calculate radiative corrections to the light-cone sum rule for the semileptonic form factor in decays and thus remove the major uncertainty in determining the CKM mixi…
Construction and Consequences of Coloured Charges in QCD
E. Bagan, M. Lavelle, D. McMullan +2
This talk reports on work aimed at improving our understanding of charged states in gauge theories.Emphasis is placed on different ways of implementingthe gauge invariance of physi…
Infra-Red Finite Charge Propagation
Emili Bagan, Bartomeu Fiol, Martin Lavelle +1
The Coulomb gauge has a long history and many uses. It is especially useful in bound state applications. An important feature of this gauge is that the matter fields have an infra-…