1pm - 2pm: Gauge theory bound states
1pm - 2pm: Gauge theory bound states
- Event time: 12:30pm until 2:30pm
- Event date: 6th May 2026
- Speaker: Paul Hoyer (University of Helsinki)
- Location: Higgs Centre (Room 4305), James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
Bound states have a reputation of being a difficult and murky aspect of Quantum Field Theory. The Feynman diagram expansion around free fields is unsuitable for bound states. QFT textbooks focus on scattering amplitudes. There are few studies of the Poincare covariance of bound states.
I discuss a perturbative method based on canonical quantization in temporal (A^0=0) gauge. Gauge fixing requires states to have a longitudinal A_L gauge field, whose energy density gives an instantaneous potential. The confinement scale Lambda_QCD is introduced via a boundary condition on Gauss' law for A_L. The results for confinement and chiral symmetry breaking in QCD are promising.
About Particle Physics Theory seminars
The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..