Conveners
Theory
- Alexander Rothkopf (Institute for Theoretical Physics, Heidelberg University)
Prof.
Margaret Carrington
(Brandon University)
4/10/15, 4:00 PM
talk
We use the functional renormalization group to formulate the renormalization of the nPI effective action. The resulting set of coupled integro-differential equations can be solved using a numerical lattice method. The major numerical obstacle is the size of the phase space, which can be reduced by efficiently exploiting the symmetries of the n-point functions. The renormalization group method...
Prof.
Joseph Kapusta
(University of Minnesota)
4/10/15, 4:20 PM
talk
The Anti-de Sitter Space/Conformal Field Theory (AdS/CFT) correspondence may offer new and useful insights into the non-perturbative regime of strongly coupled gauge theories such as Quantum Chromodynamics (QCD).
We present an AdS/CFT-inspired model that describes the spectra of light mesons. The conformal symmetry is broken by a background dilaton field, and chiral symmetry breaking and...
Dr
Sixue Qin
(Argonne Natl Lab)
4/10/15, 4:40 PM
talk
The gauge principle is fundamental in formulating the Standard Model. Fermion--gauge-boson couplings are the inescapable consequence and the primary determining factor for observable phenomena. Vertices describing such couplings are simple in perturbation theory and yet the existence of strong-interaction bound-states guarantees that many phenomena within the Model are nonperturbative. It...
Mr
Shuntaro Sakai
(Kyoto University)
4/10/15, 5:00 PM
talk
We explore how the \eta-\pi^0 mixing angle and the \eta meson
decay into \pi^+\pi^-\pi^0 and 3\pi^0 are modified in the nuclear
medium on the basis of chiral effective field theory.
We find that the larger isospin-asymmetry \delta\rho\equiv \rho_n-\rho_p and the smaller total baryon density \rho\equiv\rho_n+\rho_p, the more enhanced the mixing angle.
It turns out that the effect of...
Prof.
Harald W. Griesshammer
(Institute for Nuclear Studies, George Washington University)
4/10/15, 5:20 PM
talk
Compton scattering from protons and neutrons probes the two-photon response of the nucleon in electric and magnetic fields at fixed photon frequency and multipolarity. As these fields induce radiation multipoles by displacing the target constituents, the angular and energy dependence of the emitted radiation provides detailed tests of the symmetries and strengths which govern the interactions...
