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19 papers · 1 filter
Mesonic Form Factors
LHPC Collaboration, Frederic D. R. Bonnet, Robert G. Edwards +3
We have started a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present preliminary results comp…
Q^2 Evolution of the Neutron Spin Structure Moments using a He-3 Target
010 Collaboration, M. Amarian, L. Auerbach +2
We have measured the spin structure functions and of He in a double-spin experiment by inclusively scattering polarized electrons at energies ranging from 0.862 to…
Model Building with Gauge-Yukawa Unification
Ilia Gogoladze, Yukihiro Mimura, S. Nandi
In supersymmetric theories with extra dimensions, the Higgs and matter fields can be part of the gauge multiplet, so that the Yukawa interactions can arise from the gauge interacti…
Lattice regularized chiral perturbation theory
Bugra Borasoy, Randy Lewis, Pierre-Philippe A. Ouimet
Chiral perturbation theory can be defined and regularized on a spacetime lattice. A few motivations are discussed here, and an explicit lattice Lagrangian is reviewed. A particular…
The pion electromagnetic form factor
Frederic D. R. Bonnet, Robert G. Edwards, George T. Fleming +2
A ratio of lattice correlation functions is identified from which the pion form factor can be obtained directly. Preliminary results from quenched Wilson simulations are presented.
In-Medium rho^0 Spectral Function Study via the 2H, 3He, 12C(gamma,pi+pi-) Reaction
G. M. Huber, G. J. Lolos, Z. Papandreou +11
We report a helicity analysis of sub-threshold rho^0 production on 2H, 3He and 12C at low photo-production energies. The results are indicative of a large longitudinal rho^0 polari…