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26 papers · 1 filter
Suppressing Proton Decay in the Minimal SO(10) Model
Bhaskar Dutta, Yukihiro Mimura, R. N. Mohapatra
We show that in a class of minimal supersymmetric SO(10) models which have been found to be quite successful in predicting neutrino mixings, all proton decay modes can be suppresse…
Lattice Computations of the Pion Form Factor
LHP Collaboration, Frederic D. R. Bonnet, Robert G. Edwards +3
We report on a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present results computed with domai…
Automatically generating Feynman rules for improved lattice field theories
A. Hart, G. M. von Hippel, R. R. Horgan +1
Deriving the Feynman rules for lattice perturbation theory from actions and operators is complicated, especially when improvement terms are present. This physically important task…
The aerogel threshold Cherenkov detector for the High Momentum Spectrometer in Hall C at Jefferson Lab
R. Asaturyan, R. Ent, H. Fenker +10
We describe a new aerogel threshold Cherenkov detector installed in the HMS spectrometer in Hall C at Jefferson Lab. The Hall C experimental program in 2003 required an improved pa…
Twisted mass QCD for the pion electromagnetic form factor
Abdou M. Abdel-Rehim, Randy Lewis
The pion form factor is computed using quenched twisted mass QCD and the GMRES-DR matrix inverter. The momentum averaging procedure of Frezzotti and Rossi is used to remove leading…
Implications of the Ganea Condition
Norio Iwase, Donald Stanley, Jeffrey Strom
Suppose the spaces X and X cross A have the same Lusternik-Schnirelmann category: cat(X cross A)= cat(X). Then there is a strict inequality cat(X cross (A halfsmash B)) < cat (X) +…