33 citations · 38 across the 2 of their papers we have counts for
5 papers
Lattice QCD with a twisted mass term and a strange quark
Abdou M. Abdel-Rehim, Randy Lewis, R. M. Woloshyn +1
There are three quarks with masses at or below the characteristic scale of QCD dynamics: up, down and strange. However, twisted mass lattice QCD relies on quark doublets. Various o…
Chiral corrections to the Roper mass
B. Borasoy, P. C. Bruns, U. -G. Meißner +1
We analyze the quark mass dependence of the Roper mass to one-loop order in relativistic baryon chiral perturbation theory. The loop integrals are evaluated using infrared regulari…
Volume dependences from lattice chiral perturbation theory
B. Borasoy, R. Lewis
The physics of pions within a finite volume is explored using lattice regularized chiral perturbation theory. This regularization scheme permits a straightforward computational app…
Particle decay branching ratios for states of astrophysical importance in 19Ne
D. W. Visser, J. A. Caggiano, R. Lewis +3
We have measured proton and alpha-particle branching ratios of excited states in 19Ne formed using the 19F(3He,t) reaction at a beam energy of 25 MeV. These ratios have a large imp…
Long distance regularization in chiral perturbation theory with decuplet
B. Borasoy, B. R. Holstein, R. Lewis +1
We investigate the use of long distance regularization in SU(3) baryon chiral perturbation theory with decuplet fields. The one-loop decuplet contributions to the octet baryon mass…