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12 papers · 2 filters
Lattice Calculation of the Strangeness Magnetic Moment of the Nucleon
S. J. Dong, K. F. Liu, A. G. Williams
We report on a lattice QCD calculation of the strangeness magnetic moment of the nucleon. Our result is . The sea contributions from the u and d quarks…
New dynamical symmetry breaking in eletroweak theory
Bing An Li
A new dynamical symmetry breaking of caused by the combination of the axial-vector component and the fermion mass is found in electroweak theory. We obtain (…
Masses of W and Z bosons without Higgs
Bing An Li
A Lagrangian of electroweak interactions without Higgs is used to study the contributions of quarks and leptons to the masses of the W and the Z bosons. It is shown that the $SU(2)…
Direct CP Violation in in the - Interference Region
S. Gardner, H. B. O'Connell, A. W. Thomas
We study direct CP violation in and focus specifically on the rate asymmetry in the - interference region. Here the strong phase is…
Near-threshold Isospin Violation in the Pion Form Factor from Chiral Perturbation Theory
H. B. O'Connell, K. Maltman, A. W. Thomas +1
We examine the isospin violation in the timelike pion form factor near threshold at next-to-leading order in the chiral expansion using the techniques of Chiral Perturbation Theory…
On extracting the rho-omega mixing amplitude from the pion form-factor
A. G. Williams, H. B. O'Connell, A. W. Thomas
In this paper we improve and extend a recent analysis which showed that the rho-omega mixing amplitude cannot be unambiguously extracted from the pion electromagnetic form-factor i…