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69 papers · 2 filters
Further Comments on a Vanishing Singlet Axial Vector Charge
T. P. Cheng, N. I. Kochelev, V. Vento
The recent suggestion of a vanishing flavor-singlet axial charge of nucleon due to a nontrivial vacuum structure is further amplified. A perturbative QCD discussion, applicable for…
Effects of magnetohydrodynamics matter density fluctuations on the solar neutrino resonant spin-flavor precession
N. Reggiani, M. M. Guzzo, J. H. Colonia +1
Taking into account the stringent limits from helioseismology observations on possible matter density fluctuations described by magnetohydrodynamics theory, we find the correspondi…
Tau weak dipole moments from azimuthal asymmetries
J. Vidal, J. Bernabeu, G. Gonzalez-Sprinberg
We show that transverse and normal single- polarization of pairs produced at unpolarized collisions, at the peak, are sensitive to weak (magnetic and ele…
More on higher order decays of the lighter top squark
Werner Porod
We discuss the three-body decays stop_1 -> W^+ b neutralino_1, stop_1 -> H^+ b neutralino_1, stop_1 -> b slepton_i neutrino_l, and stop_1 -> b sneutrino_l l^+l =e,μ,τ$) of the…
Neutrinoless double beta decay in Supersymmetry with bilinear R-parity breaking
M. Hirsch, J. W. F. Valle
We reanalyze the contributions to neutrinoless double beta ($\znbb$) decay from supersymmetry with explicit breaking of R-parity. Although we keep both bilinear and trilinear terms…
Yukawa coupling corrections to the decay
Andrew Akeroyd, Abdesslam Arhrib, El-Mokhtar Naimi
We compute the fermionic radiative contributions to the decay in the framework of models with two Higgs doublets (2HDM), for the case of an on-shell and off-…