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42 papers · 1 filter
QCD Predictions for the Tau Hadronic Width: Determination of alpha_s(M_τ^2)
A. Pich
The total hadronic width can be accurately calculated using analyticity and the operator product expansion. The theoretical analysis of this observable is updated to include al…
Role of Meson-Meson Correlation Effects in the $\NNb\toρπ$ Annihilation Process
V. Mull, G. Janssen, J. Speth +1
Meson-meson correlation effects are investigated in the $\NNb\toρπ$ annihilation process using a realistic meson-exchange model for the interaction determined previously, toge…
Charge Radii of Hyperons
Sarira Sahu
The momentum projected SU(3) Chiral Color Dielectric Model (CCDM) is employed to calculate the charge root mean square radii and charge distributions of hyperons. We compare our re…
Diffeomorphisms, Noether Charges and Canonical Formalism in 2D Dilaton Gravity
J. Navarro-Salas, M. Navarro, C. F. Talavera
We carry out a parallel study of the covariant phase space and the conservation laws of local symmetries in two-dimensional dilaton gravity. Our analysis is based on the fact that…
Solar Neutrino Data, Neutrino Magnetic Moments and Flavor Mixing
E. Kh. Akhmedov, A. Lanza, S. T. Petcov
The results of all currently operating solar neutrino experiments are analyzed in the framework of the resonant neutrino spin--flavor precession scenario including the effects of n…
The tau weak-magnetic dipole moment
J. Bernabéu, G. A. González-Sprinberg, M. Tung +1
We calculate the prediction for the anomalous weak-magnetic form factor of the tau lepton at within the Standard Model. With all particles on-shell, this is a electrowe…