Abstract
Past attempts in effective Lagrangians and field algebra models are reviewed, and an effective low-energy renormalizable gauge model is presented for mesons and nucleons where the strong and electroweak interactions are unified. The input parameters of the model are the {rho} mass and width, the nucleon mass, the {pi}-N coupling constant and the pion scattering lengths. The model predicts the A{sub 1} mass, G{sub A}/G{sub V}, the pion decay constant f{sub {pi}}, the {pi}{sup 0} life-time and gives a finite estimate for pure electromagnetic contribution to the proton-neutron mass difference. This approach can be compared with models of the Skyrme type. It is shown that it faces similar difficulties as far as the accuracy of numerical predictions is concerned. (author) 63 refs.; 1 fig.; 3 tabs.
Zwirn, H P;
[1]
Basdevant, J L
[2]
- Paris-6 Univ., 75 (France). Lab. de Physique Theorique des Particules Elementaires
- Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire
Citation Formats
Zwirn, H P, and Basdevant, J L.
Unified effective Lagrangian for the strong and electroweak interactions of pions, nucleons and leptons.
France: N. p.,
1992.
Web.
Zwirn, H P, & Basdevant, J L.
Unified effective Lagrangian for the strong and electroweak interactions of pions, nucleons and leptons.
France.
Zwirn, H P, and Basdevant, J L.
1992.
"Unified effective Lagrangian for the strong and electroweak interactions of pions, nucleons and leptons."
France.
@misc{etde_10109846,
title = {Unified effective Lagrangian for the strong and electroweak interactions of pions, nucleons and leptons}
author = {Zwirn, H P, and Basdevant, J L}
abstractNote = {Past attempts in effective Lagrangians and field algebra models are reviewed, and an effective low-energy renormalizable gauge model is presented for mesons and nucleons where the strong and electroweak interactions are unified. The input parameters of the model are the {rho} mass and width, the nucleon mass, the {pi}-N coupling constant and the pion scattering lengths. The model predicts the A{sub 1} mass, G{sub A}/G{sub V}, the pion decay constant f{sub {pi}}, the {pi}{sup 0} life-time and gives a finite estimate for pure electromagnetic contribution to the proton-neutron mass difference. This approach can be compared with models of the Skyrme type. It is shown that it faces similar difficulties as far as the accuracy of numerical predictions is concerned. (author) 63 refs.; 1 fig.; 3 tabs.}
place = {France}
year = {1992}
month = {Dec}
}
title = {Unified effective Lagrangian for the strong and electroweak interactions of pions, nucleons and leptons}
author = {Zwirn, H P, and Basdevant, J L}
abstractNote = {Past attempts in effective Lagrangians and field algebra models are reviewed, and an effective low-energy renormalizable gauge model is presented for mesons and nucleons where the strong and electroweak interactions are unified. The input parameters of the model are the {rho} mass and width, the nucleon mass, the {pi}-N coupling constant and the pion scattering lengths. The model predicts the A{sub 1} mass, G{sub A}/G{sub V}, the pion decay constant f{sub {pi}}, the {pi}{sup 0} life-time and gives a finite estimate for pure electromagnetic contribution to the proton-neutron mass difference. This approach can be compared with models of the Skyrme type. It is shown that it faces similar difficulties as far as the accuracy of numerical predictions is concerned. (author) 63 refs.; 1 fig.; 3 tabs.}
place = {France}
year = {1992}
month = {Dec}
}