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Unified effective Lagrangian for the strong and electroweak interactions of pions, nucleons and leptons

Technical Report:

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.
Authors:
Zwirn, H P; [1]  Basdevant, J L [2] 
  1. Paris-6 Univ., 75 (France). Lab. de Physique Theorique des Particules Elementaires
  2. Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
IPNO-TH-92-08
Reference Number:
SCA: 662210; PA: AIX-25:004117; EDB-94:015701; ERA-19:005626; NTS-94:014780; SN: 93001121068
Resource Relation:
Other Information: PBD: 1992
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; UNIFIED GAUGE MODELS; LAGRANGIAN FUNCTION; COUPLING CONSTANTS; FIELD ALGEBRA; MASS; NUCLEONS; PARTICLE WIDTHS; PIONS; RENORMALIZATION; 662210; UNIFIED THEORIES AND MODELS
OSTI ID:
10109846
Research Organizations:
Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire
Country of Origin:
France
Language:
English
Other Identifying Numbers:
Other: ON: DE94609654; TRN: FR9303089004117
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
FRN
Size:
41 p.
Announcement Date:
Jun 30, 2005

Technical Report:

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}
}