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Title: Implications of the lepton--Higgs-boson generation symmetry in a supersymmetric left-right gauge model

Abstract

Some remarkable issues are investigated concerning an unconventional type of supersymmetric left-right gauge model, where the fields with different lepton numbers are accommodated together in the SU(2){sub {ital R}} multiplets. The phenomenology of the model is restricted by the generation symmetry in the lepton--Higgs-boson sector which is required to suppress enough the flavor-changing neutral currents mediated by the Higgs fields. The mass matrix of the neutralinos, in particular, has a certain form depending on the possible choices of the generation symmetry. The lightest state {ital {tilde N}}{sub LSP} is then found to consist almost entirely of the SU(2){sub {ital L}}{times}U(1){sub {ital Y}}-singlet neutralinos which form the SU(2){sub {ital R}} doublets together with the right-handed charged leptons. {ital {tilde N}}{sub LSP} acquires a mass at most {similar to}1 GeV or even much smaller for most choices of the generation symmetry. It hence may be identified with the lightest supersymmetric particle. Some stringent constraints on the model are obtained from the astrophysical and cosmological effects of such an {ital {tilde N}}{sub LSP}. The decays of superparticles would also look somewhat different, where {ital {tilde N}}{sub LSP} is produced in the final state.

Authors:
;  [1]
  1. Department of Nuclear Engineering, Kyoto University, Kyoto 606 (Japan)
Publication Date:
OSTI Identifier:
7206100
Resource Type:
Journal Article
Journal Name:
Physical Review, D (Particles Fields); (United States)
Additional Journal Information:
Journal Volume: 46:1; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HIGGS BOSONS; SUPERSYMMETRY; ASTROPHYSICS; COSMOLOGY; FLAVOR MODEL; GAUGE INVARIANCE; LEPTON NUMBER; LEPTONS; MASS; NEUTRAL CURRENTS; QUARKS; SU-2 GROUPS; U-1 GROUPS; ALGEBRAIC CURRENTS; COMPOSITE MODELS; CURRENTS; ELEMENTARY PARTICLES; FERMIONS; INVARIANCE PRINCIPLES; LIE GROUPS; MATHEMATICAL MODELS; PARTICLE MODELS; POSTULATED PARTICLES; QUARK MODEL; SU GROUPS; SYMMETRY; SYMMETRY GROUPS; U GROUPS; 662120* - General Theory of Particles & Fields- Symmetry, Conservation Laws, Currents & Their Properties- (1992-)

Citation Formats

Umemura, I, and Yamamoto, K. Implications of the lepton--Higgs-boson generation symmetry in a supersymmetric left-right gauge model. United States: N. p., 1992. Web. doi:10.1103/PhysRevD.46.418.
Umemura, I, & Yamamoto, K. Implications of the lepton--Higgs-boson generation symmetry in a supersymmetric left-right gauge model. United States. https://doi.org/10.1103/PhysRevD.46.418
Umemura, I, and Yamamoto, K. 1992. "Implications of the lepton--Higgs-boson generation symmetry in a supersymmetric left-right gauge model". United States. https://doi.org/10.1103/PhysRevD.46.418.
@article{osti_7206100,
title = {Implications of the lepton--Higgs-boson generation symmetry in a supersymmetric left-right gauge model},
author = {Umemura, I and Yamamoto, K},
abstractNote = {Some remarkable issues are investigated concerning an unconventional type of supersymmetric left-right gauge model, where the fields with different lepton numbers are accommodated together in the SU(2){sub {ital R}} multiplets. The phenomenology of the model is restricted by the generation symmetry in the lepton--Higgs-boson sector which is required to suppress enough the flavor-changing neutral currents mediated by the Higgs fields. The mass matrix of the neutralinos, in particular, has a certain form depending on the possible choices of the generation symmetry. The lightest state {ital {tilde N}}{sub LSP} is then found to consist almost entirely of the SU(2){sub {ital L}}{times}U(1){sub {ital Y}}-singlet neutralinos which form the SU(2){sub {ital R}} doublets together with the right-handed charged leptons. {ital {tilde N}}{sub LSP} acquires a mass at most {similar to}1 GeV or even much smaller for most choices of the generation symmetry. It hence may be identified with the lightest supersymmetric particle. Some stringent constraints on the model are obtained from the astrophysical and cosmological effects of such an {ital {tilde N}}{sub LSP}. The decays of superparticles would also look somewhat different, where {ital {tilde N}}{sub LSP} is produced in the final state.},
doi = {10.1103/PhysRevD.46.418},
url = {https://www.osti.gov/biblio/7206100}, journal = {Physical Review, D (Particles Fields); (United States)},
issn = {0556-2821},
number = ,
volume = 46:1,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 1992},
month = {Wed Jul 01 00:00:00 EDT 1992}
}