R-symmetry in MSSM and beyond

Journal Article · Mon Oct 19 04:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.56595· OSTI ID:21202133

Shafi, Q ^[1]

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1. Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)

This talk explores the role that U(1) (or some discrete) R-symmetries can play in the construction of realistic supersymmetric models. By exploiting U(1){sub R}, the first part attempts to obtain a more robust version of MSSM in which neutrinos are massive and the resolution of the {mu} and strong CP problems is intimately related. The second part goes beyond the MSSM gauge group by considering SU(3){sub c}xSU(2){sub L}xSU(2){sub R}xU(1){sub B-L}, supplemented by U(1){sub R}. The parameter tan {beta}{approx_equal}m{sub t}/m{sub b}, which allows one to predict the top quark mass in the right ball park, and also explain why the 'standard model' higgs h deg. has so far not been found at LEPII. Its tree level mass is M{sub Zo} and, after radiative corrections, one expects m{sub ho} {approx}110{+-}10 GeV. This particular scheme also resolves the {mu} problem of MSSM and enables one to realize an inflationary epoch with the spectral index of density fluctuations very close to unity (n{approx_equal}0.98)

• OSTI ID: 21202133
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 444; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
GEV RANGE
HIGGS BOSONS
HIGGS MODEL
NEUTRINOS
PROTONS
QUANTUM CHROMODYNAMICS
RADIATIVE CORRECTIONS
RESOLUTION
REST MASS
STANDARD MODEL
SU-2 GROUPS
SU-3 GROUPS
SUPERSYMMETRY
T QUARKS
U-1 GROUPS