Sparticle spectroscopy and phenomenology in a new class of gauge-mediated supersymmetry-breaking models

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.5466· OSTI ID:365344

Chacko, Z

Recently, a proposal [R. N. Mohapatra and S. Nandi, Phys. Rev. Lett. {bold 79}, 181 (1997)] was made for a new class of gauge-mediated supersymmetry-breaking (GMSB) models where the standard model gauge group is embedded into the gauge group SU(2){sub L}{times}U(1){sub I{sub 3R}}{times}U(1){sub B{minus}L} [or SU(2){sub L}{times}SU(2){sub R}{times}U(1){sub B{minus}L}] at the supersymmetry-breaking scale {Lambda}. Supersymmetry breaking is transmitted to the visible sector via the same fields that are responsible for gauge symmetry breaking rather than by vector-like quarks and leptons as in the conventional GMSB models. These models have a number of attractive properties such as exact R-parity conservation, nonvanishing neutrino masses and a solution to the SUSY CP (and strong CP) problem. In this paper, we present the detailed sparticle spectroscopy and phenomenological implications of the various models of this class that embody the general spirit of our previous work but use a larger variety of messenger fields. A distinct characteristic of this class of models is that unlike the conventional GMSB ones, the lightest neutralino is always the NLSP leading to photonic events in the colliders. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 365344
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CP INVARIANCE
GAUGE INVARIANCE
MASS
NEUTRINOS
P INVARIANCE
PARITY
SPARTICLES
SPECTROSCOPY
STANDARD MODEL
SU-2 GROUPS
SUPERSYMMETRY
SYMMETRY BREAKING
U-1 GROUPS
UNIFIED GAUGE MODELS