A viable supersymmetric model with UV insensitive anomaly mediation

Journal Article · Tue Dec 14 00:00:00 EST 2004 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.70.075012· OSTI ID:962959

Ibe, Masahiro; Kitano, Ryuichiro; Murayama, Hitoshi

We propose an electroweak model which is compatible with the UV insensitive anomaly mediated supersymmetry breaking. The model is an extension of the NMSSM by adding vector-like matter fields which can drive the soft scalar masses of the singlet Higgs field negative and the successful electroweak symmetry breaking is achieved. Viable parameter regions are found to preserve perturbativity of all the coupling constants up to the Planck scale. With this success, the model becomes a perfect candidate of physics beyond the standard model without the FCNC and CP problem. The cosmology is also quite interesting. The lightest neutralino is the wino which is a perfect cold dark matter candidate assuming the non-thermal production from the gravitino decay. There is no gravitino problem because it decays before the BBN era, and thus the thermal leptogenesis works. The cosmological domain wall problem inherent in the NMSSM is absent since the Z_3 symmetry is broken by the QCD instanton effect in the presence of the vector-like quarks. We also briefly comment on a possible solution to the strong CP problem a la the Nelson-Barr mechanism.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Physics Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 962959
• Report Number(s): LBNL-59171; PRVDAQ; TRN: US0902980
• Journal Information: Physical Review D, Related Information: Journal Publication Date: 6 April 2005; ISSN 1550-7998
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGY
COUPLING CONSTANTS
DECAY
INSTANTONS
NONLUMINOUS MATTER
PHYSICS
PRODUCTION
QUANTUM CHROMODYNAMICS
QUARKS
SCALARS
STANDARD MODEL
SUPERSYMMETRY
SYMMETRY
SYMMETRY BREAKING
WEINBERG-SALAM GAUGE MODEL
electroweak interaction
model supersymmetry
symmetry breaking