Yukawa unification and neutralino dark matter in SU(4){sub c}xSU(2){sub L}xSU(2){sub R}
Journal Article
·
· Physical Review. D, Particles Fields
- Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)
We consider a left-right symmetric SU(4){sub c}xSU(2){sub L}xSU(2){sub R} (4-2-2) model with gravity mediated supersymmetry breaking. We find that with 4-2-2 compatible nonuniversal gaugino masses, t-b-{tau} Yukawa coupling unification is consistent with neutralino dark matter abundance and with constraints from collider experiments (except (g-2){sub {mu}}). The gluino mass lies close to that of the lightest neutralino, so that the gluino coannihilation channel plays an important role in determining the neutralino relic abundance. By relaxing the Yukawa unification constraint we find stau and stop masses as low as 200-220 GeV. We highlight some benchmark points for these cases with 40{<=}tan{beta}{<=}58.
- OSTI ID:
- 21300876
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sparticle spectroscopy with neutralino dark matter from t-b-{tau} quasi-Yukawa unification
Coannihilation scenarios and particle spectroscopy in SU(4){sub c}xSU(2){sub L}xSU(2){sub R}
Journal Article
·
Sat Oct 15 00:00:00 EDT 2011
· Physical Review. D, Particles Fields
·
OSTI ID:21607948
Coannihilation scenarios and particle spectroscopy in SU(4){sub c}xSU(2){sub L}xSU(2){sub R}
Journal Article
·
Sun Nov 01 00:00:00 EDT 2009
· Physical Review. D, Particles Fields
·
OSTI ID:21325501