Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-03-10
Phys.Lett. B615 (2005) 120-126
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, 3 figures
Scientific paper
10.1016/j.physletb.2005.04.008
In the light of recent experimental data on gaugino searches, we revisit the direct-transmission model of dynamical supersymmery breaking with the gravitino mass m_{\tilde{G}}\leq 16 eV, which does not have any cosmological or astrophysical problems. We find that in the consistent regions of parameter space, the model predicts not only upper bounds on superparticle masses (1.1 TeV, 320 GeV, 160 GeV, 5 TeV, 1.5 TeV and 700 GeV for gluino, Wino, Bino, squarks, left-handed sleptons and right-handed sleptons, respectively), but also a mass of the lightest messenger particle in the range of 10-50 TeV. The lightest messenger particle can naturally be a messenger sneutrino. Therefore, this may suggest that the messenger sneutrino could be the dark matter, as proposed recently by Hooper and March-Russel to account for the gamma-ray spectrum from the galactic center observed by HESS experiment.
Ibe Masahiro
Tobe Kazuhiro
Yanagida Tsutomu
No associations
LandOfFree
A Gauge-Mediation Model with a Light Gravitino of Mass O(10) eV and the Messenger Dark Matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Gauge-Mediation Model with a Light Gravitino of Mass O(10) eV and the Messenger Dark Matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Gauge-Mediation Model with a Light Gravitino of Mass O(10) eV and the Messenger Dark Matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-345293