TY - JOUR
T1 - A conformal gauge mediation and dark matter with only one mass parameter
AU - Yanagida, Tsutomu T.
AU - Yonekura, Kazuya
N1 - Funding Information:
We would like to thank K. Hamaguchi, E. Nakamura, R. Sato and S. Shirai for useful discussions. The work of K.Y. is supported in part by JSPS Research Fellowships for Young Scientists . This work was supported by World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan.
PY - 2010/10
Y1 - 2010/10
N2 - If the supersymmetry (SUSY) is a solution to the hierarchy problem, it is puzzling that any SUSY particle has not been discovered yet. We show that there is a low-scale conformal gauge mediation model which contains all necessary ingredients, i.e. not only a SUSY-breaking dynamics and a gauge mediation mechanism, but also a candidate for the dark matter. The model has only one free mass parameter, that is, the mass for messengers. In this model, the dark matter is provided by a composite particle in the SUSY-breaking sector, and the observed value of the dark matter density uniquely fixes the mass of messengers at the order of 102 TeV. Then, the sfermion and gaugino masses are fixed to be of order 102-103 GeV without any arbitrariness, thus the SUSY particles are expected not to be discovered at the Tevatron or LEP, while having a discovery possibility at the LHC.
AB - If the supersymmetry (SUSY) is a solution to the hierarchy problem, it is puzzling that any SUSY particle has not been discovered yet. We show that there is a low-scale conformal gauge mediation model which contains all necessary ingredients, i.e. not only a SUSY-breaking dynamics and a gauge mediation mechanism, but also a candidate for the dark matter. The model has only one free mass parameter, that is, the mass for messengers. In this model, the dark matter is provided by a composite particle in the SUSY-breaking sector, and the observed value of the dark matter density uniquely fixes the mass of messengers at the order of 102 TeV. Then, the sfermion and gaugino masses are fixed to be of order 102-103 GeV without any arbitrariness, thus the SUSY particles are expected not to be discovered at the Tevatron or LEP, while having a discovery possibility at the LHC.
KW - Dark matter
KW - Gauge mediation
KW - Supersymmetry breaking
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U2 - 10.1016/j.physletb.2010.08.040
DO - 10.1016/j.physletb.2010.08.040
M3 - Article
AN - SCOPUS:77956874339
VL - 693
SP - 281
EP - 286
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3
ER -