Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-03-10
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages
Scientific paper
10.1016/j.physletb.2007.04.002
We propose a one-parameter theory for gauge mediation of supersymmetry (SUSY) breaking. The spectrum of SUSY particles such as squarks and sleptons in the SUSY standard-model and the dynamics of SUSY-breaking sector are, in principle, determined only by one parameter in the theory, that is, the mass of messengers. Above the messenger threshold all gauge coupling and Yukawa coupling constants in the SUSY-breaking sector are on the infrared fixed point. We find that the present theory may predict a split spectrum of the standard-model SUSY particles, m_{gaugino} < m_{sfermion}, where m_{gaugino} and m_{sfermion} are SUSY-breaking masses for gauginos and squarks/sleptons, respectively.
Ibe Masahiro
Nakayama Yu
Yanagida Takayuki
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