1997/04/13 by Glennys R. Farrar, Farrar, Glennys R.
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9704310
Invited talk at Colloque SUSY 95, Paris, May 1995. Published in the Proceedings. Apparently never put on net. 8 pages. latex
arxiv created 1997/04/13 · arxiv updated 2009/11/30
Several supersymmetry breaking mechanisms do not produce dimension-3 operators. I show here that this scenario is consistent with present observations and has several significant virtues: i) When there are no dimension-3 SUSY-breaking operators there is no SUSY-CP problem. ii) SUSY-breaking need not occur through gauge singlets, so that the cosmological problems often encountered in hidden sector SUSY-breaking can be avoided. iii) Photino and gluino and R-hadron masses are naturally consistent with relic photinos providing the required dark matter density. Requiring spontaneous electroweak symmetry implies that scalar masses are mostly in the ∼ 100 GeV range. The gluino and photino are massless at tree level. At 1-loop, the gluino and photino masses at the ew scale are predicted to be m\gluino∼ 10 - 600 MeV and m\photino ∼ 100 - 1400 MeV. New hadrons with mass ∼ 1 (1)/(2) GeV are predicted and described. The ``extra'' flavor singlet pseudoscalar in the ι(1440) region which has been observed in several experiments is naturally interpreted as the mainly-\gluino \gluino bound state which gets its mass via the QCD anomaly. Its superpartner, a gluon-gluino bound state, would be the lightest R-hadron. For the most interesting portions of parameter space the R0 lifetime is 10-6 - 10-10 sec, so existing searches would not have been sensitive to it. Search strategies and other consequences of the scenario are briefly mentioned.