Year: 2011
Type: article
Abstract: If low-energy supersymmetry is the solution to the hierarchy problem, it is a puzzle why supersymmetric particles have not been observed experimentally to date. We show that supersymmetric particles in the TeV region can be explained if the fundamental cut-off scale of the theory is smaller than the 4-dimensional Planck scale and if thermal leptogenesis is the source of the observed baryon asymmetry. The supersymmetric particles such as sfermions and gauginos are predicted to be in the TeV region, while the gravitino is the LSP with mass of O(100) GeV and is a good candidate for dark matter. Interestingly, the cosmological moduli problem can be solved in the theory with the low cut-off scale.
Source: Physics Letters B
Authors: Fuminobu Takahashi, Tsutomu T. Yanagida
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid:
Awards: G281656809, The exploration of extradimensions in terms of a variety of cosmophysical phenomena caused by axionic moduli, G3439538557, G5473262123, G7874054138, Research on inflationary universe and density perturbation based on, New particle physics models and cosmological scenarios based on the LHC experiments
OpenAlex ID: W2009137278