Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-12-11
Phys.Lett. B423 (1998) 311-318
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 1 figure; Version to be published in Phys. Lett. B
Scientific paper
10.1016/S0370-2693(98)00129-4
The effect of spin-0 goldstino superpartners is considered on the nucleosynthesis bounds arising when a superlight gravitino appears as an effective massless neutrino species. When the scalar and pseudoscalar superpartners are relativistic they will decouple at much later times than the goldstino and consequently will be the dominant effect when obtaining a nucleosynthesis bound on the scale of supersymmetry breaking. Assuming that the scalar and pseudoscalar fields decouple at a temperature no later than O(100) MeV, then typically the scale of supersymmetry breaking \sqrt{F} > 60 TeV. This corresponds to a lower bound on the gravitino mass m_{3/2} > 1 eV.
No associations
LandOfFree
The Role of Scalar and Pseudoscalar Fields in Determining Nucleosynthesis Bounds on the Scale of Supersymmetry Breaking 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 The Role of Scalar and Pseudoscalar Fields in Determining Nucleosynthesis Bounds on the Scale of Supersymmetry Breaking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Role of Scalar and Pseudoscalar Fields in Determining Nucleosynthesis Bounds on the Scale of Supersymmetry Breaking will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-527323