Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-12-11
Phys.Rev.D81:083538,2010
Physics
High Energy Physics
High Energy Physics - Theory
10 pages, 3 Figures, Latex
Scientific paper
10.1103/PhysRevD.81.083538
In many moduli stabilization schemes in string theory, the scale of inflation appears to be of the same order as the scale of supersymmetry breaking. For low-scale supersymmetry breaking, therefore, the scale of inflation should also be low, unless this correlation is avoided in specific models. We explore such a low-scale inflationary scenario in a racetrack model with a single modulus in type IIB string theory. Inflation occurs near a point of inflection in the K\"ahler modulus potential. Obtaining acceptable cosmological density perturbations leads to the introduction of magnetized D7-branes sourcing non-perturbative superpotentials. The gravitino mass, m_{3/2}, is chosen to be around 30 TeV, so that gravitinos that are produced in the inflaton decay do not affect big-bang nucleosynthesis. Supersymmetry is communicated to the visible sector by a mixture of anomaly and modulus mediation. We find that the two sources contribute equally to the gaugino masses, while scalar masses are decided mainly by anomaly contribution. This happens as a result of the low scale of inflation and can be probed at the LHC.
Allahverdi Rouzbeh
Dutta Bhaskar
Sinha Kuver
No associations
LandOfFree
Low-scale Inflation and Supersymmetry Breaking in Racetrack Models 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 Low-scale Inflation and Supersymmetry Breaking in Racetrack Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-scale Inflation and Supersymmetry Breaking in Racetrack Models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-468845