Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-12-06
Nucl.Phys. B607 (2001) 77-98
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version to appear in Nucl.Phys.B. 28 pages, Latex
Scientific paper
10.1016/S0550-3213(01)00220-6
We propose a mechanism for mediating supersymmetry breaking in Type I string constructions. The basic set-up consists of a system of three D-branes: two parallel D-branes, a matter D-brane and a source D-brane, with supersymmetry breaking communicated via a third D-brane, the mediating D-brane, which intersects both of the parallel D-branes. We discuss an example in which the first and second family matter fields correspond to open strings living on the intersection of the matter D-brane and mediating D-brane, while the gauge fields, Higgs doublets and third family matter fields correspond to open strings living on the mediating D-brane. As in gaugino mediated models, the gauginos and Higgs doublets receive direct soft masses from the source brane, and flavour-changing neutral currents are naturally suppressed since the first and second family squarks and sleptons receive suppressed soft masses. However, unlike the gaugino mediated model, the third family squarks and sleptons receive unsuppressed soft masses, resulting in a very distinctive spectrum with heavier stops, sbottoms and staus.
King Stephen F.
Rayner D. A. J.
No associations
LandOfFree
Brane Mediated 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 Brane Mediated Supersymmetry Breaking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brane Mediated Supersymmetry Breaking will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-579271