Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2001-04-16
Nucl.Phys. B619 (2001) 603-614
Physics
High Energy Physics
High Energy Physics - Theory
Scientific paper
10.1016/S0550-3213(01)00538-7
It has recently been argued that non--BPS brane world scenarios can reproduce the small value of the cosmological constant that seems to have been measured. Objections against this proposal are discussed and necessary (but not sufficient) conditions are stated under which it may work. At least n=2 extra dimensions are needed. Also, the mass matrix in the supergravity sector must satisfy $Str M^2=0$. Moreover, the proposal can be ruled out experimentally if Newton's constant remains unchanged down to scales of 10 micrometers. If, on the other hand, such a ``running Newton constant'' is observed, it could provide crucial experimental input for superstring phenomenology.
No associations
LandOfFree
Brane Supersymmetry Breaking and the Cosmological Constant: Open Problems 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 Supersymmetry Breaking and the Cosmological Constant: Open Problems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brane Supersymmetry Breaking and the Cosmological Constant: Open Problems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-683739