Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-08-03
Phys. Rev. D 84: 106009, 2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
Expanded discussion of Z' boson phenomenology. Accepted for publication to Physical Review D. arXiv admin note: text overlap w
Scientific paper
10.1103/PhysRevD.84.106009
We demonstrate the existence of an extra nonanomalous U(1) gauge symmetry in a three-generation Pati-Salam model constructed with intersecting D6-branes in Type IIA string theory on a T^6/(Z_2 \times Z_2) orientifold. This extra U(1) forbids all dimension-4, 5, and 6 operators which mediate proton decay in the MSSM. Moreover, this results in the effective promotion of baryon and lepton number to local gauge symmetries, which can potentially result in leptophobic and leptophilic $Z'$ bosons observable at the LHC. Furthermore, it is not necessary to invoke R-parity to forbid the dimension-4 operators which allow rapid proton decay. However, R-parity may arise naturally from a spontaneously broken U(1)_{B-L}. Assuming the presence of R-parity, we then study the direct detection cross-sections for neutralino dark matter, including the latest constraints from the XENON100 experiment. We find that these limits are now within required range necessary to begin testing the model.
Maxin James A.
Mayes Van E.
Nanopoulos Dimitri V.
No associations
LandOfFree
Proton Stability and Dark Matter in a Realistic String MSSM 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 Proton Stability and Dark Matter in a Realistic String MSSM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proton Stability and Dark Matter in a Realistic String MSSM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-664413