Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-05-29
Phys.Lett.B646:258-264,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, including 3 figures
Scientific paper
10.1016/j.physletb.2007.01.020
The proton decays too rapidly in supersymmetric theories if a dimension-4 operator \bar{5}.10.\bar{5} exists in the superpotential. The conventional idea is to impose the R-parity to kill this operator with a stable lightest supersymmetry particle (LSP) as a direct consequence. However, the SUSY-zero mechanism is also able to kill the operator without an unbroken R-parity. In this article, we provide a firm theoretical justification for the absence of the dimension-4 proton decay operator under the SUSY-zero mechanism, by using some input from string theory. The LSP may be unstable without the R-parity and, indeed, some dimension-5 R-parity violating operators may be generated in effective theories. This suggests that the dark matter is an axion in this string theory inspired model. An insight on the SUSY-zero mechanism is also obtained.
Tatar Radu
Watari Taizan
No associations
LandOfFree
A Stable Proton without R-Parity--Implications for the LSP-- 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 A Stable Proton without R-Parity--Implications for the LSP--, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Stable Proton without R-Parity--Implications for the LSP-- will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-168059