Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-10-30
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, 5 figures, Based on plenary talks at Neutrino 08, Christchurch, New Zealand and Physics at LHC - 2008, Split, Croatia
Scientific paper
It is often said that neutrino mass is a window to a new physics beyond the standard model (SM). This is certainly true if neutrinos are Majorana particles since the SM with Majorana neutrino mass is not a complete theory. The classical text-book test of neutrino Majorana mass, the neutrino-less double beta decay depends on the completion, and thus cannot probe neutrino mass. As pointed out already more than twenty five years ago, the colliders such as Tevatron or LHC offer a hope of probing directly the origin of neutrino Majorana mass through lepton number violating production of like sign lepton pairs. I discuss this in the context of all three types of seesaw mechanism. I then discuss in detail the situation in $L-R$ symmetric theories, which led originally to the seesaw and which incorporates naturally both type I and type II. A $W_R$ gauge boson with a mass in a few TeV region could easily dominate the neutrino-less double beta decay, and its discovery at LHC would have spectacular signatures of parity restoration and lepton number violation. At the end I give an example of a predictive SU(5) grand unified theory that results in a hybrid type I and III seesaw with a light fermion triplet below TeV scale.
No associations
LandOfFree
LHC and the origin of neutrino mass 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 LHC and the origin of neutrino mass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LHC and the origin of neutrino mass will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-149866