Unification and Phenomenology of F-Theory GUTs with U(1)_PQ

Details Unification and Phenomenology of F-Theory GUTs with U(1)_PQ Unification and Phenomenology of F-Theory GUTs with U(1)_PQ

2011-09-22

arxiv.org/abs/1109.4958v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

46 pages, 15 figures

Scientific paper

We undertake a phenomenological study of SU(5) F-theory GUT models with an additional U(1)_{PQ} symmetry. In such models, breaking SU(5) with hypercharge flux leads to the presence of non-GUT multiplets in the spectrum. We study the effect these have on the unification of gauge couplings, including two-loop running as well as low- and high-scale threshold corrections. We use the requirement of unification to constrain the size of thresholds from KK modes of SU(5) gauge and matter fields. Assuming the non-GUT multiplets play the role of messengers of gauge mediation leads to controlled non-universalities in the sparticle spectrum while maintaining grand unification, and we study the LHC phenomenology of this scenario. We find that the MSSM spectrum may become compressed or stretched out {by up to a factor of three} depending on the distribution of hypercharge flux. We present a set of benchmark points whose production cross-sections and decays we investigate, and argue that precision kinematic edge measurements will allow the LHC to distinguish between our model and mGMSB.

Affiliated with

Also associated with

No associations

Rating

Unification and Phenomenology of F-Theory GUTs with U(1)_PQ 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 Unification and Phenomenology of F-Theory GUTs with U(1)_PQ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unification and Phenomenology of F-Theory GUTs with U(1)_PQ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-723786