LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet

Details LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet

2007-06-28

arxiv.org/abs/0706.4311v1

Phys.Rev.D77:035005,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

39 pages, 11 figures, 2 tables

Scientific paper

10.1103/PhysRevD.77.035005

Gauge singlet extensions of the Standard Model (SM) scalar sector may help remedy its theoretical and phenomenological shortcomings while solving outstanding problems in cosmology. Depending on the symmetries of the scalar potential, such extensions may provide a viable candidate for the observed relic density of cold dark matter or a strong first order electroweak phase transition needed for electroweak baryogenesis. Using the simplest extension of the SM scalar sector with one real singlet field, we analyze the generic implications of a singlet-extended scalar sector for Higgs boson phenomenology at the Large Hadron Collider (LHC). We consider two broad scenarios: one in which the neutral SM Higgs and singlet mix and the other in which no mixing occurs and the singlet can be a dark matter particle. For the first scenario, we analyze constraints from electroweak precision observables and their implications for LHC Higgs phenomenology. For models in which the singlet is stable, we determine the conditions under which it can yield the observed relic density, compute the cross sections for direct detection in recoil experiments, and discuss the corresponding signatures at the LHC.

Affiliated with

Also associated with

No associations

Rating

LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet 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 Phenomenology of an Extended Standard Model with a Real Scalar Singlet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-681344