Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-09-11
Phys.Rev.D78:115017,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, LaTeX, 5 figures; typos corrected, references added
Scientific paper
10.1103/PhysRevD.78.115017
We study the properties and production mechanisms of color-octet scalars at the LHC. We focus on the single production of both charged and neutral members of an (8,2)_1/2 doublet through bottom quark initial states. These channels provide a window to the underlying Yukawa structure of the scalar sector. Color-octet scalars naturally appear in grand unified theories based on the SU(5) gauge symmetry. In the context of adjoint SU(5) these fields are expected to be light to satisfy constraints coming from unification and proton decay, and may have TeV-scale masses. One combination of their couplings is defined by the relation between the down-quark and charged-lepton Yukawa couplings. Observation of these states at the LHC gives an upper bound on the proton lifetime if they truly arise from this grand unified theory. We demonstrate that TeV-mass scalars can be observed over background at the LHC using boosted top quark final states, and study how well the scalar Yukawa parameters can be measured.
Gavin Ryan
McElmurry Thomas
Perez Pavel Fileviez
Petriello Frank
No associations
LandOfFree
Grand Unification and Light Color-Octet Scalars at the LHC 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 Grand Unification and Light Color-Octet Scalars at the LHC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grand Unification and Light Color-Octet Scalars at the LHC will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-368514