LHC implications of the WIMP miracle and grand unification

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.015006· OSTI ID:21503894

Kilic, Can ^[1]; Koepp, Karoline; Okui, Takemichi ^[2]

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1. Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854 (United States)
2. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)

With the assumptions that dark matter consists of an electroweak triplet and that the gauge couplings unify at a high scale, we identify robust phenomenological trends of possible matter contents at the TeV scale. In particular, we expect new colored states within the LHC reach that can have Yukawa couplings {lambda} to quarks and the Higgs. We investigate the collider signatures that are characteristic of all such models by adopting the model with the simplest matter content as a benchmark. The {lambda} couplings are constrained by flavor/CP physics. In the largest portion of the allowed parameter space the new colored particles are stable on collider time scales, hence appearing as R hadrons, for which there is discovery potential at the early LHC ({radical}(s)=7 TeV, 1 fb{sup -1}). Flavor/CP constraints nevertheless do allow a sizable range of {lambda} where the new colored particles decay promptly, providing a new Higgs production channel with a cross section governed by the strong interaction. Studying the case of h{yields}WW, we show that it is possible for the Higgs production from this new channel to be discovered before that from the standard model at the LHC.

• OSTI ID: 21503894
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevD.83.015006; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BENCHMARKS
CERN LHC
COUPLING
CP INVARIANCE
CROSS SECTIONS
FLAVOR MODEL
HADRONS
HIGGS BOSONS
HIGGS MODEL
NONLUMINOUS MATTER
PARTICLE DECAY
QUARKS
STANDARD MODEL
STRONG INTERACTIONS
TEV RANGE
TRIPLETS
WEAK INTERACTIONS
YUKAWA POTENTIAL
ACCELERATORS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
CYCLIC ACCELERATORS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
INTERACTIONS
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
MATTER
MULTIPLETS
NUCLEAR POTENTIAL
PARTICLE MODELS
POSTULATED PARTICLES
POTENTIALS
QUANTUM FIELD THEORY
QUARK MODEL
STORAGE RINGS
SYNCHROTRONS
UNIFIED GAUGE MODELS