Triplet Scalars and Dark Matter at the LHC
Nov, 2008
40 pages
Published in:
- Phys.Rev.D 79 (2009) 055024
e-Print:
- 0811.3957 [hep-ph]
Report number:
- NPAC-08-20,
- MADPH-08-1517,
- IPMU-08-0091
View in:
Citations per year
Abstract: (arXiv)
We investigate the predictions of a simple extension of the Standard Model where the Higgs sector is composed of one doublet and one real triplet. We discuss the general features of the model, including its vacuum structure, theoretical and phenomenological constraints, and expectations for Higgs collider studies. The model predicts the existence of a pair of light charged scalars and, for vanishing triplet vacuum expectation value, contains a cold dark matter candidate. When the latter possibility occurs, the charged scalars are long-lived, leading to a prediction of distinctive single charged track with missing transverse energy or double charged track events at the LHC. The model predicts a significant excess of two-photon events compared to SM expectations due to the presence of a light charged scalar.- gauge field theory: SU(3) x SU(2) x U(1)
- Higgs particle: multiplet
- doublet: 1
- triplet: 1
- transverse energy: missing-energy
- electroweak interaction: symmetry breaking
- dark matter
- scalar particle: mass spectrum
- vacuum state
- anti-p p: interaction
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