Hundi, Raghavendra Srikanth ; Mukhopadhyaya, Biswarup ; Nyffeler, Andreas (2007) Invisible Higgs boson decay in the littlest Higgs model with T-parity Physics Letters B, 649 (4). pp. 280-286. ISSN 0370-2693
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Official URL: https://www.sciencedirect.com/science/article/pii/...
Related URL: http://dx.doi.org/10.1016/j.physletb.2007.04.027
Abstract
We study the invisible decay of the Higgs boson into a pair of stable, heavy photons, H → AHAH, in the littlest Higgs model with T-parity. For a symmetry breaking scale of f = 450 Gev, the branching ratio H → AHAH can be as high as 93% for Higgs masses below 150 GeV. For f = 500 GeV, the invisible branching ratio is about 75% in the Higgs mass range 135-150 GeV and 10(5.5)% for mH = 200(600) GeV. It drops to a few percent for f larger than 600 GeV. We have found regions in parameter space, allowed by the electroweak precision data, with such low values of f for 115 < mH < 650 GeV.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 114655 |
| Deposited On: | 05 Jun 2018 06:12 |
| Last Modified: | 05 Jun 2018 06:12 |
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