Partially (in)visible Higgs decays at the LHC

Englert, C., Spannowsky, M. and Wymant, C. (2012) Partially (in)visible Higgs decays at the LHC. Physics Letters B, 718(2), pp. 538-544. (doi:10.1016/j.physletb.2012.11.008)

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Publisher's URL: http://dx.doi.org/10.1016/j.physletb.2012.11.008

Abstract

Both ATLAS and CMS have reported a discovery of a Standard Model-like Higgs boson H of mass around 125 GeV. Consistency with the Standard Model implies the non-observation of non-SM-like decay modes of the newly discovered particle. Sensitivity to such decay modes, especially when they involve partially invisible final states is currently beyond scrutiny of the LHC. We systematically study such decay channels in the form of H→AA→jets+missing energy, with A a light scalar or pseudo-scalar, and analyze to what extent these exotic branching fractions can be constrained by direct measurements at the LHC. While the analysis is challenging, constraints as good as BR≲10% can be obtained.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Englert, Dr Christoph
Authors: Englert, C., Spannowsky, M., and Wymant, C.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier
ISSN:0031-9163
ISSN (Online):0370-2693

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