Dark matter and Higgs boson collider implications of fermions in an Abelian-gauged hidden sector

Shrihari Gopalakrishna, Seung J. Lee, James D. Wells

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

We add fermions to an Abelian-gauged hidden sector. We show that the lightest can be the dark matter with the right thermal relic abundance, and discovery is within reach of upcoming dark matter detectors. We also show that these fermions change Higgs boson phenomenology at the Large Hadron Collider (LHC), and in particular could induce a large invisible width to the lightest Higgs boson state. Such an invisibly decaying Higgs boson can be discovered with good significance in the vector boson fusion channel at the LHC.

Original languageEnglish
Pages (from-to)88-93
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume680
Issue number1
DOIs
Publication statusPublished - 2009 Sept 14
Externally publishedYes

Bibliographical note

Funding Information:
We thank S. Dawson, B. Kilgore, F. Paige, A. Rajaraman, C. Sturm, T. Tait and C. Wagner for valuable discussions. We also thank A. Pukhov for help with micrOMEGAs. S.G. is supported in part by the DOE grant DE-AC02-98CH10886 (BNL). We thank KITP, Santa Barabara, for hospitality during the “Physics of the LHC” workshop where part of this work was carried out.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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