Year: 2008
Type: article
Abstract: Once a parity is introduced in unparticle physics, under which unparticle provided in a hidden conformal sector is odd while all Standard Model particles are even, unparticle can be a suitable candidate for the cold dark matter (CDM) in the present universe through its coupling to the Standard Model Higgs doublet. We find that for Higgs boson mass in the range, 114.4 GeV≲mh≲250 GeV, the relic abundance of unparticle with mass 50 GeV≲mU≲80 GeV can be consistent with the currently observed CDM density. In this scenario, Higgs boson with mass mh≲160 GeV dominantly decays into a pair of unparticles and such an invisible Higgs boson may be discovered in future collider experiments.
Source: Physics Letters B
Authors: Tatsuru Kikuchi, Nobuchika Okada
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid:
OpenAlex ID: W2062201862