May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1015...36k&link_type=abstract
GRAND UNIFIED THEORIES: CURRENT STATUS AND FUTURE PROSPECTS: An International Workshop. AIP Conference Proceedings, Volume 1015
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Unified Theories And Models Of Strong And Electroweak Interactions, Dark Matter, Other Particles, Non-Standard-Model Higgs Bosons
Scientific paper
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.
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