Unparticle Dark Matter

Journal Article · Tue May 13 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2939058· OSTI ID:21143448

Kikuchi, Tatsuru ^[1]

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1. Theory Division, KEK, 1-1 Oho, Tsukuba, 305-0801 (Japan)

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 < or approx. m{sub h} < or approx. 250 GeV, the relic abundance of unparticle with mass 50 GeV < or approx. m{sub U} < or approx. 80 GeV can be consistent with the currently observed CDM density. In this scenario, Higgs boson with mass m{sub h} < or approx. 160 GeV dominantly decays into a pair of unparticles and such an invisible Higgs boson may be discovered in future collider experiments.

• OSTI ID: 21143448
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1015; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COUPLING
DENSITY
GEV RANGE
HIGGS BOSONS
HIGGS MODEL
NONLUMINOUS MATTER
PARITY
PARTICLE DECAY
PARTICLE IDENTIFICATION
REST MASS
STANDARD MODEL
UNIVERSE