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High Energy Physics - Phenomenology

arXiv:0711.1506 (hep-ph)
[Submitted on 9 Nov 2007 (v1), last revised 6 Jun 2008 (this version, v3)]

Title:Unparticle Dark Matter

Authors:Tatsuru Kikuchi, Nobuchika Okada
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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 < m_h < 250 GeV, the relic abundance of unparticle with mass 50 GeV < m_U < 80 GeV can be consistent with the currently observed CDM density. In this scenario, Higgs boson with mass m_h < 160 GeV dominantly decays into a pair of unparticles and such an invisible Higgs boson may be discovered in future collider experiments.
Comments: 4 pages, 3 figures; version to appear in Phys. Lett. B
Subjects: High Energy Physics - Phenomenology (hep-ph); Astrophysics (astro-ph); High Energy Physics - Experiment (hep-ex); High Energy Physics - Theory (hep-th)
Report number: KEK-TH-1200
Cite as: arXiv:0711.1506 [hep-ph]
  (or arXiv:0711.1506v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.0711.1506
Journal reference: Phys.Lett.B665:186-189,2008
Related DOI: https://doi.org/10.1016/j.physletb.2008.06.021

Submission history

From: Tatsuru Kikuchi [view email]
[v1] Fri, 9 Nov 2007 17:21:49 UTC (140 KB)
[v2] Thu, 15 Nov 2007 05:08:48 UTC (140 KB)
[v3] Fri, 6 Jun 2008 03:55:38 UTC (137 KB)
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