Little Higgs dark matter

By A. Birkedal, Andrew Noble, M. Perelstein, Andrew Spray. 2006

155 citations recorded by the source corpus.

The introduction of T parity dramatically improves the consistency of little Higgs models with precision electroweak data, and renders the lightest T-odd particle (LTP) stable. In the littlest Higgs model with T parity, the LTP is typically the T-odd heavy photon, which is weakly interacting and can play the role of dark matter. We analyze the relic abundance of the heavy photon, including its coannihilations with other T-odd particles, and map out the regions of the parameter space where it can account for the observed dark matter. We evaluate the prospects for direct and indirect discovery of the heavy photon dark matter. The direct detection rates are quite low and a substantial improvement in experimental sensitivity would be required for observation. A substantial flux of energetic gamma rays is produced in the annihilation of the heavy photons in the galactic halo. This flux can be observed by the GLAST telescope, and, if the distribution of dark matter in the halo is favorable, by ground-based telescope arrays such as VERITAS and HESS.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/0e4102e61b8aeef0dd55115b400e2fabd0b4230b

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Citations in the corpus

Dark Matter Candidates from Particle Physics and Methods of Detection (2010, background): “These include branons in theories with large extra dimensions (49; 50), T -odd particles in little Higgs theories (32; 51), and excited states in theories with warped extra dimensions (52).”
DarkSUSY 6: an advanced tool to compute dark matter properties numerically (2018, background): “universal extra dimensions [19] or little Higgs models [20]) and have the additional advantage that the observed DM abundance can be understood from a simple thermal production mechanism in the early universe.”
Using subsystem MT2 for complete mass determinations in decay chains with missing energy at hadron colliders (2008, methodology): “Here one attempts exact event reconstruction using the measured momenta of the SM particles and the measured missing transverse momentum (1)Some well known examples are: R-parity in supersymmetry [3], KK parity in models with extra dimensions [4–7], T -parity in Little Higgs models [8,9], U -parity ”
The effects of QCD equation of state on the relic density of WIMP dark matter (2015, background): “This not only hints at a deep connection between DM and extensions of the SM addressing some of its shortcomings [10–14], it also allows various ways in which the existence of WIMP DM can be probed.”