Dark Light Higgs

Дата и время публикации : 2010-09-20T23:02:06Z

Авторы публикации и институты :
Patrick Draper
Tao Liu
Carlos E. M. Wagner
Lian-Tao Wang
Hao Zhang

Ссылка на журнал-издание: Phys.Rev.Lett.106:121805,2011
Коментарии к cтатье: 4 pages, 4 figures, final version for Phys. Rev. Lett
Первичная категория: hep-ph

Все категории : hep-ph, astro-ph.CO, hep-th

Краткий обзор статьи: We study a limit of the nearly-Peccei-Quinn-symmetric Next-to-Minimal Supersymmetric Standard Model possessing novel Higgs and dark matter (DM) properties. In this scenario, there naturally co-exist three light singlet-like particles: a scalar, a pseudoscalar, and a singlino-like DM candidate, all with masses of order 0.1-10 GeV. The decay of a Standard Model-like Higgs boson to pairs of the light scalars or pseudoscalars is generically suppressed, avoiding constraints from collider searches for these channels. For a certain parameter window annihilation into the light pseudoscalar and exchange of the light scalar with nucleons allow the singlino to achieve the correct relic density and a large direct detection cross section consistent with the CoGeNT and DAMA/LIBRA preferred region simultaneously. This parameter space is consistent with experimental constraints from LEP, the Tevatron, and Upsilon- and flavor physics.

Category: Physics