Dark Atoms: Asymmetry and Direct Detection

التفاصيل البيبلوغرافية
العنوان: Dark Atoms: Asymmetry and Direct Detection
المؤلفون: Kaplan, David E., Krnjaic, Gordan Z., Rehermann, Keith R., Wells, Christopher M.
سنة النشر: 2011
المجموعة: Astrophysics
High Energy Physics - Phenomenology
مصطلحات موضوعية: High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies
الوصف: We present a simple UV completion of Atomic Dark Matter (aDM) in which heavy right-handed neutrinos decay to induce both dark and lepton number densities. This model addresses several outstanding cosmological problems: the matter/anti-matter asymmetry, the dark matter abundance, the number of light degrees of freedom in the early universe, and the smoothing of small-scale structure. Additionally, this realization of aDM may reconcile the CoGeNT excess with recently published null results and predicts a signal in the CRESST Oxygen band. We also find that, due to unscreened long-range interactions, the residual un recombined dark ions settle into a diffuse isothermal halo.
Comment: 17 pages, 3 figures, expanded discussion of light degrees of freedom, minor typos corrected, to appear in JCAP
نوع الوثيقة: Working Paper
DOI: 10.1088/1475-7516/2011/10/011
URL الوصول: http://arxiv.org/abs/1105.2073
رقم الأكسشن: edsarx.1105.2073
قاعدة البيانات: arXiv
الوصف
DOI:10.1088/1475-7516/2011/10/011