The nuMSM, dark matter and neutrino masses

By T. Asaka, Steve Blanchet, M. Shaposhnikov. 2005

683 citations recorded by the source corpus.

We investigate an extension of the Minimal Standard Model by right-handed neutrinos (the νMSM) to incorporate neutrino masses consistent with oscillation experiments. Within this theory, the only candidates for dark matter particles are sterile right-handed neutrinos with masses of a few keV. Requiring that these neutrinos explain entirely the (warm) dark matter, we find that their number is at least three. We show that, in the minimal choice of three sterile neutrinos, the mass of the lightest active neutrino is smaller than O(10-5) eV, which excludes the degenerate mass spectra of three active neutrinos and fixes the absolute mass scale of the other two active neutrinos. © 2005 Elsevier B.V. All rights reserved.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/00b72258fc402da522ab5344cca62753ad181b48

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In Nuclear and High Energy Physics

Citations in the corpus

Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke (2016, methodology): “in [3, 4] or [64] supplemented by Higgs Inflation [10].”
Leptogenesis (2008, neutral): “The importance (7)An exception is the νMSM [50].”
Lyman-alpha constraints on warm and on warm-plus-cold dark matter models (2008, methodology): “Having masses of all new particles below the electroweak scale, this model is able to explain simultaneously three BSM phenomena: (i) the transition between the neutrino of different flavours (neutrino oscillations); (ii) the production of a non-zero baryon number in the early Universe; and (iii)…”
Transport properties of the quark-gluon plasma (2011, background): “ viscosities in the high-temperature phase [29]. In this waythe transportpropertieswould have an impact on cosmological observables. A sterile, right-handed neutrino of mass m≈10keV has been proposed [30] as a candidate for warm dark matter in the context of the νMSM. In a given scenario the product”
Sterile neutrino Dark Matter (2018, background): “inimise the number of new entities introduced but maximise the number of problems which can be addressed simultaneously. A specic low scale seesaw model that realises this idea was suggested in 2005 [36,37], see [140] for a review. This Neutrino Minimal Standard Model (MSM) provides a new systematic”
On the description of nonunitary neutrino mixing (2015, background): “[24] Takehiko Asaka, Steve Blanchet, and Mikhail Shaposhnikov.”