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Related papers: A possible symmetry of the $\nu$MSM

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An extension of the Standard Model by three right-handed neutrinos with masses smaller than the electroweak scale (the $\nu$MSM) can explain simultaneously dark matter and baryon asymmetry of the Universe, being consistent with the data on…

Astrophysics · Physics 2016-11-15 Mikhail Shaposhnikov

We show that the extension of the standard model by three right-handed neutrinos with masses smaller than the electroweak scale (the $\nu$MSM) can explain simultaneously dark matter and baryon asymmetry of the universe and be consistent…

High Energy Physics - Phenomenology · Physics 2010-04-06 Takehiko Asaka , Mikhail Shaposhnikov

We explore the range of parameters for dark-matter sterile neutrinos in an extention of the Minimal Standard Model by three singlet fermions with masses below the electroweak scale (the $\nu$MSM). This simple model can explain a wide range…

High Energy Physics - Phenomenology · Physics 2008-11-26 Takehiko Asaka , Mikhail Shaposhnikov , Alexander Kusenko

Standard model of particle physics fails to explain neutrino oscillations, dark matter and baryon asymmetry of the Universe. All these problems can be solved with three sterile neutrinos added to the model. Quite remarkably, if sterile…

High Energy Physics - Phenomenology · Physics 2013-01-24 S. N. Gninenko , D. S. Gorbunov , M. E. Shaposhnikov

We study the model with three right-handed neutrinos which masses are smaller than the weak scale ${\cal O}(10^2)$ GeV (called as the $\nu$MSM). The model can explain the origin of neutrino masses by the seesaw mechanism, offer a candidate…

High Energy Physics - Phenomenology · Physics 2015-06-02 Takehiko Asaka , Shintaro Eijima , Kazuhiro Takeda

We perform a detailed analysis of baryon asymmetry generation in the NuMSM (an extension of the Standard Model by three singlet Majorana fermions with masses below the Fermi scale). Fixing a number of parameters of the NuMSM by the neutrino…

High Energy Physics - Phenomenology · Physics 2010-12-28 Laurent Canetti , Mikhail Shaposhnikov

We consider neutrino Minimal extension of the Standard Model ($\nu$MSM), which by introducing only three sterile neutrinos in sub electroweak region can explain active neutrino oscillations (via seesaw type I mechanism), baryon asymmetry of…

High Energy Physics - Phenomenology · Physics 2015-08-12 Dmitry Gorbunov , Inar Timiryasov

We propose a minimal model based on lepton number symmetry (and violation), to address a common origin of baryon asymmetry, dark matter and neutrino mass generation. The model consists of a vector like fermion to constitute the dark sector,…

High Energy Physics - Phenomenology · Physics 2022-10-12 Subhaditya Bhattacharya , Rishav Roshan , Arunansu Sil , Drona Vatsyayan

We propose an extended version of the standard model, in which neutrino oscillation, dark matter, and baryon asymmetry of the Universe can be simultaneously explained by the TeV-scale physics without assuming unnatural hierarchy among the…

High Energy Physics - Phenomenology · Physics 2009-02-27 Mayumi Aoki , Shinya Kanemura , Osamu Seto

We present a comprehensive overview of an extension of the Standard Model that contains three right-handed (sterile) neutrinos with masses below the electroweak scale [the Neutrino Minimal Standard Model, (nuMSM)]. We consider the history…

High Energy Physics - Phenomenology · Physics 2009-12-15 Alexey Boyarsky , Oleg Ruchayskiy , Mikhail Shaposhnikov

We study in detail the mechanism of baryon and lepton asymmetry generation in the framework of the $\nu$MSM (an extension of the Standard Model by three singlet fermions with masses smaller than the electroweak scale). We elucidate the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Mikhail Shaposhnikov

The generation of lepton asymmetry below the electroweak scale has a considerable impact on production of dark matter sterile neutrinos. Oscillations or decays of the heavier sterile neutrinos in the neutrino minimal standard model can give…

High Energy Physics - Phenomenology · Physics 2010-11-09 Ananda Roy , Mikhail Shaposhnikov

It has been pointed out in ref.[1] that in the nuMSM (Standard Model extended by three right-handed neutrinos with masses smaller than the electroweak scale), there is a corner in the parameter space where CP-violating resonant oscillations…

High Energy Physics - Phenomenology · Physics 2009-01-06 M. Laine , M. Shaposhnikov

We investigate an extension of the Minimal Standard Model by right-handed neutrinos (the $\nu$MSM) to incorporate neutrino masses consistent with oscillation experiments. Within this theory, the only candidates for dark matter particles are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Takehiko Asaka , Steve Blanchet , Mikhail Shaposhnikov

We consider an SU(3)'_c\times SU(2)'_L\times U(1)'_Y mirror sector where the field content and dimensionless couplings are a copy of the SU(3)_c\times SU(2)_L\times U(1)_Y ordinary sector. Our model also contains three gauge-singlet…

High Energy Physics - Phenomenology · Physics 2015-06-15 Pei-Hong Gu

The quasi-degeneracy of heavier sterile neutrino masses in the Neutrino Minimal Standard Model ($\nu$MSM) facilitates the production of lepton asymmetry below the electroweak scale. The first order loop corrections to this mass-difference…

High Energy Physics - Phenomenology · Physics 2010-06-22 Ananda Roy

We consider the $\nu$MSM which is an extension of the Standard Model by three right-handed neutrinos with masses below the electroweak scale, in which the origins of neutrino masses, dark matter, and baryon asymmetry of the universe are…

High Energy Physics - Phenomenology · Physics 2015-06-23 Takehiko Asaka , Shintaro Eijima , Kazuhiro Takeda

We review the viability of the sterile neutrino hypothesis in accounting for three observational problems of the Standard Model of particle physics: neutrino masses and lepton mixing, dark matter and the baryon asymmetry of the Universe. We…

High Energy Physics - Phenomenology · Physics 2018-03-30 Michele Lucente , Asmaa Abada , Giorgio Arcadi , Valerie Domcke

We discuss a model which would explain neutrino oscillation, dark matter, and baryon asymmetry of the Universe simultaneously by the physics at TeV scales. Tiny neutrino masses are generated at the three loop level due to the exact $Z_2$…

High Energy Physics - Phenomenology · Physics 2009-01-08 Mayumi Aoki , Shinya Kanemura , Osamu Seto

In this work, we explain three beyond standard model (BSM) phenomena, namely neutrino masses, the baryon asymmetry of the Universe and Dark Matter, within a single model and in each explanation the right handed (RH) neutrinos play the prime…

High Energy Physics - Phenomenology · Physics 2019-06-26 Anirban Biswas , Sandhya Choubey , Laura Covi , Sarif Khan
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