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Sterile neutrinos as dark matter

Publications associées (37)

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The measurement of the absolute neutrino mass scale from cosmological largescale clustering data is one of the key science goals of the Euclid mission. Such a measurement relies on precise modelling of the impact of neutrinos on structure formation, which ...

Bristol2023

Freeze-in and freeze-out generation of lepton asymmetries after baryogenesis in the nu MSM

Shintaro Eijima

The nu MSM an extension of the Standard Model by three relatively light singlet Majorana fermions N-1,N-2,N-3 allows for the generation of lepton asymmetry which is several orders of magnitude larger than the observed baryon asymmetry of the Universe. The ...

IOP Publishing Ltd2022

Einstein-Cartan Portal to Dark Matter

Andrey Shkerin, Inar Timiryasov, Sebastian Zell

It is well known since the works of Utiyama and Kibble that the gravitational force can be obtained by gauging the Poincare group, which puts gravity on the same footing as the standard model fields. The resulting theory-Einstein-Cartan gravity-inevitably ...

AMER PHYSICAL SOC2021

Physics beyond the Standard Model can appear as new particles too heavy to be produced in experiments (the energy frontier) or interacting too weakly to be seen in our measurements (the intensity frontier). In the first part of this thesis, we study two ...

EPFL2019

A White Paper on keV sterile neutrino Dark Matter

Antoine Pierre Emmanuel Alexis Merle, Alexey Boyarsky, Laurent Gastaldo, Jonathan Leon Wolf, Julien Lesgourgues, Oleg Ruchayskiy, Marco Drewes, Igor Tkachev, Jan Hamann

We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved - cosmology, astrophysics, nuclear, and particle physics - in each case viewed from both theoretical and experimental/o ...

Iop Publishing Ltd2017

We consider the neutrinoless double beta (0 nu beta beta) decay in the nu MSM, in which three right-handed neutrinos with masses below the electroweak scale are additionally introduced to the Standard Model. In this model there appear three heavy neutral l ...

Elsevier2016

A facility to search for hidden particles at the CERN SPS: the SHiP physics case

Lesya Shchutska, Alexey Boyarsky, Oleg Ruchayskiy, Marco Drewes, Kyrylo Bondarenko, Shintaro Eijima, Anurag Tripathi

This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP (search for hidden particles) experiment is intended to hunt for new physics in the largely unexplored domain of very weakly interacting particles with masses below ...

Institute of Physics2016

Cosmology with self-interacting sterile neutrinos and dark matter: A pseudoscalar model

Short baseline neutrino oscillation experiments have shown hints of the existence of additional sterile neutrinos in the eV mass range. Such sterile neutrinos are incompatible with cosmology because they suppress structure formation unless they can be prev ...

Amer Physical Soc2015

Lepton universality in the nu MSM

Shintaro Eijima

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 simultaneously explai ...

Elsevier Science Bv2015

Neutrino and Dark Matter Properties from Cosmological Observations

Benjamin Audren

We apply the principles of Bayesian statistics to the main probes of cosmology, in order to refine our knowledge of the Standard Model and possibly extend it. Notably, we investigate the basic elements of the model in detail in order to reinforce this basi ...

EPFL2014