Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Shintaro Eijima"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-43 (2023)
Abstract The gauged U 1 L μ − L τ $$ \textrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$ symmetry is the simplest possibility to explain the observed muon g − 2, while being consistent with the neutrino oscillations through the seesaw mechanism. In this
Externí odkaz:
https://doaj.org/article/3b17e06d6f564ba1b5df2fa2aecd6a0b
Autor:
Shintaro Eijima, Mikhail Shaposhnikov
Publikováno v:
Physics Letters B, Vol 771, Iss , Pp 288-296 (2017)
The existence of baryon asymmetry and dark matter in the Universe may be related to CP-violating reactions of three heavy neutral leptons (HNLs) with masses well below the Fermi scale. The dynamical description of the lepton asymmetry generation, whi
Externí odkaz:
https://doaj.org/article/85aad0dbc4f041a3ad95b5228f9cd12c
Autor:
Marco Drewes, Shintaro Eijima
Publikováno v:
Physics Letters B, Vol 763, Iss , Pp 72-79 (2016)
The extension of the Standard Model by right handed neutrinos with masses in the GeV range can simultaneously explain the observed neutrino masses via the seesaw mechanism and the baryon asymmetry of the universe via leptogenesis. It has previously b
Externí odkaz:
https://doaj.org/article/8c288f37057241c190c23be9d4bdc905
Publikováno v:
Physics Letters B, Vol 762, Iss , Pp 371-375 (2016)
We consider the neutrinoless double beta (0νββ) decay in the νMSM, 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 lep
Externí odkaz:
https://doaj.org/article/155ab6912164450db531d83c26e27fb5
Publikováno v:
Physics Letters B, Vol 742, Iss , Pp 303-309 (2015)
We consider the νMSM 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 e
Externí odkaz:
https://doaj.org/article/9cae5806f7414104aa84637ee812cf7e
Publikováno v:
Physical Review
We reexamine sterile neutrino dark matter in gauged $U(1)_{B-L}$ model. Improvements have been made by tracing and careful evaluation of the evolution of the number densities of sterile neutrinos $N$ and extra neutral gauge bosons $Z'$. As a result,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9638865af3c7371c515cec0626f08267
https://doi.org/10.1103/physrevd.106.103513
https://doi.org/10.1103/physrevd.106.103513
Publikováno v:
Journal of High Energy Physics, 2019, 77
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2019, Iss 7, Pp 1-41 (2019)
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2019, Iss 7, Pp 1-41 (2019)
The Standard Model accompanied with two right-handed neutrinos with the masses below the weak scale can explain the observed baryon asymmetry of the Universe. Moreover, this model is at least partially testable in the forthcoming experiments such as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8540452e83e015a2f416395edad05a5
http://hdl.handle.net/1887/82548
http://hdl.handle.net/1887/82548
The simplest possibility to explain the baryon asymmetry of the Universe is to assume that radiation is created asymmetrically between baryons and anti-baryons after the inflation. We propose a new mechanism of this kind where CP-violating flavor osc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59fd6668d5d0074a3b7515abaa662d28
Publikováno v:
Physical Review D. 96
We consider a baryogenesis scenario via the oscillation of right-handed neutrinos with Majorana masses of the order of GeV, which are also responsible for neutrino masses by the seesaw mechanism. We study how the initial condition alters the predicti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7984ace0eec9ed25dee3e120bb6a4de7
https://doi.org/10.1103/physrevd.96.083010
https://doi.org/10.1103/physrevd.96.083010
Publikováno v:
Physics Letters B, Vol 762, Iss, Pp 371-375 (2016)
Physics Letters B
Physics Letters B
We consider the neutrinoless double beta ($0\nu \beta \beta$) decay in the so-called $\nu$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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f38b039b61ab87468aca1f6604048dd9
http://arxiv.org/abs/1606.06686
http://arxiv.org/abs/1606.06686