Zobrazeno 1 - 8
of 8
pro vyhledávání: '"nucleosynthesis: primordial"'
Publikováno v:
Phys.Rev.D
Phys.Rev.D, 2021, 104 (2), pp.023023. ⟨10.1103/PhysRevD.104.023023⟩
Physical Review D
Physical Review D, American Physical Society, 2021, 104 (2), pp.023023. ⟨10.1103/PhysRevD.104.023023⟩
Phys.Rev.D, 2021, 104 (2), pp.023023. ⟨10.1103/PhysRevD.104.023023⟩
Physical Review D
Physical Review D, American Physical Society, 2021, 104 (2), pp.023023. ⟨10.1103/PhysRevD.104.023023⟩
It is shown that the equalization of temperatures between our and mirror sectors occurs during one Hubble time due to microscopic black hole production and evaporation in particle collisions if the temperature of the Universe is near the multidimensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e230a746b6086f7af9b7e36da99f3572
https://doi.org/10.1103/physrevd.104.023023
https://doi.org/10.1103/physrevd.104.023023
Massive sterile neutrinos in the early universe: From thermal decoupling to cosmological constraints
Publikováno v:
Physical Review D
Physical Review D, American Physical Society, 2021, 104 (1), pp.016026. ⟨10.1103/PhysRevD.104.016026⟩
Physical Review
Physical Review D, American Physical Society, 2021, 104 (1), pp.016026. ⟨10.1103/PhysRevD.104.016026⟩
Physical Review
We consider relatively heavy neutrinos $\nu_H$, mostly contributing to a sterile state $\nu_s$, with mass in the range 10 MeV $\lesssim m_s \lesssim m_{\pi} \sim 135$ MeV, which are thermally produced in the early universe in collisional processes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f925069ce53bf9dc6b2fc062b002839e
Publikováno v:
Phys.Lett.B
Phys.Lett.B, 2020, 810, pp.135817. ⟨10.1016/j.physletb.2020.135817⟩
Physics Letters B
Physics Letters B, Elsevier, 2020, 810, pp.135817. ⟨10.1016/j.physletb.2020.135817⟩
Physics Letters
Physics Letters B, Vol 810, Iss, Pp 135817-(2020)
Phys.Lett.B, 2020, 810, pp.135817. ⟨10.1016/j.physletb.2020.135817⟩
Physics Letters B
Physics Letters B, Elsevier, 2020, 810, pp.135817. ⟨10.1016/j.physletb.2020.135817⟩
Physics Letters
Physics Letters B, Vol 810, Iss, Pp 135817-(2020)
We calculate the signal rate of hypothetical heavy neutral leptons (HNL or sterile neutrinos) from kaon decays expected in the framework of the SHiP experiment. The kaons are produced in the hadronic shower initiated in the beam-dump mode by 400 GeV
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74efc0e0f418ddcb098281f7aecac113
Autor:
Cyril Pitrou, Julien Froustey
Publikováno v:
Physical Review D
Physical Review D, American Physical Society, 2020, 101 (4), pp.043524. ⟨10.1103/PhysRevD.101.043524⟩
Phys.Rev.D
Phys.Rev.D, 2020, 101 (4), pp.043524. ⟨10.1103/PhysRevD.101.043524⟩
Physical Review D, American Physical Society, 2020, 101 (4), pp.043524. ⟨10.1103/PhysRevD.101.043524⟩
Phys.Rev.D
Phys.Rev.D, 2020, 101 (4), pp.043524. ⟨10.1103/PhysRevD.101.043524⟩
In the primordial Universe, neutrino decoupling occurs only slightly before electron-positron annihilations, leading to an increased neutrino energy density with order $10^{-2}$ spectral distortions compared to the standard instantaneous decoupling a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::831d5c3b222b0b9d24dfece3f78ef14c
https://hal.archives-ouvertes.fr/hal-02440005
https://hal.archives-ouvertes.fr/hal-02440005
Publikováno v:
JCAP
JCAP, 2020, 12, pp.015. ⟨10.1088/1475-7516/2020/12/015⟩
JCAP, 2020, 12, pp.015. ⟨10.1088/1475-7516/2020/12/015⟩
We revisit the decoupling of neutrinos in the early universe with flavour oscillations. We rederive the quantum kinetic equations which determine the neutrino evolution based on a BBGKY-like hierarchy, and include for the first time the full collisio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9470db4385c080f19deeae632430500e
https://doi.org/10.1088/1475-7516/2020/12/015
https://doi.org/10.1088/1475-7516/2020/12/015
Publikováno v:
Phys.Rept.
Phys.Rept., 2018, 754, pp.1-66. ⟨10.1016/j.physrep.2018.04.005⟩
Phys.Rept., 2018, 754, pp.1-66. ⟨10.1016/j.physrep.2018.04.005⟩
Primordial nucleosynthesis is one of the three historical evidences for the big bang model, together with the expansion of the universe and the cosmic microwave background. Now that the number of neutrino families and the baryonic densities have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d4f3ba4be6e28124cb03047bfcd2465
https://hal.archives-ouvertes.fr/hal-01707557
https://hal.archives-ouvertes.fr/hal-01707557
Physical review / D 97(12), 123505 (2018). doi:10.1103/PhysRevD.97.123505
Cosmic strings are generic cosmological predictions of many extensions of the standard model of particle physics, such as a U(1)′ symmetry-breaking phase transition in t
Cosmic strings are generic cosmological predictions of many extensions of the standard model of particle physics, such as a U(1)′ symmetry-breaking phase transition in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49f43092105a0d87c333af36a56283a3
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