Direct comparison of sterile neutrino constraints from cosmological data, $\nu_{e}$ disappearance data and $\nu_{\mu}\rightarrow\nu_{e}$ appearance data in a $3+1$ model
We present a quantitative, direct comparison of constraints on sterile neutrinos derived from neutrino oscillation experiments and from Planck data, interpreted assuming standard cosmological evolution. We extend a $1+1$ model, which is used to compare exclusions contours at the 95% CL derived from...
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Format | Journal Article |
Language | English |
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18.02.2020
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Abstract | We present a quantitative, direct comparison of constraints on sterile
neutrinos derived from neutrino oscillation experiments and from Planck data,
interpreted assuming standard cosmological evolution. We extend a $1+1$ model,
which is used to compare exclusions contours at the 95% CL derived from Planck
data to those from $\nu_{e}$-disappearance measurements, to a $3+1$ model. This
allows us to compare the Planck constraints with those obtained through
$\nu_{\mu}\rightarrow\nu_{e}$ appearance searches, which are sensitive to more
than one active-sterile mixing angle. We find that the cosmological data fully
exclude the allowed regions published by the LSND, MiniBooNE and Neutrino-4
collaborations, and those from the gallium and rector anomalies, at the 95% CL.
Compared to the exclusion regions from the Daya Bay $\nu_{e}$-disappearance
search, the Planck data are more strongly excluding above $|\Delta
m^{2}_{41}|\approx 0.1\, \mathrm{eV}^{2}$ and
$m_\mathrm{eff}^\mathrm{sterile}\approx 0.2\, \mathrm{eV}$, with the Daya Bay
exclusion being stronger below these values. Compared to the combined Daya
Bay/Bugey/MINOS exclusion region on $\nu_{\mu}\rightarrow\nu_{e}$ appearance,
the Planck data is more strongly excluding above $\Delta m^{2}_{41}\approx
5\times 10^{-2}\,\mathrm{eV}^{2}$, with the exclusion strengths of the Planck
data and the Daya Bay/Bugey/MINOS combination becoming comparable below this
value. |
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AbstractList | We present a quantitative, direct comparison of constraints on sterile
neutrinos derived from neutrino oscillation experiments and from Planck data,
interpreted assuming standard cosmological evolution. We extend a $1+1$ model,
which is used to compare exclusions contours at the 95% CL derived from Planck
data to those from $\nu_{e}$-disappearance measurements, to a $3+1$ model. This
allows us to compare the Planck constraints with those obtained through
$\nu_{\mu}\rightarrow\nu_{e}$ appearance searches, which are sensitive to more
than one active-sterile mixing angle. We find that the cosmological data fully
exclude the allowed regions published by the LSND, MiniBooNE and Neutrino-4
collaborations, and those from the gallium and rector anomalies, at the 95% CL.
Compared to the exclusion regions from the Daya Bay $\nu_{e}$-disappearance
search, the Planck data are more strongly excluding above $|\Delta
m^{2}_{41}|\approx 0.1\, \mathrm{eV}^{2}$ and
$m_\mathrm{eff}^\mathrm{sterile}\approx 0.2\, \mathrm{eV}$, with the Daya Bay
exclusion being stronger below these values. Compared to the combined Daya
Bay/Bugey/MINOS exclusion region on $\nu_{\mu}\rightarrow\nu_{e}$ appearance,
the Planck data is more strongly excluding above $\Delta m^{2}_{41}\approx
5\times 10^{-2}\,\mathrm{eV}^{2}$, with the exclusion strengths of the Planck
data and the Daya Bay/Bugey/MINOS combination becoming comparable below this
value. |
Author | Evans, Justin J Söldner-Rembold, Stefan Fearraigh, Brían Ó Bezrukov, Fedor Guzowski, Pawel Elvin-Poole, Jack Adams, Matthew |
Author_xml | – sequence: 1 givenname: Matthew surname: Adams fullname: Adams, Matthew – sequence: 2 givenname: Fedor surname: Bezrukov fullname: Bezrukov, Fedor – sequence: 3 givenname: Jack surname: Elvin-Poole fullname: Elvin-Poole, Jack – sequence: 4 givenname: Justin J surname: Evans fullname: Evans, Justin J – sequence: 5 givenname: Pawel surname: Guzowski fullname: Guzowski, Pawel – sequence: 6 givenname: Brían Ó surname: Fearraigh fullname: Fearraigh, Brían Ó – sequence: 7 givenname: Stefan surname: Söldner-Rembold fullname: Söldner-Rembold, Stefan |
BackLink | https://doi.org/10.1140/epjc/s10052-020-8197-y$$DView published paper (Access to full text may be restricted) https://doi.org/10.48550/arXiv.2002.07762$$DView paper in arXiv |
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SubjectTerms | Physics - Cosmology and Nongalactic Astrophysics Physics - High Energy Physics - Experiment Physics - High Energy Physics - Phenomenology |
Title | Direct comparison of sterile neutrino constraints from cosmological data, $\nu_{e}$ disappearance data and $\nu_{\mu}\rightarrow\nu_{e}$ appearance data in a $3+1$ model |
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