Flavors of astrophysical neutrinos with active-sterile mixing

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Flavors of astrophysical neutrinos with active-sterile mixing. / Ahlers, Markus; Bustamante, Mauricio; Willesen, Niels Gustav Nortvig.

In: Journal of Cosmology and Astroparticle Physics, Vol. 2021, No. 7, 029, 15.07.2021.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Ahlers, M, Bustamante, M & Willesen, NGN 2021, 'Flavors of astrophysical neutrinos with active-sterile mixing', Journal of Cosmology and Astroparticle Physics, vol. 2021, no. 7, 029. https://doi.org/10.1088/1475-7516/2021/07/029

APA

Ahlers, M., Bustamante, M., & Willesen, N. G. N. (2021). Flavors of astrophysical neutrinos with active-sterile mixing. Journal of Cosmology and Astroparticle Physics, 2021(7), [029]. https://doi.org/10.1088/1475-7516/2021/07/029

Vancouver

Ahlers M, Bustamante M, Willesen NGN. Flavors of astrophysical neutrinos with active-sterile mixing. Journal of Cosmology and Astroparticle Physics. 2021 Jul 15;2021(7). 029. https://doi.org/10.1088/1475-7516/2021/07/029

Author

Ahlers, Markus ; Bustamante, Mauricio ; Willesen, Niels Gustav Nortvig. / Flavors of astrophysical neutrinos with active-sterile mixing. In: Journal of Cosmology and Astroparticle Physics. 2021 ; Vol. 2021, No. 7.

Bibtex

@article{984e461cece54e9dbbb1004e9ec0aaf1,
title = "Flavors of astrophysical neutrinos with active-sterile mixing",
abstract = "We revisit the flavor composition of high-energy astrophysical neutrinos observed at neutrino telescopes. Assuming unitary time evolution of the neutrino flavor states, the flavor composition observable at Earth is related to the initial composition at their sources via oscillation-averaged flavor transitions. In a previous study we derived general bounds on the flavor composition of TeV-PeV astrophysical neutrinos assuming three-flavor unitary mixing. We extend these bounds to the case of active-sterile neutrino mixing. Our bounds are analytical, derived based only on the unitarity of the mixing, and do not require sampling over the values of the unknown active-sterile mixing parameters. These bounds apply to any extended active-sterile neutrino mixing scenario where energy-dependent nonstandard flavor mixing dominates over the standard mixing observed in accelerator, reactor, and atmospheric neutrino oscillations.",
keywords = "neutrino astronomy, neutrino properties, ultra high energy photons and neutrinos, OSCILLATIONS",
author = "Markus Ahlers and Mauricio Bustamante and Willesen, {Niels Gustav Nortvig}",
year = "2021",
month = jul,
day = "15",
doi = "10.1088/1475-7516/2021/07/029",
language = "English",
volume = "2021",
journal = "Journal of Cosmology and Astroparticle Physics",
issn = "1475-7516",
publisher = "IOP Publishing",
number = "7",

}

RIS

TY - JOUR

T1 - Flavors of astrophysical neutrinos with active-sterile mixing

AU - Ahlers, Markus

AU - Bustamante, Mauricio

AU - Willesen, Niels Gustav Nortvig

PY - 2021/7/15

Y1 - 2021/7/15

N2 - We revisit the flavor composition of high-energy astrophysical neutrinos observed at neutrino telescopes. Assuming unitary time evolution of the neutrino flavor states, the flavor composition observable at Earth is related to the initial composition at their sources via oscillation-averaged flavor transitions. In a previous study we derived general bounds on the flavor composition of TeV-PeV astrophysical neutrinos assuming three-flavor unitary mixing. We extend these bounds to the case of active-sterile neutrino mixing. Our bounds are analytical, derived based only on the unitarity of the mixing, and do not require sampling over the values of the unknown active-sterile mixing parameters. These bounds apply to any extended active-sterile neutrino mixing scenario where energy-dependent nonstandard flavor mixing dominates over the standard mixing observed in accelerator, reactor, and atmospheric neutrino oscillations.

AB - We revisit the flavor composition of high-energy astrophysical neutrinos observed at neutrino telescopes. Assuming unitary time evolution of the neutrino flavor states, the flavor composition observable at Earth is related to the initial composition at their sources via oscillation-averaged flavor transitions. In a previous study we derived general bounds on the flavor composition of TeV-PeV astrophysical neutrinos assuming three-flavor unitary mixing. We extend these bounds to the case of active-sterile neutrino mixing. Our bounds are analytical, derived based only on the unitarity of the mixing, and do not require sampling over the values of the unknown active-sterile mixing parameters. These bounds apply to any extended active-sterile neutrino mixing scenario where energy-dependent nonstandard flavor mixing dominates over the standard mixing observed in accelerator, reactor, and atmospheric neutrino oscillations.

KW - neutrino astronomy

KW - neutrino properties

KW - ultra high energy photons and neutrinos

KW - OSCILLATIONS

U2 - 10.1088/1475-7516/2021/07/029

DO - 10.1088/1475-7516/2021/07/029

M3 - Journal article

VL - 2021

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 7

M1 - 029

ER -

ID: 276703406