Ultra-high Energy Event KM3-230213A as a Cosmogenic Neutrino in Light of Minimal UHECR Flux Models

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Ultra-high Energy Event KM3-230213A as a Cosmogenic Neutrino in Light of Minimal UHECR Flux Models. / Kuznetsov, M. Yu; Petrov, N. A.; Savchenko, Y. S.

в: JETP Letters, Том 123, № 5, 03.2026, стр. 287–297.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{337548535c1441508e45c258dc218bb8,

title = "Ultra-high Energy Event KM3-230213A as a Cosmogenic Neutrino in Light of Minimal UHECR Flux Models",

abstract = "Recently, the KM3NeT experiment reported the detection of a neutrino with exceptionally high energy E = 220 PeV, whose origin remains unclear. The corresponding value of the neutrino flux is in tension with the results of other high-energy neutrino experiments. In this study, we discuss the possibility that this neutrino is cosmogenic, i.e., produced by ultra-high energy cosmic rays during their propagation through the intergalactic medium. We adopt the ultra-high energy cosmic rays flux models derived by the Telescope Array experiment, which features a predominantly light mass composition. We show that the predictions of the cosmogenic neutrino flux in these models are consistent with the measurements of the KM3NeT-only and with that of the “global neutrino observatory” at approximately 2σ level. Notably, this result is achieved in a minimal version of the ultra-high energy cosmic rays flux models, that assume one source population with a standard cosmological evolution. We also estimate the corresponding cosmogenic gamma-ray flux and show that it is consistent with Fermi-LAT Isotropic Diffuse Gamma-Ray Background measurements and ultra-high energy gamma-ray limits; the improvement of the latter can probe these predictions in future.",

author = "Kuznetsov, {M. Yu} and Petrov, {N. A.} and Savchenko, {Y. S.}",

note = "Kuznetsov, M.Y., Petrov, N.A. & Savchenko, Y.S. Ultra-High Energy Event KM3-230213A as a Cosmogenic Neutrino in Light of Minimal UHECR Flux Models. Jetp Lett. 123, 287–297 (2026). https://doi.org/10.1134/S0021364025610061 This work was supported by the Russian Science Foundation, project no. 25-12-00111.",

year = "2026",

month = mar,

doi = "10.1134/S0021364025610061",

language = "English",

volume = "123",

pages = "287–297",

journal = "JETP Letters",

issn = "0021-3640",

publisher = "Общество с ограниченной ответственностью Международная академическая издательская компания {"}Наука/Интерпериодика{"}",

number = "5",

}

RIS

TY - JOUR

T1 - Ultra-high Energy Event KM3-230213A as a Cosmogenic Neutrino in Light of Minimal UHECR Flux Models

AU - Kuznetsov, M. Yu

AU - Petrov, N. A.

AU - Savchenko, Y. S.

N1 - Kuznetsov, M.Y., Petrov, N.A. & Savchenko, Y.S. Ultra-High Energy Event KM3-230213A as a Cosmogenic Neutrino in Light of Minimal UHECR Flux Models. Jetp Lett. 123, 287–297 (2026). https://doi.org/10.1134/S0021364025610061 This work was supported by the Russian Science Foundation, project no. 25-12-00111.

PY - 2026/3

Y1 - 2026/3

N2 - Recently, the KM3NeT experiment reported the detection of a neutrino with exceptionally high energy E = 220 PeV, whose origin remains unclear. The corresponding value of the neutrino flux is in tension with the results of other high-energy neutrino experiments. In this study, we discuss the possibility that this neutrino is cosmogenic, i.e., produced by ultra-high energy cosmic rays during their propagation through the intergalactic medium. We adopt the ultra-high energy cosmic rays flux models derived by the Telescope Array experiment, which features a predominantly light mass composition. We show that the predictions of the cosmogenic neutrino flux in these models are consistent with the measurements of the KM3NeT-only and with that of the “global neutrino observatory” at approximately 2σ level. Notably, this result is achieved in a minimal version of the ultra-high energy cosmic rays flux models, that assume one source population with a standard cosmological evolution. We also estimate the corresponding cosmogenic gamma-ray flux and show that it is consistent with Fermi-LAT Isotropic Diffuse Gamma-Ray Background measurements and ultra-high energy gamma-ray limits; the improvement of the latter can probe these predictions in future.

AB - Recently, the KM3NeT experiment reported the detection of a neutrino with exceptionally high energy E = 220 PeV, whose origin remains unclear. The corresponding value of the neutrino flux is in tension with the results of other high-energy neutrino experiments. In this study, we discuss the possibility that this neutrino is cosmogenic, i.e., produced by ultra-high energy cosmic rays during their propagation through the intergalactic medium. We adopt the ultra-high energy cosmic rays flux models derived by the Telescope Array experiment, which features a predominantly light mass composition. We show that the predictions of the cosmogenic neutrino flux in these models are consistent with the measurements of the KM3NeT-only and with that of the “global neutrino observatory” at approximately 2σ level. Notably, this result is achieved in a minimal version of the ultra-high energy cosmic rays flux models, that assume one source population with a standard cosmological evolution. We also estimate the corresponding cosmogenic gamma-ray flux and show that it is consistent with Fermi-LAT Isotropic Diffuse Gamma-Ray Background measurements and ultra-high energy gamma-ray limits; the improvement of the latter can probe these predictions in future.

UR - https://www.scopus.com/pages/publications/105031565213

UR - https://www.mendeley.com/catalogue/05306f6a-f333-378d-99cc-9c219c8acce7/

U2 - 10.1134/S0021364025610061

DO - 10.1134/S0021364025610061

M3 - Article

VL - 123

SP - 287

EP - 297

JO - JETP Letters

JF - JETP Letters

SN - 0021-3640

IS - 5

ER -

ID: 75989410