A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU (2020)

IceCube-Gen2 Collaboration, JUNO Collaboration. (2020). Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU. Physical Review D, 101(3), Article 032006. https://doi.org/10.1103/PhysRevD.101.032006

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: IceCube-Gen2 Collaboration; JUNO Collaboration

Lehti tai sarja: Physical Review D

ISSN: 2470-0010

eISSN: 2470-0029

Julkaisuvuosi: 2020

Volyymi: 101

Lehden numero: 3

Artikkelinumero: 032006

Kustantaja: American Physical Society

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1103/PhysRevD.101.032006

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/68286

Julkaisu on rinnakkaistallennettu: https://publikationen.bibliothek.kit.edu/1000106012

Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/1911.06745


The ordering of the neutrino mass eigenstates is one of the fundamental open questions in neutrino physics. While current-generation neutrino oscillation experiments are able to produce moderate indications on this ordering, upcoming experiments of the next generation aim to provide conclusive evidence. In this paper we study the combined performance of the two future multi-purpose neutrino oscillation experiments JUNO and the IceCube Upgrade, which employ two very distinct and complementary routes toward the neutrino mass ordering. The approach pursued by the 20 kt medium-baseline reactor neutrino experiment JUNO consists of a careful investigation of the energy spectrum of oscillated (nu) over bar (e) produced by ten nuclear reactor cores. The IceCube Upgrade, on the other hand, which consists of seven additional densely instrumented strings deployed in the center of IceCube DeepCore, will observe large numbers of atmospheric neutrinos that have undergone oscillations affected by Earth matter. In a joint fit with both approaches, tension occurs between their preferred mass-squared differences Delta m(31)(2) = m(3)(2) - m(1)(2) in within the wrong mass ordering. In the case of JUNO and the IceCube Upgrade, this allows to exclude the wrong ordering at > 5 sigma on a timescale of 3-7 years-even under circumstances that are unfavorable to the experiments individual sensitivities. For PINGU, a 26-string detector array designed as a potential low-energy extension to IceCube, the inverted ordering could be excluded within 1.5 years (3 years for the normal ordering) in a joint analysis.

YSO-asiasanat: hiukkasfysiikka; neutriinot; massa (fysiikka)

Liittyvät organisaatiot


OKM-raportointi: Kyllä

Raportointivuosi: 2020

JUFO-taso: 2

Viimeisin päivitys 2021-07-07 klo 21:37