Scholars@Duke publication: Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV

Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV

Publication , Journal Article

Abe, K; Bronner, C; Hayato, Y; Ikeda, M; Imaizumi, S; Ito, H; Kameda, J; Kataoka, Y; Miura, M; Moriyama, S; Nagao, Y; Nakahata, M; Okada, T ...

Published in: Astroparticle Physics

June 1, 2022

Published version (DOI)

Due to a very low production rate of electron anti-neutrinos (ν̄e) via nuclear fusion in the Sun, a flux of solar ν̄e is unexpected. An appearance of ν̄e in solar neutrino flux opens a new window for the new physics beyond the standard model. In particular, a spin-flavor precession process is expected to convert an electron neutrino into an electron anti-neutrino (νe→ν̄e) when neutrino has a finite magnetic moment. In this work, we have searched for solar ν̄e in the Super-Kamiokande experiment, using neutron tagging to identify their inverse beta decay signature. We identified 78 ν̄e candidates for neutrino energies of 9.3 to 17.3 MeV in 2970.1 live days with a fiducial volume of 22.5 kiloton water (183.0 kton⋅year exposure). The energy spectrum has been consistent with background predictions and we thus derived a 90% confidence level upper limit of 4.7×10⁻⁴ on the νe→ν̄e conversion probability in the Sun. We used this result to evaluate the sensitivity of future experiments, notably the Super-Kamiokande Gadolinium (SK-Gd) upgrade.

Duke Scholars

Author Kate Scholberg Physics

Author Christopher Walter Physics

Published In

Astroparticle Physics

DOI

10.1016/j.astropartphys.2022.102702

ISSN

0927-6505

Publication Date

June 1, 2022

Volume

139

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5101 Astronomical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences

Citation

APA

Chicago

ICMJE

MLA

NLM

Abe, K., Bronner, C., Hayato, Y., Ikeda, M., Imaizumi, S., Ito, H., … Sakashita, K. (2022). Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV. Astroparticle Physics, 139. https://doi.org/10.1016/j.astropartphys.2022.102702

Abe, K., C. Bronner, Y. Hayato, M. Ikeda, S. Imaizumi, H. Ito, J. Kameda, et al. “Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV.” Astroparticle Physics 139 (June 1, 2022). https://doi.org/10.1016/j.astropartphys.2022.102702.

Abe K, Bronner C, Hayato Y, Ikeda M, Imaizumi S, Ito H, et al. Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV. Astroparticle Physics. 2022 Jun 1;139.

Abe, K., et al. “Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV.” Astroparticle Physics, vol. 139, June 2022. Scopus, doi:10.1016/j.astropartphys.2022.102702.

Abe K, Bronner C, Hayato Y, Ikeda M, Imaizumi S, Ito H, Kameda J, Kataoka Y, Miura M, Moriyama S, Nagao Y, Nakahata M, Nakajima Y, Nakayama S, Okada T, Okamoto K, Orii A, Pronost G, Sekiya H, Shiozawa M, Sonoda Y, Suzuki Y, Takeda A, Takemoto Y, Takenaka A, Tanaka H, Yano T, Akutsu R, Han S, Kajita T, Okumura K, Tashiro T, Wang R, Xia J, Bravo-Berguño D, Labarga L, Marti L, Zaldivar B, Blaszczyk FDM, Kearns E, Raaf JL, Stone JL, Wan L, Wester T, Pointon BW, Bian J, Griskevich NJ, Kropp WR, Locke S, Mine S, Smy MB, Sobel HW, Takhistov V, Weatherly P, Hill J, Kim JY, Lim IT, Park RG, Bodur B, Scholberg K, Walter CW, Bernard L, Coffani A, Drapier O, Hedri SE, Giampaolo A, Gonin M, Mueller TA, Paganini P, Quilain B, Ishizuka T, Nakamura T, Jang JS, Learned JG, Anthony LHV, Sztuc AA, Uchida Y, Berardi V, Catanesi MG, Radicioni E, Calabria NF, Machado LN, De Rosa G, Collazuol G, Iacob F, Lamoureux M, Ospina N, Ludovici L, Nishimura Y, Cao S, Friend M, Hasegawa T, Ishida T, Jakkapu M, Kobayashi T, Matsubara T, Nakadaira T, Nakamura K, Oyama Y, Sakashita K. Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV. Astroparticle Physics. 2022 Jun 1;139.

Published In

Astroparticle Physics

DOI

10.1016/j.astropartphys.2022.102702

ISSN

0927-6505

Publication Date

June 1, 2022

Volume

139

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5101 Astronomical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences