arXiv Open Access 2025

Measurement of solar neutrino interaction rate below 3.49 MeV in Super-Kamiokande-IV

Super-Kamiokande Collaboration : A. Yankelevich K. Abe Y. Asaoka +251 lainnya

Lihat Sumber

Abstrak

Super-Kamiokande has observed $^{8}\text{B}$ solar neutrino elastic scattering at recoil electron kinetic energies ($E_{kin}$) as low as 3.49 MeV to study neutrino flavor conversion within the sun. At SK-observable energies, these conversions are dominated by the Mikheyev-Smirnov-Wolfenstein effect. An upturn in the electron neutrino survival probability in which vacuum neutrino oscillations become dominant is predicted to occur at lower energies, but radioactive background increases exponentially with decreasing energy. New machine learning approaches provide substantial background reduction below 3.49 MeV such that statistical extraction of solar neutrino interactions becomes feasible. This article presents an analysis of the solar neutrino interaction rate at $E_{kin}$ < 3.49 MeV with the full SK-IV period, using data from a wideband intelligent trigger when available and with a boosted decision tree for event selection. A solar neutrino signal is observed between 2.99 MeV < $E_{kin}$ < 3.49 MeV with $2.76σ$ significance and a data to unoscillated MC ratio of $0.307^{+0.112}_{-0.111}$. This additional low energy data has a negligible effect on the $1σ$ intervals of the fits to the solar neutrino energy spectrum but has a noticeable effect on the best fit when using the exponential parameterization.

Topik & Kata Kunci

hep-ex

Penulis (256)

Super-Kamiokande Collaboration

A. Yankelevich

K. Abe

Y. Asaoka

M. Harada

Y. Hayato

K. Hiraide

T. H. Hung

K. Hosokawa

K. Ieki

M. Ikeda

J. Kameda

Y. Kanemura

Y. Kataoka

S. Miki

S. Mine

M. Miura

S. Moriyama

K. Nakagiri

M. Nakahata

S. Nakayama

Y. Noguchi

G. Pronost

K. Sato

H. Sekiya

R. Shinoda

M. Shiozawa

Y. Suzuki

A. Takeda

Y. Takemoto

H. Tanaka

T. Yano

S. Chen

Y. Itow

T. Kajita

R. Nishijima

K. Okumura

T. Tashiro

T. Tomiya

X. Wang

F. J. de Garay Arcones

P. Fernandez

L. Labarga

D. Samudio

B. Zaldivar

C. Yanagisawa

B. Jargowsky

E. Kearns

J. Mirabito

L. Wan

T. Wester

B. W. Pointon

J. Bian

B. Cortez

N. J. Griskevich

Y. Jiang

M. B. Smy

H. W. Sobel

V. Takhistov

J. Hill

M. C. Jang

S. H. Lee

D. H. Moon

R. G. Park

B. S. Yang

B. Bodur

K. Scholberg

C. W. Walter

A. Beauchene

O. Drapier

A. Ershova

M. Ferey

E. Le Blevec

Th. A. Mueller

P. Paganini

C. Quach

R. Rogly

T. Nakamura

J. S. Jang

R. P. Litchfield

L. N. Machado

F. J. P. Soler

J. G. Learned

K. Choi

S. Cao

L. H. V. Anthony

N. W. Prouse

M. Scott

Y. Uchida

V. Berardi

N. F. Calabria

M. G. Catanesi

N. Ospina

E. Radicioni

A. Langella

G. De Rosa

G. Collazuol

M. Feltre

M. Mattiazzi

L. Ludovici

M. Gonin

L. Perisse

B. Quilain

S. Horiuchi

A. Kawabata

M. Kobayashi

Y. M. Liu

Y. Maekawa

Y. Nishimura

R. Akutsu

M. Friend

T. Hasegawa

Y. Hino

T. Ishida

T. Kobayashi

M. Jakkapu

T. Matsubara

T. Nakadaira

Y. Oyama

A. Portocarrero Yrey

K. Sakashita

T. Sekiguchi

T. Tsukamoto

N. Bhuiyan

G. T. Burton

F. Di Lodovico

J. Gao

T. Katori

R. Kralik

N. Latham

R. M. Ramsden

V. Siccardi

H. Ito

T. Sone

A. T. Suzuki

Y. Takeuchi

S. Wada

H. Zhong

J. Feng

L. Feng

S. Han

J. Hikida

J. R. Hu

Z. Hu

M. Kawaue

T. Kikawa

T. V. Ngoc

T. Nakaya

R. A. Wendell

S. J. Jenkins

N. McCauley

A. Tarrant

M. Fan

M. J. Wilking

Z. Xie

Y. Fukuda

H. Menjo

Y. Yoshioka

J. Lagoda

M. Mandal

Y. S. Prabhu

J. Zalipska

M. Mori

J. Jiang

K. Hamaguchi

H. Ishino

Y. Koshio

F. Nakanishi

T. Tada

T. Ishizuka

G. Barr

D. Barrow

L. Cook

S. Samani

D. Wark

A. Holin

F. Nova

S. Jung

J. Yoo

J. E. P. Fannon

L. Kneale

M. Malek

J. M. McElwee

T. Peacock

P. Stowell

M. D. Thiesse

L. F. Thompson

H. Okazawa

S. M. Lakshmi

E. Kwon

M. W. Lee

J. W. Seo

I. Yu

Y. Ashida

A. K. Ichikawa

K. D. Nakamura

S. Abe

S. Goto

S. Kodama

Y. Kong

H. Hayasaki

Y. Masaki

Y. Mizuno

T. Muro

K. Nakagiri

Y. Nakajima

N. Taniuchi

M. Yokoyama

P. de Perio

S. Fujita

C. Jesus-Valls

K. Martens

Ll. Marti

A. D. Santos

K. M. Tsui

M. R. Vagins

J. Xia

S. Izumiyama

M. Kuze

R. Matsumoto

R. Asaka

M. Ishitsuka

M. Sugo

M. Wako

K. Yamauchi

Y. Nakano

F. Cormier

R. Gaur

M. Hartz

A. Konaka

X. Li

B. R. Smithers

S. Chen

Y. Wu

B. D. Xu

A. Q. Zhang

B. Zhang

H. Adhikary

M. Girgus

P. Govindaraj

M. Posiadala-Zezula

S. B. Boyd

R. Edwards

D. Hadley

M. Nicholson

M. O'Flaherty

B. Richards

A. Ali

B. Jamieson

C. Bronner

D. Horiguchi

A. Minamino

Y. Sasaki

R. Shibayama

R. Shimamura

Format Sitasi

APA MLA BibTeX

Collaboration, S., :, Yankelevich, A., Abe, K., Asaoka, Y., Harada, M. et al. (2025). Measurement of solar neutrino interaction rate below 3.49 MeV in Super-Kamiokande-IV. https://arxiv.org/abs/2512.19887

@article{collaboration2025, author = {Super-Kamiokande Collaboration and : and A. Yankelevich and K. Abe and Y. Asaoka and M. Harada and Y. Hayato and K. Hiraide and T. H. Hung and K. Hosokawa and K. Ieki and M. Ikeda and J. Kameda and Y. Kanemura and Y. Kataoka and S. Miki and S. Mine and M. Miura and S. Moriyama and K. Nakagiri and M. Nakahata and S. Nakayama and Y. Noguchi and G. Pronost and K. Sato and H. Sekiya and R. Shinoda and M. Shiozawa and Y. Suzuki and A. Takeda and Y. Takemoto and H. Tanaka and T. Yano and S. Chen and Y. Itow and T. Kajita and R. Nishijima and K. Okumura and T. Tashiro and T. Tomiya and X. Wang and F. J. de Garay Arcones and P. Fernandez and L. Labarga and D. Samudio and B. Zaldivar and C. Yanagisawa and B. Jargowsky and E. Kearns and J. Mirabito and L. Wan and T. Wester and B. W. Pointon and J. Bian and B. Cortez and N. J. Griskevich and Y. Jiang and M. B. Smy and H. W. Sobel and V. Takhistov and J. Hill and M. C. Jang and S. H. Lee and D. H. Moon and R. G. Park and B. S. Yang and B. Bodur and K. Scholberg and C. W. Walter and A. Beauchene and O. Drapier and A. Ershova and M. Ferey and E. Le Blevec and Th. A. Mueller and P. Paganini and C. Quach and R. Rogly and T. Nakamura and J. S. Jang and R. P. Litchfield and L. N. Machado and F. J. P. Soler and J. G. Learned and K. Choi and S. Cao and L. H. V. Anthony and N. W. Prouse and M. Scott and Y. Uchida and V. Berardi and N. F. Calabria and M. G. Catanesi and N. Ospina and E. Radicioni and A. Langella and G. De Rosa and G. Collazuol and M. Feltre and M. Mattiazzi and L. Ludovici and M. Gonin and L. Perisse and B. Quilain and S. Horiuchi and A. Kawabata and M. Kobayashi and Y. M. Liu and Y. Maekawa and Y. Nishimura and R. Akutsu and M. Friend and T. Hasegawa and Y. Hino and T. Ishida and T. Kobayashi and M. Jakkapu and T. Matsubara and T. Nakadaira and Y. Oyama and A. Portocarrero Yrey and K. Sakashita and T. Sekiguchi and T. Tsukamoto and N. Bhuiyan and G. T. Burton and F. Di Lodovico and J. Gao and T. Katori and R. Kralik and N. Latham and R. M. Ramsden and V. Siccardi and H. Ito and T. Sone and A. T. Suzuki and Y. Takeuchi and S. Wada and H. Zhong and J. Feng and L. Feng and S. Han and J. Hikida and J. R. Hu and Z. Hu and M. Kawaue and T. Kikawa and T. V. Ngoc and T. Nakaya and R. A. Wendell and S. J. Jenkins and N. McCauley and A. Tarrant and M. Fan and M. J. Wilking and Z. Xie and Y. Fukuda and H. Menjo and Y. Yoshioka and J. Lagoda and M. Mandal and Y. S. Prabhu and J. Zalipska and M. Mori and J. Jiang and K. Hamaguchi and H. Ishino and Y. Koshio and F. Nakanishi and T. Tada and T. Ishizuka and G. Barr and D. Barrow and L. Cook and S. Samani and D. Wark and A. Holin and F. Nova and S. Jung and J. Yoo and J. E. P. Fannon and L. Kneale and M. Malek and J. M. McElwee and T. Peacock and P. Stowell and M. D. Thiesse and L. F. Thompson and H. Okazawa and S. M. Lakshmi and E. Kwon and M. W. Lee and J. W. Seo and I. Yu and Y. Ashida and A. K. Ichikawa and K. D. Nakamura and S. Abe and S. Goto and S. Kodama and Y. Kong and H. Hayasaki and Y. Masaki and Y. Mizuno and T. Muro and K. Nakagiri and Y. Nakajima and N. Taniuchi and M. Yokoyama and P. de Perio and S. Fujita and C. Jesus-Valls and K. Martens and Ll. Marti and A. D. Santos and K. M. Tsui and M. R. Vagins and J. Xia and S. Izumiyama and M. Kuze and R. Matsumoto and R. Asaka and M. Ishitsuka and M. Sugo and M. Wako and K. Yamauchi and Y. Nakano and F. Cormier and R. Gaur and M. Hartz and A. Konaka and X. Li and B. R. Smithers and S. Chen and Y. Wu and B. D. Xu and A. Q. Zhang and B. Zhang and H. Adhikary and M. Girgus and P. Govindaraj and M. Posiadala-Zezula and S. B. Boyd and R. Edwards and D. Hadley and M. Nicholson and M. O'Flaherty and B. Richards and A. Ali and B. Jamieson and C. Bronner and D. Horiguchi and A. Minamino and Y. Sasaki and R. Shibayama and R. Shimamura}, title = {Measurement of solar neutrino interaction rate below 3.49 MeV in Super-Kamiokande-IV}, year = {2025}, journal = {arXiv}, url = {https://arxiv.org/abs/2512.19887}, }

Akses Cepat

Lihat di Sumber

Informasi Jurnal

Tahun Terbit: 2025
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓