BibTex format
@article{Locke:2024:10.1103/PhysRevD.110.032003,
author = {Locke, S and Coffani, A and Abe, K and Bronner, C and Hayato, Y and Ikeda, M and Imaizumi, S and Ito, H and Kameda, J and Kataoka, Y and Miura, M and Moriyama, S and Nagao, Y and Nakahata, M and Nakajima, Y and Nakayama, S and Okada, T and Okamoto, K and Orii, A and Pronost, G and Sekiya, H and Shiozawa, M and Sonoda, Y and Suzuki, Y and Takeda, A and Takemoto, Y and Takenaka, A and Tanaka, H and Yano, T and Hirade, K and Kanemura, Y and Miki, S and Watabe, S and Han, S and Kajita, T and Okumura, K and Tashiro, T and Xia, J and Wang, X and Megias, GD and Bravo-Berguño, D and Labarga, L and Marti, L and Zaldivar, B and Pointon, BW and Blaszczyk, FDM and Kearns, E and Raaf, JL and Stone, JL and Wan, L and Wester, T and Bian, J and Griskevich, NJ and Kropp, WR and Mine, S and Smy, MB and Sobel, HW and Takhistov, V and Weatherly, P and Yankelevich, A and Hill, J and Kim, JY and Lim, IT and Park, RG and Bodur, B and Scholberg, K and Walter, CW and Bernard, L and Drapier, O and Hedri, SE and},
doi = {10.1103/PhysRevD.110.032003},
journal = {Physical Review D},
title = {New methods and simulations for cosmogenic induced spallation removal in Super-Kamiokande-IV},
url = {http://dx.doi.org/10.1103/PhysRevD.110.032003},
year = {2024}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Radioactivity induced by cosmic muon spallation is a dominant source of backgrounds for O(10 MeV) neutrino interactions in water Cherenkov detectors. In particular, it is crucial to reduce backgrounds to measure the solar neutrino spectrum and find neutrino interactions from distant supernovae. In this paper we introduce new techniques to locate muon-induced hadronic showers and efficiently reject spallation backgrounds. Applying these techniques to the solar neutrino analysis with an exposure of 2790×22.5 kton·day increases the signal efficiency by 12.6%, approximately corresponding to an additional year of detector running. Furthermore, we present the first spallation simulation at Super-Kamiokande, where we model hadronic interactions using fluka. The agreement between the isotope yields and shower pattern in this simulation and in the data gives confidence in the accuracy of this simulation, and thus opens the door to use it to optimize muon spallation removal in new data with gadolinium-enhanced neutron capture detection.
AU - Locke,S
AU - Coffani,A
AU - Abe,K
AU - Bronner,C
AU - Hayato,Y
AU - Ikeda,M
AU - Imaizumi,S
AU - Ito,H
AU - Kameda,J
AU - Kataoka,Y
AU - Miura,M
AU - Moriyama,S
AU - Nagao,Y
AU - Nakahata,M
AU - Nakajima,Y
AU - Nakayama,S
AU - Okada,T
AU - Okamoto,K
AU - Orii,A
AU - Pronost,G
AU - Sekiya,H
AU - Shiozawa,M
AU - Sonoda,Y
AU - Suzuki,Y
AU - Takeda,A
AU - Takemoto,Y
AU - Takenaka,A
AU - Tanaka,H
AU - Yano,T
AU - Hirade,K
AU - Kanemura,Y
AU - Miki,S
AU - Watabe,S
AU - Han,S
AU - Kajita,T
AU - Okumura,K
AU - Tashiro,T
AU - Xia,J
AU - Wang,X
AU - Megias,GD
AU - Bravo-Berguño,D
AU - Labarga,L
AU - Marti,L
AU - Zaldivar,B
AU - Pointon,BW
AU - Blaszczyk,FDM
AU - Kearns,E
AU - Raaf,JL
AU - Stone,JL
AU - Wan,L
AU - Wester,T
AU - Bian,J
AU - Griskevich,NJ
AU - Kropp,WR
AU - Mine,S
AU - Smy,MB
AU - Sobel,HW
AU - Takhistov,V
AU - Weatherly,P
AU - Yankelevich,A
AU - Hill,J
AU - Kim,JY
AU - Lim,IT
AU - Park,RG
AU - Bodur,B
AU - Scholberg,K
AU - Walter,CW
AU - Bernard,L
AU - Drapier,O
AU - Hedri,SE
AU - Giampaolo,A
AU - Gonin,M
AU - Mueller,TA
AU - Paganini,P
AU - Quilain,B
AU - Santos,AD
AU - Ishizuka,T
AU - Nakamura,T
AU - Jang,JS
AU - Learned,JG
AU - Anthony,LHV
AU - Sztuc,AA
AU - Uchida,Y
AU - Martin,D
AU - Scott,M
AU - Berardi,V
AU - Catanesi,MG
AU - Radicioni,E
AU - Calabria,NF
AU - Machado,LN
AU - De,Rosa G
AU - Collazuol,G
AU - Iacob,F
AU - Lamoureux,M
AU - Ospina,N
AU - Mattiazzi,M
AU - Ludovici,L
AU - Nishimura,Y
AU - Maewaka,Y
AU - Cao,S
DO - 10.1103/PhysRevD.110.032003
PY - 2024///
SN - 2470-0010
TI - New methods and simulations for cosmogenic induced spallation removal in Super-Kamiokande-IV
T2 - Physical Review D
UR - http://dx.doi.org/10.1103/PhysRevD.110.032003
ER -