Experimental study of the atmospheric neutrino backgrounds forp→e+π0searches in water Cherenkov detectors

S Mine,Y Obayashi,S Moriyama,T Kutter,P Kitching,K Nakamura,R Terri,T Nakadaira,I Kato,C Saji,R Nambu,Y Hayato,S Likhoded,E Kearns,Y Kuno,C Mcgrew,T Kobayashi,M Miura,C W Walter,E J Jeon,R L Helmer,T Hasegawa,Y Totsuka,K Nishikawa,U Dore,M Y Pac,R Ashie,G Jover,C Yanagisawa,T Iwashita,C Cavata,J Bouchez,Y Takenaga,K Taki,R Gran,K Kaneyuki,A Konaka,S Matsuno,K Mcconnel,A Cervera,G Sitjes,J Zalipska,J Hosaka,A Minamino,P Novella,A Blondel,T Hara,Y Fukuda,I T Lim,H Maesaka,J Argyriades,T Ishii,R J Wilkes,F Pierre,F Nova,S M Oser,L Ludovici,S Nawang,A Suzuki,Y Takeuchi,A K Ichikawa,J Kameda,C Mitsuda,N Yershov,K K Joo,R Schroeter,J G Learned ,Munekazu Iinuma ,M Yokoyama,M R Vagins ,Kazuyoshi Kobayashi ,C K Jung,D Casper,Shuji Yamamoto ,J L Stone ,K Nitta,Y Yamada,J H Choi,M Shiozawa,J Yoo,In Seok Jeong ,C O Kim,T Nakaya,T Kajita,F Berghaus,C Mariani,J Alcaraz ,Y Takubo,S Borghi,Kiyoshi Shiraishi ,A Tornero-López ,S B Kim,M Sekiguchi,Masato Yoshida ,M Ishitsuka,M Fechner,M Sakuda,J Catala,K Ishihara,N Tamura,M Nakahata,Y Suzuki,H Bhang,Atsushi Okada ,В.а Матвеев ,M Hasegawa,Y Moriguchi,Shigeki Aoki ,K Scholberg,H W Sobel ,S Nakayama,F J Munoz Sanchez ,Akira Ikeda ,K Okumura,M Khabibullin,S Mikheyev,K Hiraide,J Mallet,J J Gómez-Cadenas ,D Kiełczewska ,X Espinal Curull ,Y Koshio,J Y Kim,T Namba,S M Chen,K Asakura,Shoichi Yamada ,L Whitehead,Yoshinori Kurimoto ,M Tada,Toru Ishida ,P Loverre ,Takuya Takahashi ,M B Smy ,E Fernández ,Hiromi Yokoyama ,Y Fujii,M Tanaka,W R Kropp ,Y Kudenko ,I Nakano,Y Oyama,S Andringa,K O Cho,Y Itow,M Sorel,H I Jang,L Sulak,H Berns,A Rodríguez ,J Burguet–Castell ,S T’Jampens,W Wang,A Khotjantsev,O Mineev

doi:10.1103/physrevd.77.032003

Experimental study of the atmospheric neutrino backgrounds forp→e+π0searches in water Cherenkov detectors

S Mine, Y Obayashi + Show 153 more

Open Access

https://doi.org/10.1103/physrevd.77.032003

Copy DOI

Journal: Physical Review D	Publication Date: Feb 25, 2008
Citations: 9

Affiliation: University of California, Irvine, The University of Tokyo, University of British Columbia, Louisiana State University, TRIUMF, High Energy Accelerator Research Organization, Stony Brook University, State University of New York, Boston University, Osaka University, Duke University, Seoul National University, Sapienza University of Rome, Dongshin University, Institute for High Energy Physics, Autonomous University of Barcelona, Direction des énergies, CEA Saclay, Atomic Energy and Alternative Energies Commission, University of Washington, University of Hawaii System, Massachusetts Institute of Technology, University of Geneva, Instituto de Física Corpuscular, National Centre for Nuclear Research, Kobe University, Miyagi University of Education, Chonnam National University, Kyoto University, Hiroshima University, Institute for Nuclear Research, Korea University, Okayama University of Science, Niigata University, University of Warsaw, Tokyo University of Science

#Water Cherenkov Detectors #Atmospheric Neutrino + Show 8 more

Abstract
Full-Text PDF
Similar Papers

Abstract

The atmospheric neutrino background for proton decay via p→e + π 0 in ring imaging water Cherenkov detectors is studied with an artificial accelerator neutrino beam for the first time. In total, 3.14 × 10 5 neutrino events corresponding to about 10 megaton-years of atmospheric neutrino interactions were collected by a 1000 ton water Cherenkov detector (KT). The KT charged-current single π 0 production data are well reproduced by simulation programs of neutrino and secondary hadronic interactions used in the Super-Kamiokande (SK) proton decay search. The obtained p→ e + π 0 background rate by the KT data for SK from the atmospheric neutrinos whose energies are below 3 GeV is 1.63 +0.42 -0.33 (stat) +0.45 -0.51 (syst)(megaton-year) -1 . This result is also relevant to possible future, megaton-scale water Cherenkov detectors.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Similar Papers

Paper Title

Journal

Date

Author

View more papers

More From: Physical Review D

Paper Title

Journal

Date

Author

View more papers

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.