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Titolo:
Detection of accelerator-produced neutrinos at a distance of 250 km
Autore:
Ahn, SH; An, S; Aoki, A; Berns, HG; Bhang, HC; Boyd, S; Casper, D; Chikamatsu, T; Choi, JH; Echigo, S; Etoh, M; Fujii, K; Fukuda, S; Fukuda, Y; Gajewski, W; Golebiewska, U; Hara, T; Hasegawa, T; Hayato, Y; Hill, J; Hong, SJ; Ieiri, M; Inada, T; Inagaki, T; Ishida, T; Ishii, H; Ishii, T; Ishino, H; Ishitsuka, M; Itow, Y; Iwashita, T; Jang, HI; Jang, JS; Jeon, EJ; Jeong, EM; Jung, CK; Kadowaki, T; Kajita, T; Kameda, J; Kaneyuki, K; Kato, I; Kato, Y; Kearns, E; Kenmochi, S; Khang, BH; Kibayashi, A; Kielczewska, D; Kim, BJ; Kim, CO; Kim, HI; Kim, JH; Kim, JY; Kim, SB; Kishi, S; Kitamura, M; Kobayashi, K; Kobayashi, T; Kobayashi, Y; Kohama, M; Koo, DG; Koshio, Y; Kropp, W; Kume, G; Kusano, E; Learned, JG; Lee, HK; Lee, JW; Lee, SB; Lim, IT; Lim, SH; Maesaka, H; Martens, K; Maruyama, T; Matsuno, S; Mauger, C; McGrew, C; Minakawa, M; Mine, S; Miura, M; Miyamoto, S; Miyano, K; Moriyama, S; Mukai, S; Nakahata, M; Nakamura, K; Nakamura, M; Nakano, I; Nakaya, T; Nakayama, S; Nakayoshi, K; Nishijima, K; Nishikawa, K; Nishiyama, S; Noda, S; Noumi, H; Obayashi, Y; Oh, JK; Okada, A; Onchi, M; Otaki, T; Oyama, Y; Pac, MY; Park, H; Park, SH; Park, SK; Sakai, A; Sakuda, M; Sakurai, N; Sasao, N; Sato, K; Scholberg, K; Seo, E; Sharkey, E; Shiino, K; Shima, A; Shiozawa, M; So, H; Sobel, H; Stachyra, A; Stone, JL; Sulak, LR; Suzuki, A; Suzuki, Y; Suzuki, Y; Takasaki, M; Takatsuki, M; Takenaka, K; Takeuchi, H; Takeuchi, Y; Tamura, N; Tanaka, KH; Tanaka, Y; Tashiro, K; Tauchi, K; Toshito, T; Totsuka, Y; Tumakov, V; Umeda, T; Vagins, M; Walter, CW; Wilkes, RJ; Yamada, S; Yamaguchi, T; Yamanoi, Y; Yanagisawa, C; Yokoyama, H; Yokoyama, H; Yoo, J; Yoshida, M; You, SY;
Indirizzi:
Boston Univ, Dept Phys, Boston, MA 02215 USA Boston Univ Boston MA USA 02215 ton Univ, Dept Phys, Boston, MA 02215 USA Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA Univ Calif Irvine Irvine CA USA 92697 Phys & Astron, Irvine, CA 92697 USA Chonnam Natl Univ, Dept Phys, Kwangju 500757, South Korea Chonnam Natl Univ Kwangju South Korea 500757 Kwangju 500757, South Korea Dongshin Univ, Dept Phys, Naju, South Korea Dongshin Univ Naju South Korea gshin Univ, Dept Phys, Naju, South Korea Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA Univ Hawaii Honolulu HI USA 96822 t Phys & Astron, Honolulu, HI 96822 USA KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan KEK Tsukuba Ibaraki Japan 3050801 tudies, Tsukuba, Ibaraki 3050801, Japan Kobe Univ, Kobe, Hyogo 6578501, Japan Kobe Univ Kobe Hyogo Japan 6578501Kobe Univ, Kobe, Hyogo 6578501, Japan Korea Univ, Dept Phys, Seoul 136701, South Korea Korea Univ Seoul South Korea 136701 Dept Phys, Seoul 136701, South Korea Kyoto Univ, Dept Phys, Kyoto 6068502, Japan Kyoto Univ Kyoto Japan 6068502 oto Univ, Dept Phys, Kyoto 6068502, Japan SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA SUNY StonyBrook Stony Brook NY USA 11794 tron, Stony Brook, NY 11794 USA Niigata Univ, Dept Phys, Niigata 9502181, Japan Niigata Univ Niigata Japan 9502181 iv, Dept Phys, Niigata 9502181, Japan Okayama Univ, Dept Phys, Okayama 7008530, Japan Okayama Univ Okayama Japan 7008530 iv, Dept Phys, Okayama 7008530, Japan Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan Osaka Univ ToyonakaOsaka Japan 5600043 s, Toyonaka, Osaka 5600043, Japan Sci Univ Tokyo, Dept Phys, Noda, Chiba 2780022, Japan Sci Univ Tokyo NodaChiba Japan 2780022 Phys, Noda, Chiba 2780022, Japan Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 Phys, Seoul 151742, South Korea Tohoku Univ, Res Ctr Neutrino Sci, Sendai, Miyagi 9808578, Japan Tohoku Univ Sendai Miyagi Japan 9808578 ci, Sendai, Miyagi 9808578, Japan Tokai Univ, Dept Phys, Hiratsuka, Kanagawa 2591292, Japan Tokai Univ Hiratsuka Kanagawa Japan 2591292 suka, Kanagawa 2591292, Japan Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan Univ Tokyo Kashiwa Chiba Japan 2778582 Res, Kashiwa, Chiba 2778582, Japan Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland Univ Warsaw Warsaw Poland PL-00681 st Expt Phys, PL-00681 Warsaw, Poland Univ Washington, Dept Phys, Seattle, WA 98195 USA Univ Washington SeattleWA USA 98195 on, Dept Phys, Seattle, WA 98195 USA
Titolo Testata:
PHYSICS LETTERS B
fascicolo: 2-4, volume: 511, anno: 2001,
pagine: 178 - 184
SICI:
0370-2693(20010705)511:2-4<178:DOANAA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZENITH-ANGLE DISTRIBUTION; GEV ENERGY-RANGE; SUPER-KAMIOKANDE; FLUX; RATIO; MUONS; OSCILLATION; LINE; GPS; K2K;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Ahn, SH Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USABoston Univ 590 Commonwealth Ave Boston MA USA 02215 MA 02215 USA
Citazione:
S.H. Ahn et al., "Detection of accelerator-produced neutrinos at a distance of 250 km", PHYS LETT B, 511(2-4), 2001, pp. 178-184

Abstract

The KEK to Kamioka long-baseline neutrino experiment (K2K) has begun its investigation of neutrino oscillations suggested by atmospheric neutrino observations. Twenty-eight neutrino events have been detected in coincidence with the expected arrival time of the beam in the 22.5 kt fiducial volume ofSuper-Kamiokande, the far detector at 250 km distance. The expectation is 37.8(-3.8)(+3.5), derived using measurements of neutrino interactions in a near detector and extrapolation using a beam simulation validated by a measurement of pion kinematics after production and focusing. The background isof order 10(-3) events. (C) 2001 Published by Elsevier Science B.V.

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Documento generato il 04/04/20 alle ore 09:11:40