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ENG

EVIDENCE FOR OSCILLATION OF ATMOSPHERIC NEUTRINOS

Authors

FUKUDA Y HAYAKAWA T ICHIHARA E INOUE K ISHIHARA K ISHINO H ITOW Y KAJITA T KAMEDA J KASUGA S KOBAYASHI K KOBAYASHI Y KOSHIO Y MIURA M NAKAHATA M NAKAYAMA S OKADA A OKUMURA K SAKURAI N SHIOZAWA M SUZUKI Y TAKEUCHI Y TOTSUKA Y YAMADA S EARL M HABIG A KEARNS E MESSIER MD SCHOLBERG K STONE JL SULAK LR WALTER CW GOLDHABER M BARSZCZXAK T CASPER D GAJEWSKI W HALVERSON PG HSU J KROPP WR PRICE LR REINES F SMY M SOBEL HW VAGINS MR GANEZER KS KEIG WE ELLSWORTH RW TASAKA S FLANAGAN JW KIBAYASHI A LEARNED JG MATSUNO S STENGER VJ TAKEMORI D ISHII T KANZAKI J KOBAYASHI T MINE S NAKAMURA K NISHIKAWA K OYAMA Y SAKAI A SAKUDA M SASAKI O ECHIGO S KOHAMA M SUZUKI AT HAINES TJ BLAUFUSS E KIM BK SANFORD R SVOBODA R CHEN ML CONNER Z GOODMAN JA SULLIVAN GW HILL J JUNG CK MARTENS K MAUGER C MCGREW C SHARKEY E VIREN B YANAGISAWA C DOKI W MIYANO K OKAZAWA H SAJI C TAKAHATA M NAGASHIMA Y TAKITA M YAMAGUCHI T YOSHIDA M KIM SB ETOH M FUJITA K HASEGAWA A HASEGAWA T HATAKEYAMA S IWAMOTO T KOGA M MARUYAMA T OGAWA H SHIRAI J SUZUKI A TSUSHIMA F KOSHIBA M NEMOTO M NISHIJIMA K FUTAGAMI T HAYATO Y KANAYA Y KANEYUKI K WATANABE Y KIELCZEWSKA D DOYLE RA GEORGE JS STACHYRA AL WAI LL WILKES RJ YOUNG KK

Citation

Y. Fukuda et al., EVIDENCE FOR OSCILLATION OF ATMOSPHERIC NEUTRINOS, Physical review letters, 81(8), 1998, pp. 1562-1567

Citations number

Categorie Soggetti

Physics

Journal title

Physical review letters → ACNP

ISSN journal

00319007

Volume

Issue

Year of publication

1998

Pages

1562 - 1567

Database

ISI

SICI code

0031-9007(1998)81:8<1562:EFOOAN>2.0.ZU;2-C

Abstract

We present an analysis of atmospheric neutrino data from a 33.0 kton y r (535-day) exposure of the Super-Kamiokande detector. The data exhibi t a zenith angle dependent deficit of muon neutrinos which is inconsis tent with expectations based on calculations of the atmospheric neutri no flux. Experimental biases and uncertainties in the prediction of ne utrino fluxes and cross sections are unable to explain our observation . The data are consistent, however, with two-flavor nu(mu),<----> nu(t au) oscillations With sin(2) 2 theta > 0.82 and 5 x 10(-4) < Delta m(2 ) < 6 x 10(-3) eV(2) at 90% confidence level.