MEASUREMENT OF A SMALL ATMOSPHERIC NU(MU) NU(E) RATIO/

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 MARTENS K MIURA M NAKAHATA M NAKAYAMA S OKADA A OKETA M OKUMURA K OTA M SAKURAI N SHIOZAWA M SUZUKI Y TAKEUCHI Y TOTSUKA Y YAMADA S EARL M HABIG A HONG JT KEARNS E KIM SB MASUZAWA M MESSIER MD SCHOLBERG K STONE JL SULAK LR WALTER CW GOLDHABER M BARSZCZAK T GAJEWSKI W HALVERSON PG HSU J KROPP WR PRICE LR REINES F SOBEL HW VAGINS MR GANEZER KS KEIG WE ELLSWORTH RW TASAKA S FLANAGAN JW KIBAYASHI A LEARNED JG MATSUNO S STENGER V TAKEMORI D ISHII T KANZAKI J KOBAYASHI T NAKAMURA K NISHIKAWA K OYAMA Y SAKAI A SAKUDA M SASAKI O ECHIGO S KOHAMA M SUZUKI AT HAINES TJ BLAUFUSS E SANFORD R SVOBODA R CHEN ML CONNER Z GOODMAN JA SULLIVAN GW MORI M GOEBEL F HILL J JUNG CK MAUGER C MCGREW C SHARKEY E VIREN B YANAGISAWA C DOKI W ISHIZUKA T KITAGUCHI Y KOGA H MIYANO K OKAZAWA H SAJI C TAKAHATA M KUSANO A NAGASHIMA Y TAKITA M YAMAGUCHI T YOSHIDA M ETOH M FUJITA K HASEGAWA A HASEGAWA T HATAKEYAMA S IWAMOTO T KINEBUCHI T KOGA M MARUYAMA T OGAWA H SAITO M SUZUKI A TSUSHIMA F KOSHIBA M NEMOTO M NISHIJIMA K FUTAGAMI T HAYATO Y KANAYA Y KANEYUKI K WATANABE Y KIELCZEWSKA D DOYLE R GEORGE J STACHYRA A WAI L WILKES J YOUNG K
Citation
Y. Fukuda et al., MEASUREMENT OF A SMALL ATMOSPHERIC NU(MU) NU(E) RATIO/, Physics letters. Section B, 433(1-2), 1998, pp. 9-18
Citations number
23
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
433
Issue
1-2
Year of publication
1998
Pages
9 - 18
Database
ISI
SICI code
0370-2693(1998)433:1-2<9:MOASAN>2.0.ZU;2-#
Abstract
From an exposure of 25.5 kiloton-years of the Super-Kamiokande detecto r, 900 muon-like and 983 electron-like single-ring atmospheric neutrin o interactions were detected with momentum p(e) > 100 MeV/c, p(mu) > 2 00 MeV/c, and with visible energy less than 1.33 GeV. Using a detailed Monte Carlo simulation, the ratio (mu/e)(DATA)/(mu/e)(MC) was measure d to be 0.61 +/- 0.03(stat.) +/- 0.05(sys.), consistent with previous results from the Kamiokande, IMB and Soudan-2 experiments, and smaller than expected from theoretical models of atmospheric neutrino product ion. (C) 1998 Published by Elsevier Science B.V. All rights reserved.