Elsevier

Physics Letters B

Volume 327, Issues 3–4, 19 May 1994, Pages 377-385
Physics Letters B

GALLEX results from the first 30 solar neutrino runs

https://doi.org/10.1016/0370-2693(94)90744-7Get rights and content

Abstract

We report new GALLEX solar neutrino results from 15 runs covering 406 days (live time) within the exposure period 19 August 1992–13 October 1993 (“GALLEX II”). With counting data considered until 4 January 1994, the new result is [78±13 (stat.) ±5 (stat.)] SNU (1σ). It confirms our previous result for the 15 initial runs (“GALLEX I”) of [81±17(stat.)±9(syst.)] SNU. After two years of recording the solar neutrino flux with the GALLEX detector the combined result from 30 solar runs (GALLEX I + GALLEX II) is [79±10(stat.)±6(syst.)] SNU (1σ). In addition, 19 “blank” runs gave the expected null result. GALLEX neutrino experiments are continuing.

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    1

    This work has been supported by the German Federal Minister for Research and Technology (BMFT). This work has been generously supported by the ALFRIED KRUPP von BOHLEN und HALBACH-Foundation, Germany.

    2

    This work has been supported by Istituto Nazionale di Fisica Nucleare (INFN), Italy.

    3

    This work has been supported by the Commissariat à l'énergie atomique (CEA), France.

    4

    This work has been supported by the Office of High Energy and Nuclear Physics of the U.S. Department of Energy, United States.

    6

    Permanent address: Instytut Fizyki, Uniwersytet Jagiellonski, ul. Reymonta 4, PL-30059 Kraków, Poland.

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