The GALLEX solar neutrino experiment

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:6851583

Hahn, R L

The recently published GALLEX result, 83 [plus minus] 19 (stat.) [plus minus]8 (syst.) SNU (10[sigma]), was obtained from data accumulated from 14 solar runs (with counting done to May, 1992). This value, while 2 standard deviations below the predictions of solar models, provided the first direct evidence for solar pp neutrinos. The signature for neutrino capture in the aqueous gallium-chloride detector was the observation of the characteristic energy spectrum (K and L X rays/Auger electrons), decaying with the half-life of the chemically isolated radioactive product, [sup 71]Ge. By adding to the data set 1 more solar run plus 4 additional months of counting (to September, 1992), an updated value of the GALLEX production rate was obtained, which, interestingly, does not differ perceptibly from our published value.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6851583
• Report Number(s): BNL-48171; CONF-921122-5; ON: DE93003357
• Resource Relation: Conference: Meeting of the Division of Particles and Fields of the American Physics Society, Batavia, IL (United States), 10-14 Nov 1992
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SOLAR NEUTRINOS
NEUTRINO DETECTION
SUN
HYDROGEN BURNING
GALLIUM CHLORIDES
PARTICLE PRODUCTION
PROPORTIONAL COUNTERS
STAR MODELS
CHLORIDES
CHLORINE COMPOUNDS
DETECTION
ELEMENTARY PARTICLES
FERMIONS
GALLIUM COMPOUNDS
GALLIUM HALIDES
HALIDES
HALOGEN COMPOUNDS
LEPTONS
MAIN SEQUENCE STARS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NEUTRINOS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
SOLAR PARTICLES
SOLAR RADIATION
STAR BURNING
STARS
STELLAR RADIATION
661300* - Other Aspects of Physical Science- (1992-)