6533b7d4fe1ef96bd12631ab

RESEARCH PRODUCT

A measurement of the antineutrino asymmetry B in free neutron decay

D. MundC. PlonkaValery NesvizhevskyT. SoldnerFerenc GlückJ. ReichM. KreuzS. BaeßlerA. PetoukhovB. BrandU. MayerC. VogelHartmut Abele

subject

Systematic errorPhysicsNuclear and High Energy PhysicsParticle physicsmedia_common.quotation_subjectWeak interactionBeta decayAsymmetryNuclear physicsMomentumDouble beta decayHigh Energy Physics::ExperimentNeutronNuclear ExperimentSpin-½media_common

description

Abstract We have measured the antineutrino asymmetry B in neutron beta decay, i.e., the correlation of the neutron spin and the antineutrino momentum, with a new method. Our result is B = 0.967 ± 0.006 stat ± 0.010 syst = 0.967 ± 0.012 . Statistical and systematic uncertainty can be considerably reduced in future experiments.

yearjournalcountryeditionlanguage
2005-07-01Physics Letters B
https://doi.org/10.1016/j.physletb.2005.05.074