New measurements of the electron-neutron spin asymmetry in neutron beta-decay

Erozolimskii, B.G.; Kuznetsov, I.A.; Stepanenko, I.V.; Kuida, I.A.; Mostovoi, Yu.A.

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New measurements of the electron-neutron spin asymmetry in neutron beta-decay

Erozolimskii, B.G.; Kuznetsov, I.A.; Stepanenko, I.V.; Kuida, I.A.; Mostovoi, Yu.A.1991

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AbstractAbstract

[en] The A-coefficient, which characterizes the angular correlation between the electron escape and the decaying neutron spin directions, is measured in an intense polarized neutron beam from the new vertical channel of the LNPI reactor. The result is A=-0.1131±0.0014 (A₀=-0.1116±0.0014), implying λ=g_A/g_V=-1.2544±0.0036 for the ratio of the weak coupling constants. (orig.)

Primary Subject

PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2360)

Secondary Subject

PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2210)

Record Type

Journal Article

Literature Type

Numerical Data

Journal

Physics Letters, (Section) B; ISSN 0370-2693;

; CODEN PYLBA; v. 263(1); p. 33-38

Country of publication

Netherlands

Descriptors (DEI)

ANGULAR DISTRIBUTION, AXIAL-VECTOR CURRENTS, CHARGED-CURRENT INTERACTIONS, COUPLING CONSTANTS, EXPERIMENTAL DATA, NEUTRONS, SEMILEPTONIC DECAY, SPIN ORIENTATION, VECTOR CURRENTS, WEAK CHARGED CURRENTS

Descriptors (DEC)

ALGEBRAIC CURRENTS, BARYONS, CHARGED CURRENTS, CURRENTS, DATA, DECAY, DISTRIBUTION, ELEMENTARY PARTICLES, FERMIONS, HADRONS, INFORMATION, INTERACTIONS, NUCLEONS, NUMERICAL DATA, ORIENTATION, PARTICLE DECAY, PARTICLE INTERACTIONS, WEAK PARTICLE DECAY

Reference NumberReference Number

23020237

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