Sharpening Low-Energy, Standard-Model Tests via Correlation Coefficients in Neutron Beta-Decay

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dc.creatorGardner, S.
dc.creatorZhang, C.
dc.date2000-12-08
dc.date2001-04-30
dc.date.accessioned2026-07-07T11:31:01Z
dc.date.available2026-07-07T11:31:01Z
dc.descriptionThe correlation coefficients a, A, and B in neutron beta-decay are proportional to the ratio of the axial-vector to vector weak coupling constants, g_A/g_V, to leading recoil order. With the advent of the next generation of neutron decay experiments, the recoil-order corrections to these expressions become experimentally accessible, admitting a plurality of Standard Model (SM) tests. The measurement of both a and A, e.g., allows one to test the conserved-vector-current (CVC) hypothesis and to search for second-class currents (SCC) independently. The anticipated precision of these measurements suggests that the bounds on CVC violation and SCC from studies of nuclear beta-decay can be qualitatively bettered. Departures from SM expectations can be interpreted as evidence for non-V-A currents.
dc.description4 pages, REVTeX, intro. broadened, typos fixed, to appear in PRL
dc.identifierhttps://arxiv.org/abs/hep-ph/0012098
dc.identifierhttp://arxiv.org/abs/hep-ph/0012098
dc.identifierPhys.Rev.Lett.86:5666-5669,2001
dc.identifierdoi:10.1103/PhysRevLett.86.5666
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197140
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titleSharpening Low-Energy, Standard-Model Tests via Correlation Coefficients in Neutron Beta-Decay
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