Measurement of interference between W and Z exchange in electron-neutrino electron scattering

Journal Article · Mon Mar 19 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.1330· OSTI ID:6829312

Allen, R C; Chen, H H; Doe, P J; Hausammann, R; Lee, W P; Mahler, H J; Potter, M E; Lu, X Q; Wang, K C ^[1]; Bowles, T J; Burman, R L; Carlini, R D; Cochran, D R.F.; Frank, J S; Piasetzky, E; Sandberg, V D ^[2]; Krakauer, D A; Talaga, R L ^[3]

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1. University of California, Irvine, California 92717 (USA)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)
3. University of Maryland, College Park, Maryland 20742 (USA)

A measurement of the reaction {nu}{sub {ital e}}+{ital e}{sup {minus}}{r arrow}{nu}{sub {ital e}}+{ital e}{sup {minus}} was performed using a beam-stop source of {nu}{sub {ital e}}. Based upon 234{plus minus}35 events, we obtain a cross section of {sigma}({nu}{sub {ital ee}})=(9.9{plus minus}1.5(stat){plus minus}1.0(syst)){times}10{sup {minus}42} cm{sup 2} {times}({ital E}{sub {nu}} (GeV)). This reaction is mediated by the exchange of {ital W} and {ital Z} bosons and is thus sensitive to the interference between them. This interference is measured to be {minus}1.07{plus minus}0.17(stat){plus minus}0.11(syst), consistent with the destructive interference ({minus}1.08) predicted by the standard model.

• OSTI ID: 6829312
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:12; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BOSONS
CROSS SECTIONS
DATA
DISTRIBUTION
ELASTIC SCATTERING
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
EXPERIMENTAL DATA
INFORMATION
INTERACTIONS
INTERFERENCE
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MONTE CARLO METHOD
NEUTRINO-ELECTRON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
SCATTERING
SPECTRA
STANDARD MODEL
UNIFIED GAUGE MODELS