Determination of electroweak parameters from the elastic scattering of muon neutrinos and antineutrinos on electrons

• Published in: Physical review. D, Particles and fields Particles and fields, 1990-06, Vol.41 (11), p.3297-3316
• Main Authors: Ahrens, LA, Aronson, SH, Connolly, PL, Gibbard, BG, Murtagh, MJ, Murtagh, SJ, Terada, S, White, DH, Callas, JL, Cutts, D, Diwan, MV, Hoftun, JS, Hughlock, BW, Lanou, RE, Shinkawa, T, Kurihara, Y, Amako, K, Kabe, S, Nagashima, Y, Suzuki, Y, Tatsumi, S, Yamaguchi, Y, Abe, K, Beier, EW, Doughty, DC, Durkin, LS, Heagy, SM, Hurley, M, Mann, AK, Newcomer, FM, Williams, HH, York, T, Hedin, D, Marx, MD, Stern, E
• Format: Article
• Language: English
• Subjects: ACCELERATORS; ANTINEUTRINO-ELECTRON INTERACTIONS; BROOKHAVEN AGS; CROSS SECTIONS; CYCLIC ACCELERATORS; DATA; DIFFERENTIAL CROSS SECTIONS; ELASTIC SCATTERING; ELEMENTARY PARTICLES; EXPERIMENTAL DATA; FERMIONS; FIELD THEORIES; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MAGNETIC MOMENTS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MUON NEUTRINOS; NEUTRAL-CURRENT INTERACTIONS; NEUTRINO-ELECTRON INTERACTIONS; NEUTRINOS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PARTICLE RADII; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; SCATTERING; SYNCHROTRONS; TOTAL CROSS SECTIONS; UNIFIED GAUGE MODELS; UNIFIED-FIELD THEORIES 645102 > High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties; WEINBERG-SALAM GAUGE MODEL
• ISSN: 0556-2821; 1089-4918
• DOI: 10.1103/physrevd.41.3297

Total and differential cross sections for {nu}{sub {mu}}{ital e}{r arrow}{nu}{sub {mu}}{ital e} and {bar {nu}}{sub {mu}}{ital e}{r arrow}{bar {nu}}{sub {mu}}{ital e} are measured. Values for the model-independent neutral-current couplings of the electron are found to be {ital g}{sub {ital V}}={minus}0.107{plus minus}0.035(stat){plus minus}0.028(syst) and {ital g}{sub {ital A}}={minus}0.514{plus minus}0.023(stat){plus minus}0.028(syst). The electroweak mixing parameter sin{sup 2}{theta}{sub {ital W}} is determined to be 0.195{plus minus}0.018(stat){plus minus}0.013(syst). Limits are set for the charge radius and magnetic moment of the neutrino as ({l angle}{ital r}{sup 2}{r angle}){lt}0.24{times}10{sup {minus}32} cm{sup 2} and {ital f}{sub {mu}}{lt}0.85{times}10{sup {minus}9} Bohr magnetons, respectively.