Experimental bound on the charge radius of the electron neutrino

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.R1· OSTI ID:6255632

Allen, R C; Chen, H H; Doe, P J; Hausamann, R; Lee, W P; Lu, X; Mahler, H J; Potter, M E; 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 (USA)
2. Los Alamos National Laboratory, Los Alamos, New Mexico (USA)
3. University of Maryland, College Park, Maryland (USA)

A limit on the electron-neutrino charge radius {vert bar}{ital r}{vert bar} is derived from a measurement of the weak-neutral-current vector coupling constant {ital g}{sub {ital V}} obtained in electron-neutrino electron elastic scattering. The 90%-confidence interval for {ital g}{sub {ital V}} is {minus}0.177{lt}{ital g}{sub {ital V}}{lt}0.187, which for sin{sup 2}{theta}{sub {ital W}}=0.227 implies that the {nu}{sub {ital e}} mean-square charge radius is in the range {minus}2.74{times}10{sup {minus}32}{lt}{l angle}{ital r}{sup 2}{r angle}{lt}4.88{times}10{sup {minus}32} cm{sup 2}, or simply {vert bar}{ital r}{vert bar}{lt}2.2{times}10{sup {minus}16} cm. This is the first experimental bound on the {nu}{sub {ital e}} charge radius, and is the same order of magnitude as bounds for {nu}{sub {mu}} structure.

• OSTI ID: 6255632
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 43:1; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
NEUTRAL CURRENTS
FORM FACTORS
NEUTRINO-ELECTRON INTERACTIONS
ELASTIC SCATTERING
COUPLING CONSTANTS
EXPERIMENTAL DATA
LIMITING VALUES
STANDARD MODEL
ALGEBRAIC CURRENTS
CURRENTS
DATA
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
SCATTERING
UNIFIED GAUGE MODELS
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties
645101 - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties