Measurement of {nu}{sub e}-electron scattering cross section with a CsI(Tl) scintillating crystal array at the Kuo-Sheng nuclear power reactor

Journal Article · Thu Apr 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.072001· OSTI ID:21409450

Deniz, M; Bilmis, S ^[1]; Lin, S T; Wong, H T; Chang, H M; Chang, W C; Chen, C P; Chou, M H; Jon, G C; Lai, W P; Lee, F S; Lee, S C; Li, H B; Liao, H Y; Lin, C W; Lin, F K; Lin, S K; Wang, J J; Yang, S W ^[1]; Singh, V ^[1]

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1. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China)

The {nu}{sub e}-e{sup -} elastic scattering cross section was measured with a CsI(Tl) scintillating crystal array having a total mass of 187 kg. The detector was exposed to an average reactor {nu}{sub e} flux of 6.4x10{sup 12} cm{sup -2} s{sup -1} at the Kuo-Sheng Nuclear Power Station. The experimental design, conceptual merits, detector hardware, data analysis, and background understanding of the experiment are presented. Using 29882/7369 kg-days of Reactor ON/OFF data, the standard model (SM) electroweak interaction was probed at the squared 4-momentum transfer range of Q{sup 2{approx}}3x10{sup -6} GeV{sup 2}. The ratio of experimental to SM cross sections of {xi}=[1.08{+-}0.21(stat){+-}0.16(sys)] was measured. Constraints on the electroweak parameters (g{sub V},g{sub A}) were placed, corresponding to a weak mixing angle measurement of sin{sup 2{theta}}{sub W}=0.251{+-}0.031(stat){+-}0.024(sys). Destructive interference in the SM {nu}{sub e}-e process was verified. Bounds on anomalous neutrino electromagnetic properties were placed: neutrino magnetic moment at {mu}{sub {nu}{sub e}}<2.2x10{sup -10} {mu}{sub B} and the neutrino charge radius at -2.1x10{sup -32} cm{sup 2}<<r{sub {nu}}{sub e}{sup 2}><3.3x10{sup -32} cm{sup 2}, both at 90% confidence level.

• OSTI ID: 21409450
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 7; Other Information: DOI: 10.1103/PhysRevD.81.072001; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CESIUM IODIDES
CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON NEUTRINOS
ELECTRONS
INTERACTIONS
INTERFERENCE
MAGNETIC MOMENTS
MASS
MOMENTUM TRANSFER
NUCLEAR POWER PLANTS
SCATTERING
SCINTILLATION COUNTING
STANDARD MODEL
WEINBERG ANGLE
ALKALI METAL COMPOUNDS
CESIUM COMPOUNDS
COUNTING TECHNIQUES
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HALIDES
HALOGEN COMPOUNDS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NUCLEAR FACILITIES
PARTICLE MODELS
PHOSPHORS
POWER PLANTS
QUANTUM FIELD THEORY
THERMAL POWER PLANTS
UNIFIED GAUGE MODELS