Study of electron-neutrino--electron elastic scattering at LAMPF

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.11· OSTI ID:6786647

Allen, R C; Chen, H H; Doe, P J; Hausammann, R; Lee, W P; Lu, X Q; 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 92717 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
3. Argonne National Laboratory, Argonne, Illinois 60439 (United States) University of Maryland, College Park, Maryland 20742 (United States)

Neutrino-electron elastic scattering was observed with a 15-ton fine-grained tracking calorimeter exposed to electron neutrinos from muon decay at rest. The measured [nu][sub [ital e]e][sup [minus]][r arrow][nu][sub [ital e]e][sup [minus]] elastic scattering rate of 236[plus minus]35 events yields the total elastic scattering cross section 10.0[plus minus]1.5(stat)[plus minus]0.9(syst)[times]10[sup [minus]45] cm[sup 2][times][[ital E][sub [nu]] (MeV)], and a model-independent measurement of the strength of the destructive interference between the charged and neutral currents, [ital I]=[minus]1.07[plus minus]0.21, that agrees well with the standard model (SM) prediction [ital I]=[minus]1.08. The agreement between the measured electroweak parameters and SM expectations is used to place limits on neutrino properties, such as neutrino flavor-changing neutral currents and neutrino electromagnetic moments. Limits are placed on the masses of new bosons that interact with leptons: for a neutral tensor boson, [ital M][sub [ital T]][gt]105 GeV; for a neutral (pseudo)scalar boson, [ital M][sub [ital P],][ital S][gt]47 GeV; for a charged Higgs boson, [ital M][sub [chi]][sup +][gt]87 GeV; and for a purely left-handed charged (neutral) vector boson, [ital M][sub [ital x]][gt]239 (119) GeV.

• DOE Contract Number: AC05-76ER02504; W-31109-ENG-38; W-7405-ENG-36
• OSTI ID: 6786647
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:1; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662310* -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ALGEBRAIC CURRENTS
BOSONS
CALORIMETERS
CHARGED CURRENTS
COMPOSITE MODELS
CROSS SECTIONS
CURRENTS
DECAY
DIAGRAMS
ELASTIC SCATTERING
ELEMENTARY PARTICLES
FERMIONS
FEYNMAN DIAGRAM
FLAVOR MODEL
HIGGS BOSONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LAMPF LINAC
LEPTON-LEPTON INTERACTIONS
LEPTONS
LINEAR ACCELERATORS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON FACTORIES
MUONS
NEUTRAL CURRENTS
NEUTRINO-ELECTRON INTERACTIONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUARK MODEL
SCATTERING
SPACE-TIME
STANDARD MODEL
TOTAL CROSS SECTIONS
UNIFIED GAUGE MODELS
W MINUS BOSONS
W PLUS BOSONS
Z NEUTRAL BOSONS