Measurement of Neutrino-Nucleon Neutral-Current Elastic Scattering Cross-section at SciBooNE

Takei, Hideyuki

doi:10.2172/957570

Title: Measurement of Neutrino-Nucleon Neutral-Current Elastic Scattering Cross-section at SciBooNE

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Abstract

In this thesis, results of neutrino-nucleon neutral current (NC) elastic scattering analysis are presented. Neutrinos interact with other particles only with weak force. Measurement of cross-section for neutrino-nucleon reactions at various neutrino energy are important for the study of nucleon structure. It also provides data to be used for beam flux monitor in neutrino oscillation experiments. The cross-section for neutrino-nucleon NC elastic scattering contains the axial vector form factor G_A(Q²) as well as electromagnetic form factors unlike electromagnetic interaction. G_A is propotional to strange part of nucleon spin (Δs) in Q² → 0 limit. Measurement of NC elastic cross-section with smaller Q² enables us to access Δs. NC elastic cross-sections of neutrino-nucleon and antineutrino-nucleon were measured earlier by E734 experiment at Brookheaven National Laboratory (BNL) in 1987. In this experiment, cross-sections were measured in Q² > 0.4 GeV² region. Result from this experiment was the only published data for NC elastic scattering cross-section published before our experiment. SciBooNE is an experiment for the measurement of neutrino-nucleon scattering cross-secitons using Booster Neutrino Beam (BNB) at FNAL. BNB has energy peak at 0.7 GeV. In this energy region, NC elastic scattering, charged current elastic scattering, charged current pion production, and neutral currentmore »« less

Authors:

Takei, Hideyuki ^[1]

Tokyo Inst. of Technology (Japan)

Publication Date:: Sun Feb 01 00:00:00 EST 2009

Research Org.:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 957570

Report Number(s):: FERMILAB-THESIS-2009-19
TRN: US1000651

DOE Contract Number:: AC02-07CH11359

Resource Type:: Thesis/Dissertation

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHARGED CURRENTS; CROSS SECTIONS; ELASTIC SCATTERING; ELECTROMAGNETIC FORM FACTORS; ELECTROMAGNETIC INTERACTIONS; FORM FACTORS; MUONS; NEUTRAL CURRENTS; NEUTRAL PARTICLES; NEUTRINO BEAMS; NEUTRINO OSCILLATION; NEUTRINOS; NEUTRONS; NUCLEONS; PARTICLE TRACKS; PHOSPHORS; PIONS; PROTONS; SCATTERING; SPIN; VECTORS

Citation Formats


                    Takei, Hideyuki. Measurement of Neutrino-Nucleon Neutral-Current Elastic Scattering Cross-section at SciBooNE.  United States: N. p., 2009. 
        Web.  doi:10.2172/957570.

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                    Takei, Hideyuki. Measurement of Neutrino-Nucleon Neutral-Current Elastic Scattering Cross-section at SciBooNE.  United States.  https://doi.org/10.2172/957570

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                    Takei, Hideyuki. 2009.  
        "Measurement of Neutrino-Nucleon Neutral-Current Elastic Scattering Cross-section at SciBooNE".  United States.  https://doi.org/10.2172/957570.  https://www.osti.gov/servlets/purl/957570.

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@article{osti_957570,

  title        = {Measurement of Neutrino-Nucleon Neutral-Current Elastic Scattering Cross-section at SciBooNE},

  author       = {Takei, Hideyuki},

  abstractNote = {In this thesis, results of neutrino-nucleon neutral current (NC) elastic scattering analysis are presented. Neutrinos interact with other particles only with weak force. Measurement of cross-section for neutrino-nucleon reactions at various neutrino energy are important for the study of nucleon structure. It also provides data to be used for beam flux monitor in neutrino oscillation experiments. The cross-section for neutrino-nucleon NC elastic scattering contains the axial vector form factor GA(Q2) as well as electromagnetic form factors unlike electromagnetic interaction. GA is propotional to strange part of nucleon spin (Δs) in Q2 → 0 limit. Measurement of NC elastic cross-section with smaller Q2 enables us to access Δs. NC elastic cross-sections of neutrino-nucleon and antineutrino-nucleon were measured earlier by E734 experiment at Brookheaven National Laboratory (BNL) in 1987. In this experiment, cross-sections were measured in Q2 > 0.4 GeV2 region. Result from this experiment was the only published data for NC elastic scattering cross-section published before our experiment. SciBooNE is an experiment for the measurement of neutrino-nucleon scattering cross-secitons using Booster Neutrino Beam (BNB) at FNAL. BNB has energy peak at 0.7 GeV. In this energy region, NC elastic scattering, charged current elastic scattering, charged current pion production, and neutral current pion production are the major reaction branches. SciBar, electromagnetic calorimeter, and Muon Range Detector are the detectors for SciBooNE. The SciBar consists of finely segmented scintillators and 14336 channels of PMTs. It has a capability to reconstruct particle track longer than 8 cm and separate proton from muons and pions using energy deposit information. Signal of NC elastic scattering is a single proton track. In vp → vp process, the recoil proton is detected. On the other hand, most of vn → vn is invisible because there are only neutral particles in final state, but sometimes recoil neutron is scattered by proton and recoil proton is detected. Signal of this event is also single proton track. Event selection for the single proton track events using geometrical and dE/dx information of reconstructed track is performed. After the event selection, NC elastic scattering data sample is obtained. They includes vp → vp and vn → vn is obtained. Absolute cross-section as a function of Q2 is evaluated from this NC elastic scattering data sample.},

  doi          = {10.2172/957570},

  url          = {https://www.osti.gov/biblio/957570},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sun Feb 01 00:00:00 EST 2009},

  month        = {Sun Feb 01 00:00:00 EST 2009}

}

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