First Measurement of ν_{e} and ν[over ¯]_{e} Charged-Current Single Charged-Pion Production Differential Cross...

Area of Science:

• Particle Physics
• Nuclear Physics
• Experimental Physics

Background:

• Electron neutrino interactions are fundamental to understanding neutrino oscillations and searching for new physics.
• Neutrino-argon interactions are key to interpreting data from experiments like MicroBooNE.
• Precise cross-section measurements are essential for advancing neutrino physics.

Purpose of the Study:

• To present the first measurement of the flux-averaged electron neutrino and antineutrino charged-current single charged-pion production cross section on argon.
• To provide differential cross-section data as a function of various kinematic variables.

Main Methods:

• Utilized the MicroBooNE detector and data from the NuMI neutrino beam.
• Measured the charged-current single charged-pion production cross section for electron neutrinos and antineutrinos.
• Analyzed data to determine total and differential cross sections.

Main Results:

• The total flux-averaged cross section was measured to be (0.93±0.13(stat)±0.27(syst))×10^{-39} cm²/nucleon.
• This measurement was performed at a mean electron neutrino and antineutrino energy of 730 MeV.
• Differential cross sections were reported for electron energy, electron and pion angles, and electron-pion opening angle.

Conclusions:

• This work provides the first cross-section measurement for this specific interaction channel on argon.
• The results are vital for improving theoretical models and experimental analyses in neutrino physics.
• The data will enhance precision in neutrino oscillation measurements and searches for physics beyond the Standard Model.