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Related Experiment Video

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Setting Limits on Supersymmetry Using Simplified Models

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Published on: November 15, 2013

Electroweak nuclear response in the quasielastic regime.

Omar Benhar¹, Pietro Coletti, Davide Meloni

¹INFN, Sezione di Roma, I-00185 Roma, Italy.

Physical Review Letters

|January 15, 2011

Summary

Comparing electron and neutrino scattering on carbon targets reveals discrepancies in nuclear effects. Current theoretical models, using deuterium-derived nucleon axial mass, fail to consistently describe both electron and neutrino cross sections, necessitating a new approach for neutrino scattering analysis.

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Area of Science:

Nuclear Physics
Particle Physics
High Energy Physics

Background:

MiniBooNE Collaboration provides double-differential charged-current neutrino cross section data using a carbon target.
This data enables systematic comparison of nuclear effects in quasielastic electron and neutrino scattering.

Purpose of the Study:

To compare nuclear effects in quasielastic electron and neutrino scattering.
To investigate the consistency of theoretical models across different scattering types and targets.
To identify limitations in current theoretical frameworks for neutrino-nucleus interactions.

Main Methods:

Utilized an impulse approximation scheme.
Employed a state-of-the-art model of nuclear spectral functions.
Analyzed assumptions in electron-scattering data treatment.

Main Results:

Electron and neutrino cross sections on carbon, under comparable conditions, cannot be described by the same theoretical approach with deuterium-derived nucleon axial mass.
Discrepancies suggest nuclear effects are not consistently modeled across electron and neutrino scattering.

Conclusions:

Current theoretical models are insufficient for describing neutrino scattering data when lepton kinematics are not fully determined.
A new theoretical paradigm is required for accurate analysis of neutrino-nucleus interactions.
Further investigation into nuclear effects in quasielastic scattering is warranted.