Mathematical methods for neutrino crosssection extraction
Abstract
Precise modeling of neutrinonucleus scattering is becoming increasingly important as acceleratorbased oscillation experiments seek definitive answers to open questions about neutrino properties. To guide the needed model refinements, a growing number of experimental collaborations are pursuing a wideranging program of neutrino interaction measurements at GeV energies. A key step in most such analyses is crosssection extraction, in which measured event counts are corrected for background contamination and imperfect detector performance to yield crosssection results that are directly comparable to theoretical predictions. In this paper, I review the major approaches to crosssection extraction in the literature using representative examples from the MINERvA, MicroBooNE, and T2K experiments. I then present two mathematical techniques, blockwise unfolding and the conditional covariance background constraint, which overcome some limitations of typical crosssection extraction procedures.
 Publication:

arXiv eprints
 Pub Date:
 January 2024
 DOI:
 10.48550/arXiv.2401.04065
 arXiv:
 arXiv:2401.04065
 Bibcode:
 2024arXiv240104065G
 Keywords:

 High Energy Physics  Experiment;
 Physics  Data Analysis;
 Statistics and Probability
 EPrint:
 25 pages, 1 figure