Search for Antineutrino Charged Current Coherent Pion Production at SciBooNE

TL;DR

This paper reports a preliminary search for antineutrino charged current coherent pion production at SciBooNE, motivated by models predicting production rates near previous upper limits, aiming to improve understanding of neutrino interactions.

Contribution

It presents the first antineutrino-based search for charged current coherent pion production at SciBooNE, extending previous neutrino studies and testing new theoretical models.

Findings

No evidence for coherent pion production observed.

Set 90% confidence level upper limits on cross section ratio.

Results suggest models predicting near-threshold production remain plausible.

Abstract

The SciBooNE experiment (Fermilab) recently published results of a search for charged current coherent pion production in neutrino mode: muon neutrinos scattering on carbon. The results of this study are that no evidence for coherent pion production is observed, and SciBooNE set 90% confidence level upper limits on the cross section ratio of charged current coherent pion production to the total charged current cross section. Recently proposed new coherent pion models predict a production of charged current coherent pion events just below the SciBooNE's upper limit. Motivated by this, we performed a search for charged current coherent pion production using SciBooNE's collected antineutrino data since antineutrino data are expected to be more sensitive to look at coherent pion production than neutrino data. This paper describes preliminary results of a search for antineutrino charged current coherent pion production at the SciBooNE experiment.