@misc{10481/76510,
year = {2022},
month = {6},
url = {http://hdl.handle.net/10481/76510},
abstract = {This article presents a measurement of νe interactions without pions in the final state using the
MicroBooNE experiment and an investigation into the excess of low-energy electromagnetic events
observed by the MiniBooNE Collaboration. The measurement is performed in exclusive channels with
(1eNp0π) and without (1e0p0π) visible final-state protons using 6.86 × 1020 protons on target of data
collected from the Booster Neutrino Beam at Fermilab. Events are reconstructed with the Pandora pattern
recognition toolkit and selected using additional topological information from the MicroBooNE liquid
argon time projection chamber. Using a goodness-of-fit test, the data are found to be consistent with the
predicted number of events with nominal flux and interaction models with a p value of 0.098 in the two
channels combined. A model based on the low-energy excess observed in MiniBooNE is introduced to
quantify the strength of a possible νe excess. The analysis suggests that, if an excess is present, it is not
consistent with a scaling of the νe contribution to the flux as predicted by the signal model used in the
analysis. Combined, the 1eNp0π and 1e0p0π channels do not give a conclusive indication about the tested
model, but separately, they both disfavor the low-energy excess model at > 90% C:L: The observation in
the most sensitive 1eNp0π channel is below the prediction and consistent with no excess. In the less
sensitive 1e0p0π channel, the observation at low energy is above the prediction, while overall there is
agreement over the full energy spectrum.},
organization = {Fermi Research Alliance, LLC (FRA)	DE-AC02-07CH11359},
organization = {United States Department of Energy (DOE)},
organization = {National Science Foundation (NSF)},
organization = {Swiss National Science Foundation (SNSF)},
organization = {European Commission},
organization = {UK Research & Innovation (UKRI)},
organization = {Science & Technology Facilities Council (STFC)},
organization = {Science and Technology Development Fund (STDF)},
organization = {United Kingdom Research and Innovation},
organization = {Royal Society of London},
organization = {European Commission},
publisher = {American Physical Society},
title = {Search for an anomalous excess of charged-current νe interactions without pions in the final state with the MicroBooNE experiment},
doi = {10.1103/PhysRevD.105.112004},
author = {Abratenko, P. and García Gámez, Diego and MicroBooNE Collaboration},
}