@misc{10481/71134,
year = {2021},
month = {9},
url = {http://hdl.handle.net/10481/71134},
abstract = {Accurate knowledge of electron transport properties is vital to understanding the information provided by liquid argon time projection chambers (LArTPCs). Ionization electron drift-lifetime, local electric field distortions caused by positive ion accumulation, and electron diffusion can all significantly impact the measured signal waveforms. This paper presents a measurement of the effective longitudinal electron diffusion coefficient, D-L, in MicroBooNE at the nominal electric field strength of 273.9 V/cm. Historically, this measurement has been made in LArTPC prototype detectors. This represents the first measurement in a large-scale (85 tonne active volume) LArTPC operating in a neutrino beam. This is the largest dataset ever used for this measurement. Using a sample of similar to 70,000 through-going cosmic ray muon tracks tagged with MicroBooNE's cosmic ray tagger system, we measure D-L = 3.74(-0.29)(+0.28) cm(2)/s.},
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 = {Science and Technology Facilities Council (STFC), part of the United Kingdom Research and Innovation},
organization = {Royal Society of London},
organization = {Albert Einstein Center for Fundamental Physics, Bern, Switzerland},
publisher = {Institute of Physics Publishing},
keywords = {Charge transport and multiplication in liquid media},
keywords = {Noble liquid detectors (scintillation, ionization, double-phase)},
keywords = {Time projection Chambers (TPC)},
title = {Measurement of the longitudinal diffusion of ionization electrons in the MicroBooNE detector},
doi = {10.1088/1748-0221/16/09/P09025},
author = {Abratenko, P. and García Gámez, Diego and MicroBooNE Collaboration},
}