A study of electron recombination using highly ionizing particles in the ArgoNeuT Liquid Argon TPC

Acciarri, R.; Adams, C.; Asaadi, J.; Baller, B.; Bolton, T.; Bromberg, C.; Cavanna, F.; Church, E.; Edmunds, D.; Ereditato, A.; Farooq, S.; Fleming, B. T.; Greenlee, H.; Horton-Smith, G. A.; James, C.; Klein, E.; Lang, K.; Laurens, P.; McKee, D.; Mehdiyev, R.; Page, B. S.; Palamara, O.; Partyka, K.; Rameika, G.; Rebel, B.; Soderberg, M.; Spitz, J.; Szelc, A. M.; Weber, M.; Wojcik, Mariusz; Yang, T.; Zeller, G. P.

doi:10.1088/1748-0221/8/08/p08005

Cited by 105 publications

(151 citation statements)

References 18 publications

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“…This physical process depends on dE/dx, the amount of energy deposited per unit distance, and the strength of the external electric field. In this analysis we model the effects of recombination according to the treatment and results obtained by the ArgoNeuT experiment [13]. The recombination factor R is defined as…”

Section: Energy Reconstructionmentioning

confidence: 99%

“…dE/dx is the local energy deposition per unit distance and E field the magnitude of the electric field, which is 273 V/cm for MicroBooNE. ArgoNeuT makes use of the Modified Box Model [13] to convert from charge to energy:…”

Section: Energy Reconstructionmentioning

confidence: 99%

“…Recombination factor as a function of dE/dx computed using the Modified Box model as described by ArgoNeuT [13] for the value of the electric field strength in MicroBooNE of 273 V/cm.…”

Section: Figure 12mentioning

confidence: 99%

“…The ArgoNeuT [10] and ICARUS T600 [11] detectors have made a series of measurements useful in addressing questions regarding the ability of LArTPCs to provide precise calorimetric energy reconstruction of EM activity. Studies of recombination [12,13] and electron absorption [14] address the ability to recover information about the energy deposited in the TPC volume. Measurements of γ EM showers produced by π 0 decay [15,16], as well as the calorimetric separation of electron and γ EM showers [17], provide information specific to the reconstruction of EM shower kinematic properties.…”

Section: Introductionmentioning

confidence: 99%

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Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC

Acciarri

Adams

et al. 2017

J. Inst.

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A: The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons. Results are presented on the reconstruction of Michel electrons produced by the decay at rest of cosmic-ray muons. Michel electrons are abundantly produced in the TPC, and given their well known energy spectrum can be used to study MicroBooNE's detector response to low-energy electrons (electrons with energies up to~50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of~14,000 Michel electron candidates is obtained. Most of this article is dedicated to studying the impact of radiative photons produced by Michel electrons on the accuracy and resolution of their energy measurement. In this energy range, ionization and bremsstrahlung photon production contribute similarly to electron energy loss in argon, leading to a complex electron topology in the TPC. By profiling the performance of the reconstruction algorithm on simulation we show that the ability to identify and include energy deposited by radiative photons leads to a significant improvement in the energy measurement of low-energy electrons. The fractional energy resolution we measure improves from over 30% to~20% when we attempt to include radiative photons in the reconstruction. These studies are relevant to a large number of analyses which aim to study neutrinos by measuring electrons produced by ν e interactions over a broad energy range. K: Michel electrons, LArTPC, MicroBooNE

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Section: Energy Reconstructionmentioning

confidence: 99%

Section: Energy Reconstructionmentioning

confidence: 99%

“…Recombination factor as a function of dE/dx computed using the Modified Box model as described by ArgoNeuT [13] for the value of the electric field strength in MicroBooNE of 273 V/cm.…”

Section: Figure 12mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC

Acciarri

Adams

et al. 2017

J. Inst.

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“…Basically there are two theoretical models that can describe the recombination effect in liquid noble gases and consequently the energy and field dependence of the ionization yield of nuclear recoils: that of Thomas-Imel [23,24], applicable mostly at lower energies, and that of Jaffe [25,26], applicable mostly at higher energies. For the ionization yield, the Thomas-Imel and Jaffe models predict the decreasing and increasing function of energy, respectively.…”

Section: Comparison With Theoretical Model and With Other Experimentsmentioning

confidence: 99%

Measurement of the ionization yield of nuclear recoils in liquid argon using a two-phase detector with electroluminescence gap

et al. 2017

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A: A measurement of ionization yields in noble-gas liquids is relevant to the energy calibration of nuclear recoil detectors for dark matter search and coherent neutrino-nucleus scattering experiments. In this work we further study the ionization yield of nuclear recoils in liquid Ar, using a two-phase detector with an electroluminescence gap and DD neutron generator. The ionization yields of nuclear recoils in liquid Ar were measured at 233 keV and electric fields of 0.56 and 0.62 kV/cm; their values amounted to 5.9 ± 0.8 and 7.4 ± 1 e − /keV, respectively. The characteristic dependences of the ionization yield on energy and electric field were determined, while comparing the results obtained to those at lower energies and higher fields.

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Methods for the Simulation of the Slowing of Low‐Energy Electrons in Water

2018

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A computational Monte Carlo simulation approach for modeling the thermalization of low-energy electrons is presented. The simulation methods rely on, and use, experimentally based cross sections for elastic and inelastic collisions. To demonstrate the different simulation options, average numbers of interactions and the range of low-energy electrons with initial energies ranging from 1 to 20 eV are calculated for density normalized gaseous water. Experimental gas-phase cross sections for (subexcitation) electrons of energies in the range of 1-20 eV were taken from the compilation of Hayashi. The ballistic collision-by-collision simulations provide information on the intricacies of the thermalization processes not available experimentally.

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A study of electron recombination using highly ionizing particles in the ArgoNeuT Liquid Argon TPC

Cited by 105 publications

References 18 publications

Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC

Michel electron reconstruction using cosmic-ray data from the MicroBooNE LArTPC

Measurement of the ionization yield of nuclear recoils in liquid argon using a two-phase detector with electroluminescence gap

Methods for the Simulation of the Slowing of Low‐Energy Electrons in Water

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