Foreman, W;
Acciarri, R;
Asaadi, JA;
Badgett, W;
Blaszczyk, FDM;
Bouabid, R;
Bromberg, C;
... Zhang, S; + view all
(2020)
Calorimetry for low-energy electrons using charge and light in liquid argon.
Physical Review D
, 101
(1)
, Article 012010. 10.1103/PhysRevD.101.012010.
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Abstract
Precise calorimetric reconstruction of 5–50 MeV electrons in liquid argon time projection chambers (LArTPCs) will enable the study of astrophysical neutrinos in DUNE and could enhance the physics reach of oscillation analyses. Liquid argon scintillation light has the potential to improve energy reconstruction for low-energy electrons over charge-based measurements alone. Here we demonstrate light-augmented calorimetry for low-energy electrons in a single-phase LArTPC using a sample of Michel electrons from decays of stopping cosmic muons in the LArIAT experiment at Fermilab. Michel electron energy spectra are reconstructed using both a traditional charge-based approach as well as a more holistic approach that incorporates both charge and light. A maximum-likelihood fitter, using LArIAT’s well-tuned simulation, is developed for combining these quantities to achieve optimal energy resolution. A sample of isolated electrons is simulated to better determine the energy resolution expected for astrophysical electron-neutrino charged-current interaction final states. In LArIAT, which has very low wire noise and an average light
| Type: | Article |
|---|---|
| Title: | Calorimetry for low-energy electrons using charge and light in liquid argon |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.101.012010 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.101.012010 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10092310 |
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