Calorimetry for low-energy electrons using charge and light in liquid argon

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dc.creatorForeman, William
dc.creatorAcciarri, Roberto
dc.creatorAsaadi, Jonathan
dc.creatorBadgett, William
dc.creatorBlaszczyk, F. d. M.
dc.creatorBouabid, R.
dc.creatorBromberg, Carl
dc.creatorCarey, Robert M.
dc.creatorCavanna, Flavio
dc.creatorCevallos Aleman, Jose ignacio
dc.creatorGomes, Ricardo Avelino
dc.date.accessioned2023-05-18T11:59:50Z
dc.date.available2023-05-18T11:59:50Z
dc.date.issued2020
dc.description.abstractPrecise 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 yield of 18 pe=MeV, an energy resolution of σ=E ≃ 9.3%= ffiffiffiffi E p ⊕ 1.3% is achieved. Samples are then generated with varying wire noise levels and light yields to gauge the impact of light-augmented calorimetry in larger LArTPCs. At a charge-readout signal-to-noise of S=N ≃ 30, for example, the energy resolution for electrons below 40 MeV is improved by ≈10%, ≈20%, and ≈40% over charge-only calorimetry for average light yields of 10 pe=MeV, 20 pe=MeV, and 100 pe=MeV, respectively.pt_BR
dc.identifier.citationFOREMAN, W. et al. Calorimetry for low-energy electrons using charge and light in liquid argon. Physical Review D, Washington, v. 101, n. 1, e012010, 2020. DOI: 10.1103/PhysRevD.101.012010. Disponível em: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.101.012010. Acesso em: 16 maio 2023.pt_BR
dc.identifier.doi10.1103/PhysRevD.101.012010
dc.identifier.issne- 2470-0029
dc.identifier.issn2470-0010
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/22552
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Física - IF (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleCalorimetry for low-energy electrons using charge and light in liquid argonpt_BR
dc.typeArtigopt_BR

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