A. M. Szelc
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View article: Measurement of the Liquid Argon Scintillation Pulse Shape Using Differentiable Simulation in the Coherent CAPTAIN-Mills Experiment
Measurement of the Liquid Argon Scintillation Pulse Shape Using Differentiable Simulation in the Coherent CAPTAIN-Mills Experiment Open
The Coherent CAPTAIN-Mills (CCM) experiment is a liquid argon (LAr) light collection detector searching for MeV-scale neutrino and Beyond Standard Model physics signatures. Two hundred 8-inch photomultiplier tubes (PMTs) instrument the 7 t…
View article: First Event-by-Event Identification of Cherenkov Radiation from Sub-MeV Particles in Liquid Argon
First Event-by-Event Identification of Cherenkov Radiation from Sub-MeV Particles in Liquid Argon Open
This Letter reports the event-by-event observation of Cherenkov light from sub-MeV electrons in a high scintillation light-yield liquid argon (LAr) detector by the Coherent CAPTAIN-Mills (CCM) experiment. The CCM200 detector, located at Lo…
View article: First observation of antiproton annihilation at rest on argon in the LArIAT experiment
First observation of antiproton annihilation at rest on argon in the LArIAT experiment Open
We report the first observation and measurement of antiproton annihilation at rest on argon track and shower multiplicities and particle identification conducted with the LArIAT experiment. Stopping antiprotons from the Fermilab Test Beam …
View article: Demonstration of the light collection stability of a PEN-based wavelength shifting reflector in a tonne scale liquid argon detector
Demonstration of the light collection stability of a PEN-based wavelength shifting reflector in a tonne scale liquid argon detector Open
Liquid argon detectors rely on wavelength shifters for efficient detection of scintillation light. The current standard is tetraphenyl butadiene (TPB), but it is challenging to instrument on a large scale. Poly(ethylene 2,6-naphthalate) (P…
View article: Measurements of Pion and Muon Nuclear Capture at Rest on Argon in the LArIAT Experiment
Measurements of Pion and Muon Nuclear Capture at Rest on Argon in the LArIAT Experiment Open
We report the measurement of the final-state products of negative pion and muon nuclear capture at rest on argon by the LArIAT experiment at the Fermilab Test Beam Facility. We measure a population of isolated MeV-scale energy depositions,…
View article: Addendum to “Testing meson portal dark sector solutions to the MiniBooNE anomaly at CCM”
Addendum to “Testing meson portal dark sector solutions to the MiniBooNE anomaly at CCM” Open
In Aguilar-Arevalo [], we explored various effective field theories that could explain the MiniBooNE excess involving long-lived particles produced from charged meson decays and the sensitivity of the Coherent CAPTAIN Mills experiment to t…
View article: Demonstration of the light collection stability of a PEN-based wavelength shifting reflector in a tonne scale liquid argon detector
Demonstration of the light collection stability of a PEN-based wavelength shifting reflector in a tonne scale liquid argon detector Open
Liquid argon detectors rely on wavelength shifters for efficient detection of scintillation light. The current standard is tetraphenyl butadiene (TPB), but it is challenging to instrument on a large scale. Poly(ethylene 2,6-naphthalate) (P…
View article: Measurements of Pion and Muon Nuclear Capture at Rest on Argon in the LArIAT Experiment
Measurements of Pion and Muon Nuclear Capture at Rest on Argon in the LArIAT Experiment Open
We report the measurement of the final-state products of negative pion and muon nuclear capture at rest on argon by the LArIAT experiment at the Fermilab Test Beam Facility. We measure a population of isolated MeV-scale energy depositions,…
View article: First Demonstration of a Combined Light and Charge Pixel Readout on the Anode Plane of a LArTPC
First Demonstration of a Combined Light and Charge Pixel Readout on the Anode Plane of a LArTPC Open
The novel SoLAr concept aims to extend sensitivities of liquid-argon neutrino detectors down to the MeV scale for next-generation detectors. SoLAr plans to accomplish this with a liquid-argon time projection chamber that employs an anode p…
View article: Testing meson portal dark sector solutions to the MiniBooNE anomaly at the Coherent CAPTAIN Mills experiment
Testing meson portal dark sector solutions to the MiniBooNE anomaly at the Coherent CAPTAIN Mills experiment Open
A solution to the MiniBooNE excess invoking rare three-body decays of the charged pions and kaons to new states in the MeV mass scale was recently proposed as a dark-sector explanation. This class of solution illuminates the fact that, whi…
View article: Testing Meson Portal Dark Sector Solutions to the MiniBooNE Anomaly at CCM
Testing Meson Portal Dark Sector Solutions to the MiniBooNE Anomaly at CCM Open
A solution to the MiniBooNE excess invoking rare three-body decays of the charged pions and kaons to new states in the MeV mass scale was recently proposed as a dark-sector explanation. This class of solution illuminates the fact that, whi…
View article: First Constraints on Heavy QCD Axions with a Liquid Argon Time Projection Chamber Using the ArgoNeuT Experiment
First Constraints on Heavy QCD Axions with a Liquid Argon Time Projection Chamber Using the ArgoNeuT Experiment Open
We present the results of a search for heavy QCD axions performed by the ArgoNeuT experiment at Fermilab. We search for heavy axions produced in the NuMI neutrino beam target and absorber decaying into dimuon pairs, which can be identified…
View article: Prospects for detecting axionlike particles at the Coherent CAPTAIN-Mills experiment
Prospects for detecting axionlike particles at the Coherent CAPTAIN-Mills experiment Open
We show results from the Coherent CAPTAIN Mills (CCM) 2019 engineering run which begin to constrain regions of parameter space for axionlike particles (ALPs) produced in electromagnetic particle showers in an 800 MeV proton beam dump, and …
View article: Study of Light Production With A Fifty Liter Liquid Argon TPC
Study of Light Production With A Fifty Liter Liquid Argon TPC Open
The Deep Underground Neutrino Experiment (DUNE) is the next very large scale neutrino science and proton decay experiment. DUNE will consist of large-scale near and far detectors. The core elements of these detector systems are liquid argo…
View article: First Constraints on Heavy QCD Axions with a Liquid Argon Time Projection Chamber using the ArgoNeuT Experiment
First Constraints on Heavy QCD Axions with a Liquid Argon Time Projection Chamber using the ArgoNeuT Experiment Open
We present the results of a search for heavy QCD axions performed by the ArgoNeuT experiment at Fermilab. We search for heavy axions produced in the NuMI neutrino beam target and absorber decaying into dimuon pairs, which can be identified…
View article: First dark matter search results from Coherent CAPTAIN-Mills
First dark matter search results from Coherent CAPTAIN-Mills Open
This paper describes the operation of the Coherent CAPTAIN-Mills (CCM) detector located at the Los Alamos Neutron Science Center at Los Alamos National Laboratory. CCM is a 10-ton liquid argon detector located 20 meters from a high flux ne…
View article: First Leptophobic Dark Matter Search from the Coherent–CAPTAIN-Mills Liquid Argon Detector
First Leptophobic Dark Matter Search from the Coherent–CAPTAIN-Mills Liquid Argon Detector Open
We report the first results of a search for leptophobic dark matter (DM) from the Coherent-CAPTAIN-Mills (CCM) liquid argon (LAr) detector. An engineering run with 120 photomultiplier tubes (PMTs) and 17.9×10^{20} protons on target (POT) w…
View article: A deep-learning based raw waveform region-of-interest finder for the liquid argon time projection chamber
A deep-learning based raw waveform region-of-interest finder for the liquid argon time projection chamber Open
The liquid argon time projection chamber (LArTPC) detector technology has an excellent capability to measure properties of low-energy neutrinos produced by the sun and supernovae and to look for exotic physics at very low energies. In orde…
View article: Prospects for detecting axionlike particles at the Coherent CAPTAIN-Mills experiment
Prospects for detecting axionlike particles at the Coherent CAPTAIN-Mills experiment Open
We show results from the Coherent CAPTAIN Mills (CCM) 2019 engineering run which begin to constrain regions of parameter space for axion-like particles (ALPs) produced in electromagnetic particle showers in an 800 MeV proton beam dump, and…
View article: Direct comparison of PEN and TPB wavelength shifters in a liquid argon detector
Direct comparison of PEN and TPB wavelength shifters in a liquid argon detector Open
A large number of particle detectors employ liquid argon as their target material owing to its high scintillation yield and its ability to drift ionization charge over large distances. Scintillation light from argon is peaked at 128 nm and…
View article: First Leptophobic Dark Matter Search from Coherent CAPTAIN-Mills
First Leptophobic Dark Matter Search from Coherent CAPTAIN-Mills Open
We report the first results of a search for leptophobic dark matter (DM) from the Coherent CAPTAIN-Mills (CCM) liquid argon (LAr) detector. An engineering run with 120 photomultiplier tubes (PMTs) and $17.9 \times 10^{20}$ protons-on-targe…
View article: Measurement of the ($\pi^-$, Ar) total hadronic cross section at the LArIAT experiment
Measurement of the ($\pi^-$, Ar) total hadronic cross section at the LArIAT experiment Open
We present the first measurement of the negative pion total hadronic cross section on argon, which we performed at the Liquid Argon In A Testbeam (LArIAT) experiment. All hadronic reaction channels, as well as hadronic elastic interactions…
View article: Wavelength-shifting performance of polyethylene naphthalate films in a liquid argon environment
Wavelength-shifting performance of polyethylene naphthalate films in a liquid argon environment Open
Liquid argon is commonly used as a detector medium for neutrino physics and dark matter experiments in part due to its copious scintillation light production in response to its excitation and ionization by charged particle interactions. As…
View article: First measurement of electron neutrino scattering cross section on argon
First measurement of electron neutrino scattering cross section on argon Open
We report the first electron neutrino cross section measurements on argon, based on data collected by the ArgoNeuT experiment running in the GeV-scale NuMI beamline at Fermilab. A flux-averaged $\\nu_e + \\overline{\\nu}_e$ total and a lep…
View article: Improved Limits on Millicharged Particles Using the ArgoNeuT Experiment at Fermilab
Improved Limits on Millicharged Particles Using the ArgoNeuT Experiment at Fermilab Open
A search for millicharged particles, a simple extension of the standard model, has been performed with the ArgoNeuT detector exposed to the Neutrinos at the Main Injector beam at Fermilab. The ArgoNeuT liquid argon time projection chamber …
View article: Calibration of the Charge and Energy Response of the MicroBooNE Liquid Argon Time Projection Chamber using Muons and Protons
Calibration of the Charge and Energy Response of the MicroBooNE Liquid Argon Time Projection Chamber using Muons and Protons Open
We describe a method used to calibrate the position- and time-dependent response of the MicroBooNE liquid argon time projection chamber anode wires to ionization particle energy loss. The method makes use of crossing cosmic-ray muons to pa…
View article: Calorimetry for low-energy electrons using charge and light in liquid argon
Calorimetry for low-energy electrons using charge and light in liquid argon Open
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…
View article: Demonstration of MeV-scale physics in liquid argon time projection chambers using ArgoNeuT
Demonstration of MeV-scale physics in liquid argon time projection chambers using ArgoNeuT Open
MeV-scale energy depositions by low-energy photons produced in neutrino-argon interactions have been identified and reconstructed in ArgoNeuT liquid argon time projection chamber (LArTPC) data. ArgoNeuT data collected on the NuMI beam at F…