A5022054486- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Quantum Chromodynamics and Particle Interactions
- Nuclear Physics and Applications
- Nuclear Issues and Defense
- High-Energy Particle Collisions Research
- Medical Imaging and Pathology Studies
- Radiation Detection and Scintillator Technologies
- Nuclear reactor physics and engineering
- Magnetic confinement fusion research
Columbia University
2020-2025
Los Alamos National Laboratory
2023
This paper describes the operation of Coherent CAPTAIN-Mills (CCM) detector located at Los Alamos Neutron Science Center National Laboratory. CCM is a 10-ton liquid argon 20 meters from high flux neutron/neutrino source and designed to search for sterile neutrinos (${\ensuremath{\nu}}_{s}$'s) light dark matter (LDM). An engineering run was performed in fall 2019 study characteristics CCM120 by searching coherent scattering signals consistent with ${\ensuremath{\nu}}_{s}$'s LDM resulting...
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 sensitivity of Coherent CAPTAIN Mills experiment to these models. this addendum, extend analysis project upcoming MicroBooNE data particle models considered in previous work. We find a dedicated single photon final state with longer exposure improved signal efficiency will be sensitive new physics explanations...
We report the first results of a search for leptophobic dark matter (DM) from 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) was performed in fall 2019 to study characteristics CCM The operation this 10-ton detector strictly light based threshold 50 keV used coherent elastic scattering off nuclei detect DM. Despite only 1.5 months accumulated luminosity, contaminated LAr, nonoptimized...
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 an 800 MeV proton beam dump, and further investigate sensitivity ongoing data-taking campaigns CCM200 upgraded detector. Based on beam-on background estimates run, we make realistic extrapolations reduction based expected shielding improvements, reduced width, analysis-based techniques...
A solution to the MiniBooNE excess invoking rare three-body decays of charged pions and kaons new states in MeV mass scale was recently proposed as a dark-sector explanation. This class illuminates fact that, while were focused target-mode run, their decay products isotropically suppressed beam-dump-mode run which no observed. suggests physics correlated mesonic sector. We investigate an extended set phenomenological models that can explain dark sector solution, utilizing long-lived...
The IsoDAR sterile-neutrino search requires a very high intensity neutrino source. For IsoDAR, this is produced using the neutron flux from 60 MeV, 10 mA proton beam striking beryllium target that floods sleeve of highly-enriched Li-7. Through capture Li-7 transmuted to Li-8, which beta-decays giving desired for very-short baseline experiments. can be placed close existing large detector, typically located deep underground reduce backgrounds. With such setup, it necessary design shielding...
There is a growing realization that neutrinos can be used as diagnostic tool to better understand the inner workings of nuclear weapon. Robust estimates demonstrate an Inverse Beta Decay (IBD) neutrino scintillation detector built at Nevada Test Site 1000-ton active target mass standoff distance 500 m would detect thousands events per kTe yield. This provide less than 4% statistical error on measured rate and 5% energy. Extrapolating this test device explosive yield requires knowledge from...
A solution to the MiniBooNE excess invoking rare three-body decays of charged pions and kaons new states in MeV mass scale was recently proposed as a dark-sector explanation. This class illuminates fact that, while were focused target-mode run, their decay products isotropically suppressed beam-dump-mode run which no observed. suggests physics correlated mesonic sector. We investigate an extended set phenomenological models that can explain dark sector solution, utilizing long-lived...
The IsoDAR sterile-neutrino search requires a very high intensity neutrino source. For IsoDAR, this is produced using the neutron flux from 60 MeV, 10 mA proton beam striking beryllium target that floods sleeve of highly-enriched Li-7. Through capture Li-7 transmuted to Li-8, which beta-decays giving desired for very-short baseline experiments. can be placed close existing large detector, typically located deep underground reduce backgrounds. With such setup, it necessary design shielding...