M. Chavez-Estrada

First Event-by-Event Identification of Cherenkov Radiation from Sub-Mev Particles in Liquid Argon

A. A. Aguilar-Arevalo, Sandra Biedron, J. Boissevain, M. Borrego et autres

This Letter reports the event-by-event observation of Cherenkov light from sub-MeV electrons in a high scintillation light-yield liquid argon detector by the coherent CAPTAIN-Mills (CCM) experiment. The CCM200 detector, located at Los Alamos National Laboratory, instruments seven tons (fiducial volume) of liquid …

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Measurement of the liquid argon scintillation pulse shape using differentiable simulation in the coherent CAPTAIN-Mills experiment

A. A. Aguilar-Arevalo, Sandra Biedron, J. Boissevain, M. Borrego et autres

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 eight-inch photomultiplier tubes instrument the seven-ton fiducial volume with 50% photocathode coverage to detect light produced by …

mx, us, gb (code pays fourni par la source)

Measurement of the Liquid Argon Scintillation Pulse Shape Using Differentiable Simulation in the Coherent CAPTAIN-Mills Experiment

A. A. Aguilar-Arevalo, Sandra Biedron, J. Boissevain, M. Borrego et autres

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 ton fiducial volume with 50% photocathode coverage to detect light …

First Event-by-Event Identification of Cherenkov Radiation from Sub-MeV Particles in Liquid Argon

A. A. Aguilar-Arevalo, Sandra Biedron, J. Boissevain, M. Borrego et autres

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 Los Alamos National Laboratory, instruments 7 tons (fiducial volume) of …

Testing meson portal dark sector solutions to the MiniBooNE anomaly at the Coherent CAPTAIN Mills experiment

A. A. Aguilar-Arevalo, Sandra Biedron, J. Boissevain, M. Borrego et autres

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, while the charged …

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Testing Meson Portal Dark Sector Solutions to the MiniBooNE Anomaly at CCM

A. A. Aguilar-Arevalo, Sandra Biedron, J. Boissevain, M. Borrego et autres

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, while the charged …

Prospects for detecting axionlike particles at the Coherent CAPTAIN-Mills experiment

A. A. Aguilar-Arevalo, Daniele S. M. Alves, Sandra Biedron, J. Boissevain et autres

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 further investigate the sensitivity of …

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First dark matter search results from Coherent CAPTAIN-Mills

A. A. Aguilar-Arevalo, Daniele S. M. Alves, Sandra Biedron, J. Boissevain et autres

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 neutron/neutrino source and is …

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First Leptophobic Dark Matter Search from the Coherent–CAPTAIN-Mills Liquid Argon Detector

A. A. Aguilar-Arevalo, Daniele S. M. Alves, Sandra Biedron, J. Boissevain et autres

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) was performed in fall 2019 to study …

mx, us, gb (code pays fourni par la source)

First Leptophobic Dark Matter Search from Coherent CAPTAIN-Mills

A. A. Aguilar-Arevalo, Daniele S. M. Alves, Sandra Biedron, J. Boissevain et autres

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-target (POT) was performed in Fall 2019 to …

Potential of CCDs for the study of sterile neutrino oscillations via Coherent Neutrino-Nucleus Elastic Scattering

M. Chavez-Estrada, A. A. Aguilar-Arevalo

We study the potential of a detector based on CCD sensors (CONNIE experiment) to study neutrino oscillations to sterile states using reactor neutrinos. We calculate the number of events expected in a 1 kg detector and determine the sensitivity to oscillations ν …

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