A5017987000- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Radiation Therapy and Dosimetry
- Radiation Detection and Scintillator Technologies
- Particle physics theoretical and experimental studies
- Neutrino Physics Research
Northwestern University
2021-2024
The physics reach of a low threshold (100 eV) scintillating argon bubble chamber sensitive to Coherent Elastic neutrino-Nucleus Scattering (CE$\nu$NS) from reactor neutrinos is studied. sensitivity the weak mixing angle, neutrino magnetic moment, and light $Z'$ gauge boson mediator are analyzed. A Monte Carlo simulation backgrounds performed assess their contribution signal. analysis shows that world-leading sensitivities achieved with one-year exposure for 10 kg at 3 m 1 MW$_{th}$ research...
The Scintillating Bubble Chamber (SBC) collaboration is developing liquid-noble bubble chambers for the detection of sub-keV nuclear recoils. These detectors benefit from electron recoil rejection inherent in moderately-superheated with addition energy reconstruction provided scintillation signal. ability to measure low-energy recoils allows search GeV-scale dark matter and measurement coherent elastic neutrino-nucleus scattering on argon MeV-scale reactor antineutrinos. first physics-scale...
The Scintillating Bubble Chamber (SBC) Collaboration is developing liquid-noble bubble chambers for the quasi-background-free detection of low-mass (GeV-scale) dark matter and coherent scattering low-energy (MeV-scale) neutrinos (CE$\nu$NS). first physics-scale demonstrator this technique, a 10-kg liquid argon chamber dubbed SBC-LAr10, now being commissioned at Fermilab. This device will calibrate background discrimination power sensitivity superheated to nuclear recoils energies down 100...
The Scintillating Bubble Chamber (SBC) collaboration purchased 32 Hamamatsu VUV4 silicon photomultipliers (SiPMs) for use in SBC-LAr10, a bubble chamber containing 10~kg of liquid argon. A dark-count characterization technique, which avoids the single-photon source, was used at two temperatures to measure SiPMs breakdown voltage ($V_{\text{BD}}$), SiPM gain ($g_{\text{SiPM}}$), rate change $g_{\text{SiPM}}$ with respect ($m$), dark count (DCR), and probability correlated avalanche...
A device filled with pure xenon first demonstrated the ability to operate simultaneously as a bubble chamber and scintillation detector in 2017. Initial results from data taken at thermodynamic thresholds down ~4 keV showed sensitivity ~20 nuclear recoils no observable nucleation by $\gamma$-ray interactions. This paper presents further operation of same low 0.50 keV, hardware limited. The has now been shown have ~1 while remaining insensitive $\gamma$-rays. robust calibration chamber's...