ArgoNeuT is a 170 liter liquid argon time projection chamber designed to collect neutrino interactions from the NuMI beam at Fermi National Accelerator Laboratory. ArgoNeuT operated in the NuMI low-energy beam line directly upstream of the MINOS Near Detector from September 2009 to February 2010, during which thousands of neutrino and anti-neutrino events were collected. ArgoNeuT was the first LArTPC operating in a low energy neutrino and antineutrino beam, the region of interest for current short-baseline and future long-baseline experiments. Its primary goal was to serve as technology demonstrator, but indeed ArgoNeuT has provided a wealth of physics results on neutrino interaction mechanisms, and is still yielding new intriguing outputs from the on-going studies. The Yale team played a leading role in project and the group is currently working on some analyses, such as studies of electron gamma separation, measurement of the electron neutrino charge current inclusive cross section and studies of nuclear effects in neutrino-nucleus interaction in LAr-TPCs. (click on image to enlarge)
The Yale Beam Physics Lab carries out theoretical and experimental programs on novel means of high gradient particle acceleration, including a detuned-cavity collinear two-beam accelerator and a multi-harmonic cavity accelerator structures. RF breakdown suppression phenomena in multi-harmonic cavities are also studied. For experiments on these and related topics, we are currently building test facilities for studying high-current beam driven acceleration, multi-band RF driven accelerator structures, and a high-power rf source for tests relevant to the future International Linear Collider ILC. We are also applying techniques of beam physics to develop a novel energy/momentum spectrometer for electrons near the end-point of tritium beta decay for a neutrino mass measurement, and for electrons from neutrino-less double beta decay.
COSINE-100 is a dark matter experiment currently running at the Yangyang Underground Laboratory (Y2L) in South Korea. The first phase of the experiment deployed 106 kg of NaI(Tl) crystals and we have started taking data in Fall 2016, with an aim to unambiguously test DAMA Collaboration’s claim that they have made a direct detection of dark matter with their NaI (Tl) detectors.
Cryogenic Underground Observatory for Rare Events (CUORE)
CUORE is a tightly packed array of 988 TeO2 bolometers operated at 10 mK to search for neutrinoless double beta decay and to measure the mass of the neutrino. Neutrinoless double beta decay is a yet unobserved process. It can only occur if neutrinos are their own antiparticles. The Cryogenic Underground Observabory for Rare Events is located in the Gran Sasso National Underground Laboratory in Italy. The main goal of the experiment is to search for neutrinoless double beta decay in 130Te. With CUORE, we can also look for dark matter and other rare, low-energy event. Our group is developing a novel calibration system for the energy calibration of individual bolometers with radioactive sources at 10 mK and involved the analysis of data from CUORE-0 and CUORE. (click on image to enlarge)
The Daya Bay reactor neutrino experiment is a US-China-Russia collaboration to search for and measure the yet unknown neutrino mixing angle theta13. The experiment is located at the Daya Bay nuclear power plant near Hong Kong, China. Data taking will start in Spring 2011. Our group has overall responsibility in the US for the design and construction of the antineutrino detectors. Together with the University of Wisconsin Physical Sciences Laboratory we oversaw the assembly and installation of the antineutrino detectors at Daya Bay. Our group is now involved in the oscillation analysis and in the measurement of the reactor flux and spectrum. (click on image to enlarge)
DM-Ice is searching for dark matter in the southern hemisphere. The goal is to perform a search for dark matter using the time variation resulting from the motion of the detector relative to the dark matter halo as a signature. Currently we have 17 kg of NaI detector in operation in the South Pole ice just below the IceCube Neutrino Observatory, and 37 kg prototype detectors at the Boulby Underground Laboratory in the UK.
EXO is searching for the neutrinoless double beta decay of 136Xe using large liquid xenon time projection chambers. The current experiment, EXO-200, is operating at the WIPP facility in Carlsbad, NM. The Yale group is working on both analysis of EXO-200 data as well as R&D for the next-generation, multi-ton nEXO experiment.
Haloscope At Yale Sensitive To Axion CDM (HAYSTAC)
Haloscope At Yale Sensitive To Axion CDM (HAYSTAC) is searching for dark-matter axions by their resonant conversion to photons in a high-Q microwave cavity embedded in a strong magnetic fiel.; HAYSTAC is designed to be both a pathfinder for first data in the 4-10 GHz (20-100 microelectronvolt) range, and an innovation test-bed for new concepts with promise to dramatically increase the sensitivity, mass range and scanning rate. Consisting of a 9T superconducting magnet, a dilution refrigerator and a quantum-limited receiver based on Josephson Parametric Amplifiers (JPA), HAYSTAC is projected to achieve sensitivity within the axion model band. HAYSTAC is now being commissioned at Yale. HAYSTAC is a collaboration of Yale, JILA/Colorado, UC Berkeley and LLNL, and by agreement will create a unified data set with HAYSTAC. (click on image to enlarge)