Speaker: Michelle Galloway (University of Zurich) Title: Observation of excess electronic recoil events in XENON1T Abstract: A search for new physics with XENON1T revealed an excess of electronic recoil events in the (1 - 7) keV region, favoring signal over background with significances of 3.5 sigma for solar axions/ALPs, 3.2 sigma for an enhanced neutrino […]

Speaker: Hao Chen (Texas A&M University) Title: Two New Cryogenic Detector R&D Abstract: It is well-accepted that the majority of the matter in the universe is dark and non-baryonic. The nature of dark matter, however, remains mysterious. Various proposed candidates span a wide range in the mass and cross section parameter space. Many experimental efforts […]

Speaker: Geertje Heuermann (Karlsruhe Institute of Technology) Title: Active Shielding for Future Large-Scale Dark Matter Experiments Abstract: In this talk I will present the conceptual design of a water Cherenkov detector and a loaded liquid scintillator which effectively allow to reduce cosmogenic and radiogenic background sources in tonne scale dark matter detectors. Join Zoom Meeting https://lbnl.zoom.us/j/94627104366?pwd=K09lTTBHdk5UVEw1cm1EOEVxVU05QT09 Meeting […]

Speaker: Gioacchino Ranucci (INFN) Italy Title: First detection of solar neutrinos from the CNO cycle with Borexino Abstract: The liquid scintillator detector Borexino reported recently the direct observation of neutrinos produced in the carbon-nitrogen-oxygen (CNO) fusion cycle in the Sun. This is the first experimental evidence of the existence of such reaction sequence in a […]

Speaker: Jared Vann (University of Liverpool) Title: ARIADNE: Fast Optical Readout of Dual-Phase LArTPCs with Timepix3 Cameras Abstract: The ARIADNE experiment is a 1-ton dual-phase LArTPC with a novel optical readout method developed for applications in future Neutrino detectors. Optical readout is a potential alternative to existing charge based readouts in dual phase LArTPCs. The […]

Speaker: Stefan Schoppmann (UC Berkeley) Title: the STEREO Experiment: Search for Sterile Neutrinos Abstract: In recent years, two unsolved anomalies have appeared from the study of reactor neutrinos: the reactor antineutrino anomaly being related to the absolute neutrino flux, and the energy spectral shape anomaly. By conducting measurements of reactor neutrinos at very short baselines […]

Speaker: Stephane Zsoldos (UC Berkeley) Title: An overview of the Hyper-Kamiokande experiment Abstract: Hyper-Kamiokande, which started construction in April 2020, is a next generation underground water Cherenkov detector, based on the highly successful Super-Kamiokande experiment. It will serve as a far detector, 295 km away, of a long baseline neutrino experiment for the upgraded J-PARC […]

Speaker: Adrien Hourlier (MIT) Title: MiniBooNE Oscillation Results with Complete Dataset Abstract: The MiniBooNE experiment, located on the Booster Neutrino Beamline at Fermilab, reports a total excess of 638.0+/-132.8 electron-like events (4.8σ) from a data sample corresponding to 18.75×10^20 protons-on-target in neutrino mode, which is a 46% increase in the data sample with respect to […]

Speaker: Scott Kravitz (LBNL)    Title: CrystaLiZe - Solid Xenon Detector R&D   Abstract:  Radon and its daughter decays limit the sensitivity of direct WIMP dark matter searches, despite extensive screening programs, careful material selection and specialized Rn-reduction systems. For xenon time projection chambers, a means to surpass this constraint may lie in crystallizing the xenon. In […]

Speaker: Kev Abazajian (UC Irvine)    Title: Arising and demising candidate dark matter signals on the sky, and the potential of future searches   Abstract:  New  technologies searching are observing the high-energy Universe with unprecedented detail. One of the primary goals of gamma-ray and X-ray astronomy has been the search for potential signals of dark matter […]

Speaker: Sukanya Chakrabarti (Rochester Institute Technology) Title: Measuring Accelerations— Near & Far Abstract: Recent technological advances and observational programs now make it possible for us to directly measure the Galactic acceleration experienced by stars within the Milky Way. I will discuss the traditional method of estimating Galactic accelerations and thereby the Oort limit (from which […]

Speaker: Livia Ludhova (RWTH Aachen/Forschungszentrum Jülich)   Title: JUNO: the first multi-kton liquid scintillator based neutrino detector   Abstract:   The Jiangmen Underground Neutrino Observatory (JUNO) is a neutrino experiment under construction in a 700 m deep underground laboratory near Jiangmen in South China. The detector main component will be 20 kton of liquid scintillator held in a […]

Speaker: Julieta Gruszko (University of North Carolina at Chapel Hill) Title: Shedding ‘Nu’ Light on the Nature of Matter: NuDot and the Search for Majorana Neutrinos Abstract: Why is the universe dominated by matter, and not antimatter? Neutrinos, with their changing flavors and tiny masses, could provide an answer. If the neutrino is its own […]

Speaker: Tomi Akindele (Lawrence Livermore National Laboratory)  Title: Antineutrinos as a Nuclear Safeguards Tool Abstract: To date, antineutrino experiments built for the purpose of demonstrating a nonproliferation capability have typically employed organic scintillator, and been situated as close to the core as possible - typically a few meters to tens of meters distant, and have […]

Speaker: Anton Baleato Lizancos (Cambridge) Title: “Understanding biases to CMB lensing and delensing on the road to precision science” Abstract: For cosmologists, CMB lensing can be both a blessing and a nuisance. It's a nuisance because it generates spurious B-mode polarisation which obscures the highly-sought-after signal from inflationary gravitational waves, but it's a blessing because […]

Speaker: Liang Dai (UC Berkeley) Title: A New Window Into the Universe: Gravitational Waves From Compact Binary Coalescence  Abstract: Detection of chirping gravitational waves (GWs) at ground-based laser interferometry observatories LIGO and Virgo have uncovered a population of compact binary mergers. Forthcoming observing runs with upgraded sensitivity and more observatories joining the network will tremendously increase the number […]

Speaker: Tongyan Lin (UC San Diego) Title: Direct Detection of Sub-GeV Dark Matter with the Migdal Effect in Semiconductors Abstract: As direct detection experiments expand the search for sub-GeV dark matter and lower their energy thresholds, the many-body physics of crystals can be increasingly important and also be used to enhance discovery potential. In this […]

Speaker: ​Elena Gramellini (​Fermilab) Title: Seeing the ​L​ight in ​P​ixelated TPCs: Q-Pix and LILAr  Abstract: Noble elements Time Projection Chambers (TPC) are the detector technology of choice for the next generation of discovery at the intensity frontier. These detectors provide a number of experimental handles, such as full 3D-imaging, excellent particle identification and precise calorimetric energy reconstruction which […]

Speaker: Patrick Komiske (MIT) Title: Optimizing Particle Physics With Machine Learning Abstract: Exciting new advances in particle physics, particularly in the area of jet physics at colliders such as the LHC, are being driven by machine learning (ML) methods. For example, in just a few short years, the state of the art for important tasks such as jet […]

Speaker: Kelly Stifter (Stanford University) Title: The LZ Dark Matter Experiment: From Detector Development to First Physics Abstract: LZ is a next generation dark matter search designed to significantly extend our sensitivity to WIMP dark matter candidates. At the core of the LZ experiment is a dual-phase xenon time projection chamber (TPC) with a 7 ton […]