Fermilab colloquium calendar archive 2019

Appropriate for physicists Appropriate for all lab staff and members of the public

Event date	Title	Speakers	Host	Summary	Links
Jan. 2, 2019	No colloquium
Jan. 9, 2019	Open
Jan. 16, 2019	In the Spirit of Collaboration: Renovating the North American Hall at The Field Museum	Alaka Wali, The Field Museum	Chist Stoughton	The Native American Hall at The Field Museum in Chicago is over 50 years old and in need of an update! It is now scientifically inaccurate, contains harmful stereotypes of Native Americans, and doesn’t represent best museum practice in the care of collections. In this talk, I will discuss how museum staff members are collaborating with Native American scholars, museum professionals and community members to renovate the hall and present a fresh perspective on Native American lifeways and histories. I will discuss new approaches to content and to conservation and collections care. I will also discuss the critical importance of drawing on traditional ecological and cultural expertise.	Video
Jan. 23, 2019	Open
Jan. 30, 2019	Cancelled/rescheduled to February 27
Feb. 6, 2019	Robotic and autonomous technologies	Mario Di Castro, CERN	Katsuya Yonehara	Nowadays, intelligent robotic systems are becoming essential for industry and harsh environments, such as the CERN accelerator complex. Aiming to increase safety and machine availability, robots can help perform repetitive and dangerous tasks which humans either prefer to avoid or are unable to do because of hazards, size constraints or the extreme environments in which they take place, such as outer space or radioactive experimental areas. In this presentation, the current status the robotic systems applied at CERN is described. Several robotics solutions have been applied in the past years at CERN, as well as custom made robotic devices. New ideas and solution could come in the close future to increase safety of CERN personnel decreasing radiation dose taken. Current and future research and development in robotics are described, as well as the results from the commissioning of various novel robotic controls.	Video
Feb. 13, 2019	Probing the Universe with Gravitational Waves	Barry Barish, Caltech and UC Riverside	Dmitri Denisov	The discovery of gravitational waves, predicted by Einstein in 1916, is now enabling important tests of the theory of general relativity, as well as beginning multi-messenger astronomy: the combined observations of astrophysical phenomena using electromagnetic radiation, gravitational waves and neutrinos. Plans and prospects for gravitational wave science will be explored. Barry is a 2017 Nobel Prize winner	Video
Feb. 20, 2019	No colloquium
Feb. 27, 2019	Is the Electron Round: TeV Beyond Standard Model tests on a Tabletop	Gerald Gabrielse, Northwestern University	Mike Albrow	The standard model of particle physics is both the great triumph and the great frustration of modern physics. It can make predictions accurate to 1 part in 1012 for the electron magnetic moment, while being unable to explain basic features of the universe. The standard model predicts that the electron charge is not quite round, i.e. it has an electric dipole moment, but that this moment is far too small to measure. Most other models, like supersymmetry models, predict an electric dipole moment that is within experimental reach. The Advanced Cold Molecule EDM (ACME) Collaboration has just reported a new measurement of the electron electric dipole moment that has a sensitivity increased by an order of magnitude.	Video
March 6, 2019	Physics of viruses	Roya Zandi, University of California	Chris Stoughton	Despite the proliferation of viruses in nature, the mechanisms by which hundreds or thousands of proteins assemble to form structures with icosahedral order (IO) is completely unknown. In this talk, I will discuss the results of our simulations of a minimal model and show that the mechanical properties of building blocks including the spontaneous curvature, flexibility and bending rigidity of coat proteins are sufficient to predict the size, symmetry and shape selectivity of the assembly products. Further, using continuum elasticity theory, I prove that as a spherical cap grows, there is a deep potential well at the locations of disclinations that later in the assembly process will become the vertices of an icosahedron, explaining at least in part, the error-free assembly of protein subunits into capsids with universal IO.
March 13, 2019	The Photometric LSST Astronomical Time Series Challenge (PLAsTiCC)	Renee Hlozek, University of Toronto	Chris Stoughton	The Photometric LSST Astronomical Time Series Classification Challenge (PLAsTiCC) was an open data challenge to classify simulated astronomical time-series data in preparation for observations from theLarge Synoptic Survey Telescope (LSST), which will achieve first light in 2019 and commence its 10-year main survey in 2022. LSST will revolutionize our understanding of the changing sky, discoveringand measuring millions of time-varying objects. In this challenge, we posed the question: how well can we classify objects in the sky that vary in brightness from simulated LSST time-series data, with all itschallenges of non-representativity? I will describe the PLAsTiCC challenge from conception, validation to delivery and highlight the results of the challenge, and discuss how this rich and complex simulationcan be used to better understand the transient sky.	Video
March 20, 2019	3D Printing Functional Materials & Devices	Michael McAlpine, Chris Stoughton	Chris Stoughton	The ability to three-dimensionally interweave biological and functional materials could enable the creation of devices possessing unique and compelling geometries, properties, and functionalities. Indeed, interfacing active devices with biology in 3D could impact a variety of fields, including regenerative bioelectronics, smart prosthetics, biomedical devices, and human-machine interfaces. Our approach is to use extrusion-based multi-material 3D printing, which is an additive manufacturing technology that offers freeform, autonomous fabrication. This approach addresses the dichotomies presented above by (1) using 3D printing and imaging for personalized, multifunctional device architectures; (2) employing ‘nano-inks’ as an enabling route for introducing diverse material functionality; and (3) 3D printing a range of functional inks to enable the interweaving of a diverse palette of materials, from biological to electronic. 3D printing is a multiscale platform, allowing for the incorporation of functional nanoscale inks, the printing of microscale features, and ultimately the creation of macroscale devices. This blending of 3D printing, functional materials, and ‘living’ platforms may enable next-generation 3D printed devices, from a one-pot printer.	Video
March 27, 2019	Fear, Distortion, and Denial. Does Science Still Matter in America Today?	Kenneth Miller, Brown University	Chris Stoughton	Public opinion in the world’s leading scientific nation continues to demonstrate a surprising unwillingness to embrace the scientific consensus on issues affecting the well being and prosperity of the country and the world. While it might seem logical to attribute the prevalence of anti-science attitudes to religious dogma or factual unawareness, the roots of this problem go far deeper, and relate to popular perceptions of science and scientists. I will consider multiple aspects of science denial, and suggest how the scientific enterprise and science education need to change to reclaim the cultural high ground in American society.	video
April 3, 2019	Ten Thousand Pieces of Blue Sky: Building Towards the Complete Picture of Exoplanet Demographics	Jessie Christiansen, Caltech	Chris Stoughton	The NASA Kepler mission has provided its final planet candidate catalogue, the K2 mission has contributed another four years’ worth of data, and the NASA TESS mission has just started producing planet candidates of its own. The demographics of the exoplanet systems probed by these transiting exoplanet missions are complemented by the demographics probed by other techniques, including radial velocity, microlensing, and direct imaging. I will walk through the progress of the Kepler occurrence rate calculations, including some of the outstanding issues that are being tackled. I will demonstrate how K2 and TESS are able to push the stellar parameter space in which we can explore occurrence rates beyond that examined by Kepler, and progress to that end. Finally, I will highlight some of the pieces of the larger demographics puzzle - occurrence rate results from the other techniques that probe different stellar and exoplanet regimes - and how we can start joining those pieces together.	video
April 10, 2019	Leon Lederman and his impact on science education	Christine Middleton, Physics Today	Mike Albrow	Leon Lederman is well-known as the former director of Fermilab and for his Nobel Prize winning work in high-energy physics. However, he also had a passion for science education. Leon recognized that American students were not graduating high school with a working knowledge of scientific ideas, and he took active steps toward improving the state of science education that are still impacting students today. He was a vocal advocate for the Physics First model of science education, which is increasingly being used in schools across the country. The three-year residential school he founded for gifted students, the Illinois Mathematics and Science Academy (IMSA), is still one of the top-ranking high schools in the country. Leon’s training program for teachers, the Teachers Academy for Math and Science (TAMS), serves as a model for science education reform today. These and other programs with which he was involved make up a robust legacy that continues to contribute to the educational community.	Video
April 17, 2019	Digital art installations in museum exhibitions: “Along the River during the Qingming Festival” and the Cyrus Tang Hall of China	Deborah Bekken, Field Museum	Chris Stoughton	In June 2015, the Field Museum opened the Cyrus Tang Hall of China, a permanent exhibition that introduces visitors to more than 10,000 years of Chinese cultural history and features over 350 objects from the museum’s East and Southeast Asian collections. To help interpret this expansive subject, key themes and objects are given context by a suite of large-scale, custom-produced interactive media strategically integrated throughout the five-gallery, 9,000 square-foot space. As a coherent set of interactive media, the Cyrus Tang Hall of China offers visitors a user experience that is data-rich but not overpowering. This presentation will discuss the goals, development, prototyping, and evaluation of digital versions of art and artifacts within the Cyrus Tang Hall of China.	Video
April 24, 2019	Status of ILC in Japan	Masanori Yamauchi, Director General of KEK	Joe Lykken	Special Colloquium - The International Linear Collider (ILC) is an electron-positron collider with 250 GeV center-of-mass energy designed to study Higgs couplings with a much higher precision than can be achieved at hadron collider experiments. This will make it an excellent tool to probe for physics beyond the Standard Model. KEK proposed that the Japanese government host this new machine in Japan as an international project, and the proposal has been strongly supported by ICFA. The Japanese government recently released its statement about the ILC, and the project’s future direction is becoming clearer. In this colloquium, the status and possible future of the ILC in Japan will be presented.	Video
April 24, 2019	El Niño as a Topological Insulator: A Surprising Connection Between Climate, and Quantum Physics	Brad Marston, Brown University	Pushpa Bhat	Symmetries and topology play central roles in our understanding of physics. Topology, for instance, explains the precise quantization of the Hall effect and the protection of surface states in topological insulators against scattering from disorder or bumps. However discrete symmetries and topology have so far played little role in thinking about the fluid dynamics of oceans and atmospheres. In this talk I show that, as a consequence of the rotation of the Earth that breaks time reversal symmetry, equatorially trapped Kelvin and Yanai waves emerge as topologically protected edge modes. Thus the oceans and atmosphere of Earth naturally share basic physics with topological insulators. As equatorially trapped Kelvin waves in the Pacific Ocean are an important component of El Niño Southern Oscillation and other climate processes, these new results demonstrate that topology plays a surprising role in Earth’s climate system.	Video
May 1, 2019	Status and Conservation Strategies for the Rusty Patched Bumblebee in the Chicago Region	Terry Miesle & Brittany Buckles, Native Bee Awareness Initiative and Fermilab Natural Areas	Jacques Hooymans	Once very common throughout the Eastern US, the Rusty-Patched Bumble Bee (Bombus affinis) populations have dramatically decreased in the past few decades. Added to the US Endangered Species List, this bee has become the recipient of substantial attention. We'll discuss some of the reasons for this decline, how we can help, and how we can report information as Citizen Scientists. Our activity in our back yards and protected areas is a unique opportunity to directly help an endangered species.	Video
May 8, 2019	Programming languages and particle physics	Jim Pivarski, Princeton	Don Lincoln	Programming languages aren't for computers; they're for people. If a language doesn't make it easier to express your physics problem, it's not a suitable language. Some fields have specialized "Domain Specific Languages" (DSLs) that trade freedom of expression for focus on the problem at hand, and can even improve performance by limiting this scope. A prime example is SQL, widely used by data analysts outside of physics, which trades generic computation for a SELECT-WHERE-GROUPBY pattern. Interestingly, this was the design pattern of the first electromechanical computers (Hollerith machine, 1890) and it's still a major focus of big data today (Dean & Ghemawat: MapReduce, 2004). Particle physics problems don't fit SQL well; in fact, physicists became involved in computing in tandem with the invention of generic, digital computers (Von Neumann's stored-program machine, 1945). I will present some history, some general features of programming languages, what "declarative" really means, and will show some perhaps surprising examples of DSLs you're already using.	Video
May 15, 2019	The Formative Years of the Top Quark	Paul Grannis, Stony Brook University		The top quark was widely anticipated but was only sighted in early 1995. I will describe the birth and early life of the top quark, together with some comments on what we should look forward to as the top matures through LHC studies and beyond.	Video
May 22 - May 23, 2019	Open
May 29, 2019	The Trouble with Einstein’s Time	Jimena Canales, Harvard	Chris Stoughton	Einstein’s famous claim that “the distinction between the past, present and future is only a stubbornly persistent illusion” underpins most physicists’ current understanding of time. Yet in recent years, agrowing number of contemporary physicists have opposed the need to write off our experience of emergent temporality from our understanding of the universe. The “hole at the heart of physics” (Scientific American, 2002) is usually traced back to how time is defined by the theory of relativity and the “block universe.”Can these debates be solved by science alone or are they inescapably philosophical, historical and cultural? My talk will explore the origins of this persistent quandary by focusing on the relation of physics to philosophy, and history and the humanities.
June 5, 2019	Robophysics: robotics meets physics	Daniel Goldman, Georgia Institute of Technology	Chris Stoughton	Robots will soon move from the factory floor and into our lives (e.g. autonomous cars, package delivery drones, and search-and-rescue devices). However, compared to living systems, locomotion by such devices is still relatively limited, in part because principles of interaction with complex environments are largely unknown. In this talk I will discuss efforts to develop a physics of moving systems -- a locomotion ``robophysics'' -- which we define as the pursuit of the discovery of principles of self-generated motion [Aguilar et al, Rep. Prog. Physics, 2016].	Video
June 12, 2019	No colloquium - User's Meeting
June 19, 2019	Macroscopic Quantum states at Ultra-low Temperature	William Halperin, Northwestern	Chris Stoughton	New anisotropic states of superfluid 3He have been studied at ultra-low temperatures. They are similar to those in the superconducting compound UPt3. I will discuss and compare three unconventional superconducting/superfluid materials for which measurements of physical properties indicate unconventional order parameter symmetries, most importantly chiral symmetry and broken time reversal symmetry. These are in evidence in high quality single crystals of the f-wave superconductor, UPt3; the p-wave superfluid, 3He; and 3He in highly porous silica aerogel.[1] All of these systems have multiple thermodynamic phases, with different order parameter structure. In this context, theoretical predictions indicate that anisotropic quasiparticle scattering favors stability of anisotropic quantum states.[2] We have shown that this is the case for chiral states of superfluid 3He confined to uniformly anisotropic silica aerogel,[3] and evident in the recently discovered orbital-flop phase. This is also apparent in UPt3 and can be attributed to anisotropic impurities associated with prism-plane stacking faults.	Video
June 26, 2019	The Periodic Table in 1869: What D. I. Mendeleev Did and Did Not Do	Michael Gordin, Princeton	Vladimir Shiltsev	2019 has been named the International Year of the Periodic Table because it marks 150 years since Dmitrii Mendeleev (1834-1907), then a young chemistry professor in St. Petersburg, formulated his version of the system of elements. The choice of date is somewhat arbitrary. There were five other attempts at periodic tables postulated earlier in the 1860s, some of which resemble our present version slightly more than Mendeleev’s in certain respects. Also, the main achievement of Mendeleev’s table — its predictive capacity — was also a gradual process that began in 1869 but took many years to cement his international reputation. This talk will explore what Mendeleev did in 1869, how it related to what came before and after, and also discuss a few of the myths that have accumulated around his work.	Video
July 3, 2019	No colloquium
July 10, 2019	Finding Needles in the Haystack: Outlier Detection in Astronomical Datasets	J. Rafael Martinez-Galarza, Harvard & Smithsonian	Andres Felipe Alba Hernandez/Chris Stoughton	Upcoming large observational time-domain surveys such as the Large Synoptic Survey Telescope (LSST) and the Transiting Exoplanet Survey Satellite (TESS) will produce millions of regularly- and irregularly-sampled astronomical light curves. The large volume of the resulting datasets, however, implies that their processing, classification, and interpretation will require sophisticated algorithms involving statistical learning. One important question is: how do we discover the unexpected when we are presented with a large dataset? How do we find scientifically interesting light curves (or any kind of astronomical data) that are not explained by current models? In this talk I will discuss state-of-the-art anomaly detection methods that use machine learning to find needles in this upcoming haystack of data, and will show the results of applying them to a dataset of Kepler, TESS, and Chandra objects. After a brief introduction to machine learning and its application in time-domain astronomy, I will delve into different methods for outlier detection. I will then show how these methods can be adapted for time-domain and for high energy astronomy, and present the results of applying them to a large dataset of TESS light curves and the Chandra Source Catalog 2.0. I will describe the astrophysical implications of our findings in terms of where the most extreme outliers live in the Hertzprung-Russell diagram, and discuss the potential of the algorithms for discovery in the era of large astronomical datasets.	Video
July 17, 2019	Cold Atom Sensing: Gravity, Tomography, and Gyroscopes	Steve Libby, Lawrence Livermore National Lab	Vic Scarpine	The ability to use lasers to cool atoms to micro-Kelvin temperatures and subsequently control their quantum mechanical behavior has led to the development of exquisitely precise ‘quantum’ sensors. Our LLNL – AOSense, Inc. collaboration is pursuing diverse applications of these atom interferometer sensors that directly exploit their extraordinary accuracy, scale factor stability, low noise and... More »	Video
July 24, 2019	Open
July 31, 2019	Open
Aug. 7, 2019	Neutrino: chronicles of an aloof witness	Goren Senjanovic, Abdus Salam ICTP	Erica Snider	As you read this, trillions of neutrinos from the sun are passing through every square inch of your body, doing no harm whatsoever. They convey information from the depth of the universe and have been present from its very birth. Neutrinos have captured the imagination of physicists from the time they were first conceived and... More »	Video
Aug. 14, 2019	Cancelled - No colloquium
Aug. 21, 2019	New physics and astrophysics applications of coherent neutrino-nucleus scattering	Louis Strigari, Texas A&M University	Patrick Fox	Coherent elastic neutrino-nucleus scattering (CEvNS) is a long-standing theoretical prediction of the Standard Model (SM), and the COHERENT experiment has recently achieved the first detection of it. CEvNSprovides an important probe of physics beyond the SM. In addition, it can open up a new window into neutrino astrophysics, through studies of low energy neutrinos from the Sun, atmosphere, and supernovae. CEvNS is also vital for understanding and interpreting future particle dark matter searches. In this talk, I will discuss the prospects for learning about the nature of neutrinos and astrophysical sources from CEvNS detection, highlighting how astrophysical and terrestrial-based detections play important and complementary roles.	Video
Aug. 28, 2019	Space Observatories of the Highest Energy Particles: POEMMA & EUSO-SPB	Angela V. Olinto, University of Chicago	Pushpa Bhat	What are the mysterious sources of the most energetic particles ever observed? What are the sources of energetic cosmic neutrinos? How do these particles interact at extreme energies? Building on the progress achieved by the Pierre Auger Observatory, an international collaboration is working on space and sub-orbital missions to answer these questions. The Extreme Universe Space Observatory (EUSO) on a super pressure balloon (SPB) was built to detect ultra-high energy cosmic-rays fluorescence from above. EUSO-SPB1 flew in 2017. EUSO-SPB2 is being built to observe fluorescence and Cherenkov from UHECRs and neutrinos. These missions lead to POEMMA, the Probe Of Extreme Multi-Messenger Astrophysics, a space mission designed to discover the sources of UHECRs and to observe neutrinos above 20 PeV from energetic transient events. POEMMA will open new Multi-Messenger windows onto the most energetic events in the Universe, enabling the study of new astrophysics and particle physics at these otherwise inaccessible energies	Video
Sept. 4, 2019	No colloquium
Sept. 11, 2019	The Greening of Buildings, 2013-2025	Prof. Robert Knapp, Evergreen State College	Pushpa Bhat	The building sector is a key locus for promoting sustainability, given that it accounts for more than 40% of US energy use and a similar proportion of greenhouse gas emissions. Recent activity has centered on the “net-zero” target—buildings producing more energy each year than they use. 2013 saw the opening of Seattle’s Bullitt Center, a six-story net-zero office building in the cloudiest US city. After outlining the combination of technical and organizational moves responsible for this landmark and its several cousins, the talk will address the near future: what are technical and social prospects and limits for sustainable energy and materials use in buildings? Three specific inventions would make a difference.	Video
Sept. 16, 2019	System Design Considerations for Noisy Intermediate-Scale Quantum Machines	Chad T. Rigetti, Rigetti Computing	Eric Holland	Quantum computers powered by hundreds of gate based, superconducting qubits are just over the horizon. Several groups have already announced activities on quantum processors of 50 qubits or more. The systems containing these processors will be of fundamental importance in quantum algorithm development, on our path toward quantum advantage in the Noisy Intermediate Scale Quantum (NISQ) era. This talk will address the trade-offs in the design of hybrid quantum-classical computing systems based on gate based superconducting processors approaching 100 qubits that enable applications development today on Rigetti's Quantum Cloud Services.	Video
Sept. 18, 2019	Tension in the Hubble Constant	Wendy Freeman, University of Chicago	Dan Hooper	I will present new results from the Carnegie-Chicago Hubble Program (CCHP), a long-term project to independently measure a value of the Hubble constant to very high precision and accuracy. We have built an entirely new data set from the ground up. Using the Hubble Space Telescope Advanced Camera for Surveys, the CCHP is using the tip of the red giant branch (TRGB) to calibrate Type Ia supernovae. Our supernova sample comes from the Carnegie Supernova Project, carried out at Las Campanas, Chile. Our value of the Hubble constant, Ho = 69.8, with statistical and systematic uncertainties of 0.8 and 1.7 km/sec/Mpc, respectively, falls midway between the value obtained from the Planck Cosmic Microwave Background analysis, and that obtained using Cepheids. I will address the uncertainties, and the discuss the current tension in Ho.
Sept. 25, 2019	Open
Oct. 2, 2019	Open
Oct. 9, 2019	Is Neutrino Astronomy Real?	John Beacom, Ohio State University	Dan Hooper	Neutrinos are almost undetectable particles. Astronomy is about detecting things. So how can we talk about neutrino astronomy? Although neutrinos have been detected from a few sources, the field is just beginning. What are the prospects for further detections? What would we gain if we are successful? Beacom10.10.19	Video
Oct. 16, 2019	Pinging space rocks - radar story of asteroids and comets	Marina Brozović, Jet Propulsion Laboratory/NASA	Rick Tesarek	Short of sending a spacecraft, radar observations have proven to be the most effective technique when studying asteroids and comets. Two most powerful radars in the world are the Arecibo Observatory in Puerto Rico and the Goldstone Solar System Radar in the Mojave Desert in California. To date, these radars have observed close to 1000... More »	Video
Oct. 23, 2019	No colloquium
Oct. 30, 2019	Cosmic Design	Shanthi Chandrasekar, Independent Visual Artist	Kurt Riesselmann/Georgia Schwender	Artists and scientists though seem to be worlds apart, have a number of things in common. Both are conceptual thinkers and experimenters in search of the unknown. This talk will give a peek into the working of an artist with an imaginative viewpoint on various concepts in science. Playing with ideas and medium is integral to the process with what-ifs, why-nots, and unexpected outcomes as the starting point, thus leading to unchartered territories. I would like to share this creative process that takes place in my studio combining both art and science through research, experiments and explorations.
Nov. 6, 2019	Supersymmetric Properties of Hadron Physics and Other Remarkable Features of Hadron Physics	Stan Brodsky, SLAC	Mike Albrow	QCD is not supersymmetrical in the traditional sense -- the QCD Lagrangian is based on quark and gluon fields -- not squarks nor gluinos. However, the observed meson, baryon, and tetraquark spectroscopy —bosons and fermions — displays remarkable supersymmetric features. I will discuss a new relativistic, frame-independent color-confining approach to hadron physics, “light front holography”, which predicts the hadron spectroscopy of meson, baryon, and tetraquarks as equal-mass members of the same supersymmetric representation.	Video
Nov. 13, 2019	What the Electron-Ion Collider can do for you	Timothy Hobbs, SMU and EIC Center at JLab	Pushpa Bhat	Both the High-Luminosity LHC (HL-LHC) and the high rates of the intensity frontier promise to provide critical information in efforts to test the Standard Model and uncover New Physics. Nevertheless, limitations in our understanding of the structure of nucleons and nuclei will remain dominant sources of systematic uncertainty. The proposed Electron-Ion Collider (EIC) will study... More »	Video
Nov. 20, 2019	Open
Nov. 27, 2019	No colloquium
Dec. 4, 2019	Deep Underground Measurements in Fundamental Physics and Astrophysics	Art McDonald, Queen's University	Pushpa Bhat	By going deep underground and creating ultra-clean detectors it is possible to address some very fundamental questions about our Universe: How does the Sun burn? What are the detailed properties of neutrinos and of the dark matter particles that make up 26% of our Universe and influence how it evolves? With the Sudbury Neutrino Observatory (SNO) we went 2 km underground to observe new properties of neutrinos that are beyond the Standard Model of Elementary Particles and also confirmed that the models of how the Sun burns are very accurate. With SNO+, we are now seeking new properties of neutrinos through measurement of the neutrino-less double beta decay of 130Te. The Global Argon Dark Matter Collaboration is pursuing measurements at the SNOLAB (Canada) and Gran Sasso (Italy) underground laboratories with the DEAP-3600, DarkSide-20k and Argo experiments, using liquid argon as a target for interactions by Weakly Interacting Massive Particles (WIMPs). By these measurements, we hope to push the sensitivity for detecting such potential Dark Matter particles by several orders of magnitude and perhaps observe a whole new type of matter.	Video
Dec. 11, 2019	No colloquium
Dec. 18, 2019	No colloquium
Dec. 25, 2019	No colloquium