Events at Physics |
Events During the Week of November 28th through December 5th, 2021
Sunday, November 28th, 2021
- Academic Calendar
- Thanksgiving recess
- Abstract: *Note: actual end time may vary.*
Monday, November 29th, 2021
- No events scheduled
Tuesday, November 30th, 2021
- Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminar
- TBD
- Speaker: Lukas Graf , UCSD/Berkeley: 2021 PFC fellow talk
- Council Meeting
- Time: 4:00 pm - 5:00 pm
- Place: 2314 Chamberlin
- Speaker: Mark Eriksson, UW-Madison, Department of Physics
- Host: Mark Eriksson
Wednesday, December 1st, 2021
- Physics ∩ ML Seminar
- Uncovering the Unknowns of Deep Neural Networks: Challenges and Opportunities
- Time: 11:00 am - 12:15 pm
- Place: Chamberlin 5280 (Zoom link also available for online participants who signed up on our mailing list)
- Speaker: Sharon Li, University of Wisconsin-Madison
- Abstract: The real world is open and full of unknowns, presenting significant challenges for machine learning (ML) systems that must reliably handle diverse, and sometimes anomalous inputs. Out-of-distribution (OOD) uncertainty arises when a machine learning model sees a test-time input that differs from its training data, and thus should not be predicted by the model. As ML is used for more safety-critical domains, the ability to handle out-of-distribution data are central in building open-world learning systems. In this talk, I will talk about challenges, methods, and opportunities on uncovering the unknowns of deep neural networks for reliable decision-making in an open world.
- Host: Gary Shiu
- Department Meeting
- Time: 12:15 pm - 1:15 pm
- Place: B343 Sterling
- Speaker: Mark Eriksson, UW - Madison
- Host: Mark Eriksson
Thursday, December 2nd, 2021
- High Energy Seminar
- tbd
- Time: 2:30 pm - 3:30 pm
- Place: 4274 Chamberlin Hall
- Speaker: Caterina Vernieri, SLAC
- Abstract: tbd
- Host: Sridhara Dasu
- NPAC (Nuclear/Particle/Astro/Cosmo) Forum
- A "cool” copper collider to unveil the Higgs boson’s secrets
- Time: 2:30 pm - 3:30 pm
- Place: 4274 Chamberlin and Zoom:
- Speaker: Caterina Vernieri, SLAC
- Abstract: The Higgs boson was discovered in 2012 by the ATLAS and CMS experiments at the world’s most powerful particle collider, the Large Hadron Collider (LHC) in Geneva, Switzerland. This particle plays a unique role in fundamental physics. It gives all of the known elementary particles, including itself, their masses. While we now have a strong evidence that the Higgs field is indeed the unique source of mass for the known elementary particles, the next step is to search for new interactions that could also explain why the Higgs field has the properties required by the Standard Model of particle physics. We have no clear roadmap to this new theory but the Higgs boson plays a crucial role in this quest. The goal of a next-generation e+e- collider is to carry out precision measurements to per-cent level of the Higgs boson properties that are not accessible at the LHC and HL-LHC. In this talk will we present the study of a new concept for a high gradient, high power accelerator with beam characteristics suitable to study the Higgs boson, the Cool Copper Collider (C^3), with the goal of significantly reducing capital, footprint and operating costs. We will present a timeline for such a collider to enable Higgs boson precision measurements exploring increasing energies for the center-of-mass collisions. The exploitation of the complementarity between LHC and future colliders will be the key to understanding fundamentally the Higgs boson. Zoom video link: Passcode: 6m!^nfpQ
- Host: Sridhara Dasu
- Astronomy Colloquium Zoom Talk
- The Nancy Grace Roman Space Telescope and its H4RG-10 Detectors
- Time: 3:30 pm - 5:00 pm
- Place: This will be a Zoom Talk. Information to Follow soon.
- Speaker: Gregory Mosby, NASA
- Abstract: We have learned that our universe seems to be composed of significant amounts of invisible matter called dark matter and an unexpected dark energy driving the universe’s accelerating expansion. In the last few decades, we have also uncovered large populations of new worlds called exoplanets orbiting the stars of our Galaxy. These discoveries represent just a sample of the mysteries to investigate in our efforts to understand the universe. And to understand the universe, we must understand all its components. The Nancy Grace Roman Space Telescope will support this effort. The Roman Space Telescope with its Wide Field Instrument and the Coronagraph Instrument will help us study dark matter, dark energy, exoplanets, and more at infrared wavelengths. At the heart of the Roman Space Telescope are 18 newly designed infrared detectors the H4RG-10s. These detectors represent the state of the art in space-based detector technology. We will review the development and the performance of the flight lot detectors for the Roman Space Telescope, and we’ll cover the latest news from the project. The Roman Space Telescope will be an asset in the next decade, providing unprecedented wide and sensitive infrared surveys of the sky. These surveys by Roman will be key in helping us answer the open questions about the universe. This is a virtual talk. Please see the link below:
- Host: Professor Ellen Zweibel
Friday, December 3rd, 2021
- Graduate Introductory Seminar (Physics 701)
- HEP
- Time: 12:05 pm - 12:55 pm
- Place: 2241 Chamberlin
- Speaker: Tulika Bose, UW Madison Department of Physics
- Host: Sridhara Dasu
- Physics Department Colloquium
- The Increasing Peril from Nuclear Arms: and how physicists can help reduce the threat
- Time: 3:30 pm - 4:30 pm
- Place: 2103 Chamberlin Hall
- Speaker: Stewart Prager, Princeton
- Abstract: With geopolitical and technological changes mostly driven by the nuclear weapons states, we are slipping towards a new arms race and deterioration of the multi-decade arms control regime. This talk will describe the current critical situation, feasible steps to reduce the nuclear threat, and a new project sponsored by the American Physical Society to engage physical scientists in advocacy for nuclear threat reduction. After the colloquium a short meeting will be held for those interested in learning about the APS Physicists Coalition for Nuclear Threat Reduction.
- Host: Cary Forest