Events at Physics |
Events During the Week of April 18th through April 25th, 2021
Monday, April 19th, 2021
- Plasma Physics (Physics/ECE/NE 922) Seminar
- Powering the Future: Fusion & Plasmas, the FESAC Long Range Planning Report
- Time: 12:00 pm
- Place: Zoom Meeting
- Speaker: Prof. Troy Carter, UCLA
- Abstract: A long-range plan has been created to accelerate the development of fusion energy and advance plasma science. This plan is based on substantial input from the research community, which conveyed a wealth of creative ideas and its passion to accelerate fusion energy development and advance plasma science over an intensive two-year process. The FESAC Long Range Planning Report provides a decade-long vision for the field of fusion energy and plasma science, presenting a path to a promising future of new scientific discoveries, industrial applications, and ultimately the timely delivery of fusion energy.
-----
Chris Hegna is inviting you to a scheduled Zoom meeting.
Join Zoom Meeting
Meeting ID: 918 3541 9103
Passcode: 578475
One tap mobile
+13126266799,,91835419103#,,,,*578475# US (Chicago)
+19292056099,,91835419103#,,,,*578475# US (New York)
Dial by your location
+1 312 626 6799 US (Chicago)
+1 929 205 6099 US (New York)
+1 301 715 8592 US (Washington D.C)
+1 346 248 7799 US (Houston)
+1 669 900 6833 US (San Jose)
+1 253 215 8782 US (Tacoma)
Meeting ID: 918 3541 9103
Passcode: 578475
Find your local number:
Join by SIP
91835419103@zoomcrc.com
Join by H.323
162.255.37.11 (US West)
162.255.36.11 (US East)
115.114.131.7 (India Mumbai)
115.114.115.7 (India Hyderabad)
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
103.122.166.55 (Australia)
149.137.40.110 (Singapore)
64.211.144.160 (Brazil)
69.174.57.160 (Canada)
207.226.132.110 (Japan)
Meeting ID: 918 3541 9103
Passcode: 578475 - Monday Science Seminar
- The Chemical Quandaries of Titan’s Atmosphere (and How We Can Solve Them)
- Time: 12:00 pm
- Place:
- Speaker: Erin Flowers, Princeton University
- Abstract: Titan, Saturn’s largest moon, has one of the most robust atmospheres of any terrestrial body in the solar system. Its very existence came as a surprise Gerard Kuiper when he first detected it in 1944. Since then various studies, most famously the Cassini-Huygens mission, have worked to characterize this atmosphere - its formation, physical properties, and chemical composition. These studies have revealed several anomalies that have yet to be solved, such as the detached haze layers, a mysterious over abundance of molecular hydrogen, and an even more confounding downward flow of molecular hydrogen towards its surface. I’ll be discussing some of the channels I’m pursuing to try to explain these anomalies, and what it can indicate if none of them are correct.
- Host: Melinda Soares-Furtado
- Plasma Theory Seminar
- Development and testing of a reduced runaway electron model for disruption simulation
- Time: 4:00 pm
- Place: Zoom Meeting
- Speaker: Alex Sainterme, UW
- Abstract: Chris Hegna is inviting you to a scheduled Zoom meeting.
Join Zoom Meeting
Meeting ID: 954 878 7359
Passcode: 4Ugg1v
Join by SIP
http://9548787359@zoomcrc.com
Join by H.323
162.255.37.11 (US West)
162.255.36.11 (US East)
115.114.131.7 (India Mumbai)
115.114.115.7 (India Hyderabad)
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
103.122.166.55 (Australia)
149.137.40.110 (Singapore)
64.211.144.160 (Brazil)
69.174.57.160 (Canada)
207.226.132.110 (Japan)
Meeting ID: 954 878 7359
Passcode: 596249 Tuesday, April 20th, 2021
- Council Meeting
- Physics Council
- Time: 4:00 pm - 5:00 pm
- Place:
- Host: Sridhara Dasu
Wednesday, April 21st, 2021
- Physics ∩ ML Seminar
- Machine Learning for Calabi-Yau metrics
- Time: 11:00 am - 12:15 pm
- Place: Online Seminar: Please sign up for our mailing list at www.physicsmeetsml.org for zoom link
- Speaker: Fabian Ruehle, CERN and Oxford
- Abstract: String theory is a very promising candidate for a fundamental theory of our universe. An interesting prediction of string theory is that spacetime is ten-dimensional. Since we only observe four spacetime dimensions, the extra six dimensions are small and compact, thus evading detection. These extra six-dimensional spaces, known as Calabi-Yau spaces, are very special and elusive. They come with a specific type of metric needed to make string theory consistent. While we know, thanks to the heroic work of Calabi and Yau, that this metric exists, we neither know what it looks like nor how to construct it explicitly. Thinking of the metric as a function that satisfies three constraints entering the Calabi-Yau theorem, we can parameterize the metric as a neural network and formulate the problem as multiple continuous optimization tasks. I will show that this allows us to approximate Calabi-Yau metrics to very high accuracy, which will have important applications in Physics and Mathematics.
- Host: Gary Shiu
- Department Meeting
- Department Meeting - CANCELLED
- Time: 12:15 pm - 1:15 pm
- Place: Cancelled due to lack of urgent business
- Speaker: Sridhara Dasu, Department Chair
- CANCELLED due to lack of urgent business.
- Host: Sridhara Dasu
Thursday, April 22nd, 2021
- Cosmology Journal Club
- Time: 12:00 pm - 1:00 pm
- Abstract: Each week, we start with a couple scheduled 15 minute talks about one's research, or an arXiv paper. The last 30 minutes will typically be open to the group for anyone to discuss an arXiv paper.
All are welcome and all fields of cosmology are appropriate.
Contact Ross Cawthon, cawthon@wisc, for more information.
Zoom info
Meeting ID: 93592708053, passcode: cmbadger
Or click:
- High Energy Seminar
- Searches for New Physics with Long Lived Particles
- Time: 2:00 pm - 3:30 pm
- Place:
- Speaker: Lesya Horyn, Fermi Lab
- Abstract: With the lack of evidence for new physics from the LHC’s Run 2 dataset so far, it is essential that we leave no corner of phase space unexplored. In this talk, I will discuss a recent result from the ATLAS Experiment looking for leptons with large impact parameters. This result provides unique sensitivity to sleptons with lifetimes between 0.001 and 10 ns in Gauge-Mediated Supersymmetry Models for the first time at the LHC, improving upon previous limits by almost an order of magnitude. I will also discuss trigger limitations in searches for long lived particles, and how the planned upgrades to the LHC detectors might be able to improve the situation.
ZOOM Only: - Host: Kevin Black
- NPAC (Nuclear/Particle/Astro/Cosmo) Forum
- Searches for New Physics with Long Lived Particles
- Time: 2:00 pm - 3:00 pm
- Place: Zoom:
- Speaker: Lesya Horyn, Fermilab
- Abstract: With the lack of evidence for new physics from the LHC’s Run 2 dataset so far, it is essential that we leave no corner of phase space unexplored. In this talk, I will discuss a recent result from the ATLAS Experiment looking for leptons with large impact parameters. This result provides unique sensitivity to sleptons with lifetimes between 0.001 and 10 ns in Gauge-Mediated Supersymmetry Models for the first time at the LHC, improving upon previous limits by almost an order of magnitude. I will also discuss trigger limitations in searches for long lived particles, and how the planned upgrades to the LHC detectors might be able to improve the situation.
- Host: Kevin Black
- Astronomy Colloquium
- Simulating Galaxy Formation
- Time: 3:30 pm - 5:00 pm
- Place: Zoom meeting(see Abstract ) Coffee and tea 3:30pm, Talk 3:45pm
- Speaker: Mark Vogelsberger, MIT
- Abstract: Cosmological simulations of galaxy formation have evolved significantly over the last years. In my talk I will describe recent efforts to model the large-scale distribution of galaxies with cosmological hydrodynamics simulations. I will focus on large-scale simulations like IllustrisTNG. After demonstrating the success of these simulations in terms of
reproducing an enormous amount of observational data, I will also talk about their limitations and directions for further improvements over the next couple of years.
Zoom Link:
- Host: Elena D'onghia
Friday, April 23rd, 2021
- Theory Seminar (High Energy/Cosmology)
- The Weak Scale as a Trigger
- Time: 11:00 am - 12:00 pm
- Place: For zoom link, sign up at:
- Speaker: Raffaele-Tito D'Agnolo, Université Paris-Saclay
- Abstract: I will discuss settings where the Higgs mass squared affects the vacuum expectation value of local operators and can thus act as a “trigger” of new cosmological dynamics. This triggering mechanism underlies several existing solutions to the hierarchy problem that trace the origin of the weak scale to the early history of the Universe. Thinking about these solutions more systematically from the point of view of weak scale triggers allows to understand their common predictions, to find new solutions and to identify unexpected physics related to naturalness in a rather model-independent way. As an example I discuss a BSM trigger in a Two Higgs Doublet Model and show how it can be used to link the tuning of the Higgs mass to that of the cosmological constant. This weak scale trigger demands the existence of new Higgs states necessarily comparable to or lighter than the weak scale, with no wiggle room to decouple them.
- Host: Lars Aalsma
- Department Coffee Hour
- Department Coffee Hour (Virtual)
- Time: 3:30 pm - 4:30 pm
- Place: Virtual (see abstract for connection info)
- Abstract: Topic: Department Coffee Hour
Time: Jan 29, 2021 03:30 PM Central Time (US and Canada)
Every week on Fri, until May 14, 2021, 16 occurrence(s)
Jan 29, 2021 03:30 PM
Feb 5, 2021 03:30 PM
Feb 12, 2021 03:30 PM
Feb 19, 2021 03:30 PM
Feb 26, 2021 03:30 PM
Mar 5, 2021 03:30 PM
Mar 12, 2021 03:30 PM
Mar 19, 2021 03:30 PM
Mar 26, 2021 03:30 PM
Apr 2, 2021 03:30 PM
Apr 9, 2021 03:30 PM
Apr 16, 2021 03:30 PM
Apr 23, 2021 03:30 PM
Apr 30, 2021 03:30 PM
May 7, 2021 03:30 PM
May 14, 2021 03:30 PM
Please download and import the following iCalendar (.ics) files to your calendar system.
Weekly:
Join Zoom Meeting
Meeting ID: 979 8528 1970
Passcode: 309601
One tap mobile
+13126266799,,97985281970#,,,,*309601# US (Chicago)
+19292056099,,97985281970#,,,,*309601# US (New York)
Dial by your location
+1 312 626 6799 US (Chicago)
+1 929 205 6099 US (New York)
+1 301 715 8592 US (Washington D.C)
+1 346 248 7799 US (Houston)
+1 669 900 6833 US (San Jose)
+1 253 215 8782 US (Tacoma)
Meeting ID: 979 8528 1970
Passcode: 309601
Find your local number:
Join by SIP
97985281970@zoomcrc.com
Join by H.323
162.255.37.11 (US West)
162.255.36.11 (US East)
115.114.131.7 (India Mumbai)
115.114.115.7 (India Hyderabad)
213.19.144.110 (Amsterdam Netherlands)
213.244.140.110 (Germany)
103.122.166.55 (Australia)
149.137.40.110 (Singapore)
64.211.144.160 (Brazil)
69.174.57.160 (Canada)
207.226.132.110 (Japan)
Meeting ID: 979 8528 1970
Passcode: 309601
- Host: Climate and Diversity Committee