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Events During the Week of June 13th through June 20th, 2021

Sunday, June 13th, 2021

Academic Calendar
Graduate School Summer 2021: Summer Degree Window Period doctoral degree deadline
Time: 11:55 pm
Place:
Abstract: https://grad.wisc.edu/current-students/doctoral-guide/ *Important Note: The “Window Period” is the time between the end of one degree period and the beginning of the next. You must have been registered for the previous semester (Fall, Spring, or Summer). If all degree requirements are met by the end of the window period, your degree will be granted for the following semester. However, you will not have to register or pay fees for the next semester. CONTACT: 262-2433, gsacserv@grad.wisc.edu URL: https://grad.wisc.edu/current-students/doctoral-guide/
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Monday, June 14th, 2021

No events scheduled

Tuesday, June 15th, 2021

Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminar
Signature of a quark-hadron phase transition from g-mode oscillations in neutron stars
Time: 2:00 pm
Place: Zoom https://berkeley.zoom.us/j/91922781599
Speaker: Prashanth Jaikumar, California State University Long Beach
Abstract: Neutron stars contain matter at extremely high density and gravitational waves from neutron stars can help us discover new forms of matter. I will present my recent work on computing the adiabatic sound speed in neutron stars and its application to g-mode oscillations as a promising signature of a mixed phase. I will also discuss estimates of g-mode damping in neutron/quark matter.
Host: Baha Balantekin
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Wednesday, June 16th, 2021

Physics ∩ ML Seminar
Explaining Neural Scaling Laws
Time: 11:00 am
Place: Online Seminar: Please sign up for our mailing list at www.physicsmeetsml.org for zoom link
Speaker: Ethan Dyer, Google
Abstract: Neural networks exhibit systematic, empirically predictable, performance gains as a function of dataset and model size over many orders of magnitude. I will discuss recent work attempting to understand the origin of these neural scaling laws in deep neural networks and solvable models.
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Thursday, June 17th, 2021

NPAC (Nuclear/Particle/Astro/Cosmo) Forum
Detection of 12 potential PeVatrons by LHAASO and Implications for Galactic Neutrino Emission and Diffuse sub-PeV Gamma-ray Emission
Time: 10:00 am
Place: https://uwmadison.zoom.us/j/92121862473?pwd=aXJkSlJQQUhIT1EwcGdkMVNNQW1yUT09
Speaker: Ruoyu Liu, Nanjing University
Abstract: The Large High Altitude Air Shower Observatory (LHAASO) is a multi-component instrument for TeV-PeV gamma rays and TeV-EeV cosmic rays. Very recently, LHAASO published a list of 12 sources with detection of >100 TeV gamma rays at more than 7 sigma confidence level. I will introduce this result and discuss the implications for high-energy Galactic neutrino emission and Galactic diffuse sub-PeV gamma-ray emission. (https://www.nature.com/articles/s41586-021-03498-z, https://arxiv.org/abs/2104.05609)
Host: Lu Lu
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Cosmology Journal Club
Time: 12:00 pm
Place:
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:
https://uwmadison.zoom.us/j/93592708053?pwd=VWVNMDJXV2N1blV0emg4ZUg3ZGRiUT09
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Friday, June 18th, 2021

No events scheduled