Events at Physics |
Events During the Week of November 29th through December 6th, 2026
Sunday, November 29th, 2026
- Academic Calendar
- Thanksgiving Recess
- Abstract: *Note: actual end time may vary.* CONTACT: admin@secfac.wisc.edu
Monday, November 30th, 2026
- Plasma Physics (Physics/ECE/NE 922) Seminar
- Title to be announced
- Time: 12:00 pm - 1:00 pm
- Place: 2241 Chamberlin Hall
- Speaker: Sara Ferry, Massachusetts Institute of Technology
- Host: Rogerio Jorge
- Preliminary Exam
- IceCube and Neutrino Astronomy
- Time: 2:00 pm - 4:00 pm
- Place: Chamberlin 5280
- Speaker: Chen Li
- Abstract: Recent IceCube observations of active galaxies, namely NGC 1068, TXS 0506+056, NGC 4151, CGCG 420-015, NGC 7469 and the Circinus Galaxy, provide compelling evidence for high-energy neutrino production within the innermost regions ($\lesssim 10$ gravitational radii) of supermassive black holes (SMBHs) embedded in the corona region, a dense, X-ray-emitting plasma. In the corona region, protons accelerated near the SMBH interact $0.1 - 1\text{ keV}$ X-rays via $\Delta$-resonance photoproduction and $pp$ interaction to generate neutrinos. At the same time, the X-ray radiation field attenuates the gamma-ray flux produced by neutral pion decay. Finally, we evaluate the hypothesis that such gamma-ray-obscured nuclei constitute the primary population responsible for the diffuse neutrino flux.
- Host: Francis Halzen
Tuesday, December 1st, 2026
- Council Meeting
- Physics Council Meeting
- Time: 2:00 pm - 3:00 pm
- Place: 2314 Chamberlin
- Speaker: Kevin Black, UW-Madison
- Host: Kevin Black
Wednesday, December 2nd, 2026
- Department Meeting
- Time: 12:15 pm - 1:30 pm
- Place: B343 Sterling
- Speaker: Kevin Black, UW - Madiosn
- Host: Kevin Black
Thursday, December 3rd, 2026
- R. G. Herb Condensed Matter Seminar
- TBD
- Time: 10:00 am
- Place: 5310 Chamberlin Hall
- Speaker: Victor Galitski, UMD
- Host: Alex Levchenko
Friday, December 4th, 2026
- Physics Department Colloquium
- Title to be announced
- Time: 3:30 pm - 4:30 pm
- Place: Chamberlin 2241 -
- Host: Alex Levchenko