Events at Physics |
Events on Tuesday, April 4th, 2023
- Academic Calendar
- Election Day In Wisconsin, including same-day registration
- Time: 7:00 am - 8:00 pm
- Abstract: Wisconsin Election for Supreme Court, Mayor, Alders, School Board, and Judges.. Statewide Office: Supreme Court. Local Offices: School Board, Mayor, Alders, and Judges. Go to MyVote.wi.gov to find your polling place, see what is on your ballot, and check your registration. If you are not registered at your current address, you can register at your assigned polling place on Election Day. See vote.wisc.edu for information on registration, and voter ID. CONTACT: malischke@yahoo.com URL:
- Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminar
- Constraints on axion-like polarization oscillations in the CMB with POLARBEAR
- Time: 2:00 pm - 3:00 pm
- Place: Meeting ID: 912 3071 4547 NOTE: All participants and hosts are now required to sign into a Zoom account prior to joining meetings hosted by UC Berkeley.
- Speaker: Jacob Spisak, UCSD
- Abstract: Very light pseudoscalar fields, often referred to as axions, are compelling dark matter candidates and can potentially be detected through their coupling to the electromagnetic field. Recently a novel detection technique using the cosmic microwave background (CMB) was proposed, which relies on the fact that the axion field oscillates at a frequency equal to its mass in appropriate units, leading to a time-dependent birefringence. For appropriate oscillation periods this allows the axion field at the telescope to be detected via the induced sinusoidal oscillation of the CMB linear polarization. I will discuss how we search for this effect using the POLARBEAR telescope and the constraints we place.
Zoom Meeting
Meeting ID: 912 3071 4547
NOTE: All participants and hosts are now required to sign into a Zoom account prior to joining meetings hosted by UC Berkeley. - Host: Baha Balantekin