Network in Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS) Seminars |
Events During the Week of February 14th through February 21st, 2021
Monday, February 15th, 2021
- No events scheduled
Tuesday, February 16th, 2021
- Hydrogen Mixing and the EDGES Anomaly
- Time: 2:00 pm
- Place:
- Speaker: Luke Johns, UC-Berkeley
- Abstract: In 2018 the EDGES collaboration announced a detection of 21 cm hyperfine absorption at redshifts between about 15 and 20. The signal may indicate that the hydrogen gas at cosmic dawn was significantly colder than predicted. I'll describe a new scenario that might solve the mystery: hydrogen oscillates into a mirror state over the course of the cosmic dark ages, leaving the remnant gas cooled and the anomaly imprinted. This proposal differs markedly from other BSM scenarios in both the relevant microphysics and the implications for model building and cosmology.
- Host: Baha Balantekin
Wednesday, February 17th, 2021
- No events scheduled
Thursday, February 18th, 2021
- No events scheduled
Friday, February 19th, 2021
- No events scheduled