2022 Spring Seminar List

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== Spring 2022 LeCosPA Cosmology and Particle Astrophysics Seminars ==

Location : Room 7S1, LeCosPA center, NTU
if participants more than 20, we will change the lecture room from 7S1 to Room 7W3

Time : 11:00 am - 12:00 am, Monday

Organizers : Naoki Watamura; TsungChe Liu

Date Name Title Affiliation File
Jan. 24
Prof. Eiichiro Komatsu
Hunting for Parity-violating Physics in Polarisation of the Cosmic Microwave Background
Polarised light of the cosmic microwave background, the remnant light of the Big Bang, is sensitive to parity-violating physics. In this presentation we report on a measurement of parity violation from polarisation data of the European Space Agency (ESA)’s Planck satellite. The statistical significance of the measured signal is 2.4 sigma. If confirmed with higher statistical significance in future, it would have important implications for the elusive nature of dark matter and dark energy. We also report on a new measurement from the latest Planck public data release 4.

Max Planck Institute for Astrophysics, Germany



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