Does the H_0 tension suggest a new physics?
“KMI colloquium” 27th January (Wed) 17:00-
Speaker :Tomo Takahashi (Saga University)
Title : Does the H_0 tension suggest a new physics?
Poster : Colloquium_Takahashi_20210127
The Hubble-Lemaître constant H_0 is one of the most important cosmological parameters,
however it is now widely argued that there is a tension between the value of H_0 measured
by cosmic microwave background and the one obtained from local direct measurements,
which is called the H_0 tension. First I briefly review the current status of the tension, and
then discuss the attempts to solve it, particularly focusing on its implications to new
physics. I also argue that the tension can also give an impact on other cosmological issues
such as cosmological bound on neutrino masses. Some general conditions to solve the
tension are also to be discussed.
The colloquium will be held via ZOOM.