The seminar of the Astro & Theory Section takes place normally Tuesdays in D5-106, starting at 14.15. If you would like to suggest a seminar speaker or want to be added to the email list, please contact the organizer ( RaphaelRaphael.Mignon-Risse@ntnu.no and Michael.Kachelriess@ntnu.no).
The (planned) seminars in 2024 are
...
- 25.06. Paul Lai (University College London): Tracking the gas distribution in the Galactic Centre using neutrinos and Alisha Roberts (IFY, NTNU): Investigating Neutrino Emissions from Blazar 3C 454.3
- tbd. Jens Oluf Andersen (IFY, NTNU): Pion condensation and pion stars
Abstract: In this talk I will discuss pion condensation in the context of two and three-flavor chiral perturbation theory. I will present results for quark and pion condensates as functions of the isospin chemical potential. The results compare favorably to those of lattice QCD. As an application, I will discuss pion condensation in a dense neutrino cloud and the possibility of pion stars. These are compact objects with a mass up to 20 solar masses and radii of up to 140km.
...