ELFT HÍRADÓ

[tcsaba <tcsaba AT eik.bme.hu>]

                 M E G H Í V Ó - I N V I T A T I O N

    Seminar Series of the Department of Theoretical Physics at the
           Budapest University of Technology and Economics


                         Sándor Katz

       (Department of Theoretical Physics, Eötvös University)


               Axion cosmology from lattice QCD


The strong CP problem can be solved via the Peccei-Quinn mechanism. The 
resulting pseudo-Goldstone boson, the axion is a natural candidate for 
dark matter. In order to quantitatively understand axion dark matter 
production two important QCD inputs are required: the equation of state 
and the topological susceptibility at high temperatures. After reviewing 
the Peccei-Quinn mechanism and axion dark matter production in the early 
universe, recent lattice results on these quantities will be presented. 
They will be used to constrain the axion mass in different axion 
production scenarios.


Időpont: 2017. április 7. péntek, 10:15
Helyszín: BME Fizikai Intézet, Elméleti Fizika Tanszék,
Budafoki út 8. F-épület, III lépcsőház, szemináriumi szoba