ELFT HÍRADÓ

[szpl <szpl AT metal.elte.hu>]

ELTE Fizikai Intézet

                                ORTVAY KOLLOKVIUM

                    2016. március 17., csütörtök, 15:00-kor
                Az ELTE Pázmány Péter s. 1/A alatti épületében
                           földszinti 0.81 előadóban

        Christian Hoelbling (Universität Wuppertal, Németország)

"The proton-neutron mass difference and the stability of ordinary matter"

Kivonatos ismertetés:
Most of the mass of the visible universe is a consequence of the dynamics of 
the strong nuclear force. Through a steady progress in the understanding of 
this nonperturbative phenomenon over the last decade, we have gained increasing
insight into the details of this mechanism. The numerical solution of the 
theories of the strong nuclear force, quantum chromodynamics (QCD), and the 
electromagnetic force (QED) have recently provided us with a quantitative 
understanding of even the permil level difference of the masses of protons 
and neutrons, which is fundamental for the existence and stability of the 
universe as we know it. In this talk, I will present these calculations and 
discuss their implications on the question of how finely tuned our universe 
really is.