ELFT HÍRADÓ

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

ELTE Fizikai Intézet

                            ORTVAY KOLLOKVIUM
                                
                    2011. május 19., csütörtök, 15 órakor
                Az ELTE Pázmány Péter s. 1/A alatti épületében
                        a földszinti 0.81 előadóban
  
		Yosef Nir (Weizmann Institut of Science)
                            "Leptogenesis"
                        /Marx memorial lecture/

Kivonatos ismertetés:
All structures in the Universe seem to be made of matter (protons, 
neutrons and electrons), while all antimatter (antiprotons, antineutrons 
and positrons) has disappeared. The standard model explains the 
disappearance of antimatter, but its prediction for the amount of matter 
is many orders of magnitude below the observed value. Thus, there must be 
interactions in Nature beyond those of the standard model which distinguish 
between matter and antimatter in a much stronger way. The most attractive 
scenario is that of leptogenesis, where the matter-antimatter asymmetry is 
related to the recently discovered neutrino masses. I will review the basic 
mechanism of leptogenesis, the implications, and the prospects of future tests.