Physics Colloquium: Where is all the antimatter? Understanding neutrinos and their implications with T2K

Prof. Federico Sanchez, University of Geneva

07 June 2020, 14:00 
Zoom: https://zoom.us/j/97115709185 
Physics Colloquium

Zoom: https://zoom.us/j/97115709185

 

Abstract: 

​​The T2K Collaboration has published recently in Nature very exciting results showing the strongest constraint yet on the parameter that governs the breaking of the symmetry between matter and antimatter using neutrino oscillations. T2K has studied how beams of muon neutrinos and antineutrinos transition into electron neutrinos and electron antineutrinos, respectively. The parameter governing the matter/antimatter symmetry breaking in neutrino oscillation, called δcp phase, can take a value from -180º to 180º. For the first time, T2K has disfavored almost half of the possible values at the 99.7% confidence level. This outstanding result is starting to reveal a basic property of neutrinos that have not been measured until now.  This is an important step on the way to knowing whether or not neutrinos and antineutrinos behave differently.  But, what are neutrinos? what are neutrino oscillations? how was the experiment performed? I will try to answer these questions and give small inside about the fascinating research with neutrinos.

 

 

Event Organizer: Prof. Tomer Volansky

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