Wednesday 26 February 2014 

Speaker: Lorena Escudero (IFIC/CSIC/Valencia)


Title: "Latest (and future) oscillation results 
        from the T2K experiment" 

Abstract: The Tokai to Kamioka (T2K) experiment located 
in Japan is the first off-axis long-baseline neutrino 
oscillation experiment. It consists of a highly pure 
muon neutrino beam generated at the J-PARC accelerator 
complex. The beam is characterized by the near detectors, 
placed at 280 meters from the neutrino production target, 
and directed towards the Super-Kamiokande water Cherenkov 
detector, situated 295 km away with a 2.5º off-axis 
configuration.Since 2010 T2K has accumulated 6.57E20 protons 
on target and observed 120 muon neutrino candidates and 
28 electron neutrino candidates. With this dataset, T2K 
has published the world's most stringent limits on muon 
neutrino disappearance and the strongest evidence of 
electron neutrino appearance from a muon neutrino beam 
up to date. Furthermore, T2K will be soon releasing its 
first joint 3-flavour neutrino oscillation analysis 
combining the muon neutrino disappearance and electron 
neutrino appearance channels. Preliminary results of 
the first T2K joint oscillation analysis will be 
presented in this seminar.