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SUMMARY:Hints of non-unitarity in the present T2K and NO$\\nu$A data
DTSTART;VALUE=DATE-TIME:20200227T121000Z
DTEND;VALUE=DATE-TIME:20200227T123000Z
DTSTAMP;VALUE=DATE-TIME:20260913T151416Z
UID:indico-contribution-1452@indico.tlabs.ac.za
DESCRIPTION:Speakers: Ushak Rahaman (University of Johannesburg)\nThe mixi
 ng of three neutrino flavours is parameterised by the unitary\nPMNS matrix
 . If there are more than three neutrino flavours\, effective $3\\times 3$ 
 neutrino mixing\nmatrix will be non-unitary. In this paper\, we have analy
 sed the \nlatest T2K and NO$\\nu$A data with the hypothesis of non-unitary
  mixing matrix.\nPresent results from NO$\\nu$A and T2K collaboration have
  tension between them as NO$\\nu$A disfavours T2K\nbest-fit point at $1\\\
 , \\sigma$ confidence level and vice versa. In this paper we have shown th
 at latest data from both the\nexperiments disfavour unitary $3\\times 3$ m
 ixing at $60\\%$ C.L. The combined analysis disfavours unitary mixing\nat 
 $1\\\, \\sigma$ C.L. Moreover\, the tension between two experiments can al
 so be reduced with the non-unitary approach.\n\nhttps://indico.tlabs.ac.za
 /event/85/contributions/1452/
LOCATION:Main Venue
URL:https://indico.tlabs.ac.za/event/85/contributions/1452/
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