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SUMMARY:New measurement of the $K^{+}\\rightarrow\\pi^{+}\\nu\\bar{\\nu}$ 
 decay at NA62
DTSTART:20260325T133000Z
DTEND:20260325T150000Z
DTSTAMP:20260506T192600Z
UID:indico-event-51327@agenda.infn.it
DESCRIPTION:Speakers: Joel Christopher Swallow (Istituto Nazionale di Fisi
 ca Nucleare)\n\nThe $K^{+}\\rightarrow\\pi^{+}\\nu\\bar{\\nu}$ decay is a 
 golden mode for flavour physics. Using data collected in 2016–2022 NA62 
 announced the first observation of this decay with a signal significance 
 above 5 sigma and the measurement $\\mathcal{B}(K^{+}\\rightarrow\\pi^{+}\
 \nu\\bar{\\nu})=(13.0^{+3.3}_{-3.0})\\times10^{-11}$. New results from the
  analysis of the 2023–2024 dataset are presented. This dataset doubles t
 he effective sample size. Reconstruction and selection algorithms have be
 en improved\, boosting sensitivity and reducing the background contaminat
 ion.  An updated measurement of the $K^{+}\\rightarrow\\pi^{+}\\nu\\bar{\
 \nu}$ branching ratio is presented and prospects for the full 2016–2026 
 dataset are discussed. A summary of other recent NA62 results will also be
  presented.\n\nhttps://agenda.infn.it/event/51327/
LOCATION:Aula Touschek (Laboratori Nazionali di Frascati)
URL:https://agenda.infn.it/event/51327/
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