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SUMMARY:[NAPP Seminar] Exploratory lattice QCD study of the rare kaon deca
 y K+ -> pi+ nu nu-bar
DTSTART;VALUE=DATE-TIME:20161006T070000Z
DTEND;VALUE=DATE-TIME:20161006T080000Z
DTSTAMP;VALUE=DATE-TIME:20261113T083232Z
UID:indico-event-18@sshep.snu.ac.kr
DESCRIPTION:* Speaker : Prof. Xu Feng (Peking University)\n\n* Abstract :\
 nAfter the discovery of the Higgs boson\, physicists keep searching for Ne
 w Physics in cosmic\, energy and intensity frontiers. In the intensity fro
 ntier\, a key stone is to provide precise Standard Model prediction by con
 trolling the uncertainty from low energy QCD. Lattice QCD has been develop
 ed to tackle the nonperturbative problems in low energy QCD. It has been d
 emonstrated to be a powerful tool in dealing with the ''standard'' observa
 bles such as the hadron spectra and decay constants. To meet the requireme
 nt of future experiments in the intensity frontier\, we need to study more
  complicated system beyond standard. Rare kaon decay is such an example. T
 he cleanliness of the Standard Model predication of the branching ratio fo
 r the rare kaon decays K^+ -> pi^+ nu nu-bar and K_L -> pi^0 nu nu-bar mak
 e them an ideal place to search for New Physics. The CERN NA62 experiment 
 aims for an observation of O(100) events of K^+ -> pi^+ nu nu-bar decay an
 d a 10%-precision measurement of the branching ratio. The KOTO experiment 
 at J-PARC in Japan is designed to search for the CP-violating decay K_L ->
  pi^0 nu nu-bar. In this talk I will present an exploratory study of the l
 ong-distance contributions to the K+ -> pi+ nu nu-bar decay amplitude from
  first principles using lattice QCD. Such study is necessary to interpret 
 future experiments at a 10% precision or better.\n\nhttps://sshep.snu.ac.k
 r/event/18/
LOCATION:B56 521
URL:https://sshep.snu.ac.kr/event/18/
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