TY - JOUR
T1 - First search for K + →π + νν̅ using the decay-in-flight technique
AU - NA62 Collaboration
AU - Cortina Gil, E.
AU - Minucci, E.
AU - Padolski, S.
AU - Petrov, P.
AU - Velghe, B.
AU - Georgiev, G.
AU - Kozhuharov, V.
AU - Litov, L.
AU - Numao, T.
AU - Bryman, D.
AU - Fu, J.
AU - Husek, T.
AU - Kampf, K.
AU - Zamkovsky, M.
AU - Aliberti, R.
AU - Khoriauli, G.
AU - Kunze, J.
AU - Lomidze, D.
AU - Marchevski, R.
AU - Peruzzo, L.
AU - Vormstein, M.
AU - Wanke, R.
AU - Dalpiaz, P.
AU - Fiorini, M.
AU - Gamberini, E.
AU - Neri, I.
AU - Norton, A.
AU - Petrucci, F.
AU - Wahl, H.
AU - Cotta Ramusino, A.
AU - Gianoli, A.
AU - Iacopini, E.
AU - Latino, G.
AU - Lenti, M.
AU - Bizzeti, A.
AU - Bucci, F.
AU - Duk, V.
AU - Brunetti, M. B.
AU - Fascianelli, V.
AU - Gonnella, F.
AU - Goudzovski, E.
AU - Iacobuzio, L.
AU - Lazzeroni, C.
AU - Lurkin, N.
AU - Newson, F.
AU - Parkinson, C.
AU - Romano, A.
AU - Sergi, A.
AU - Sturgess, A.
AU - Swallow, J.
PY - 2019/4/10
Y1 - 2019/4/10
N2 - The NA62 experiment at the CERN SPS reports the first search for K + →π + νν̅ using the decay-in-flight technique, based on a sample of 1.21×10 11 K + decays collected in 2016. The single event sensitivity is 3.15×10 −10 , corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10 −10 on the K + →π + νν̅ branching ratio at 95% CL.
AB - The NA62 experiment at the CERN SPS reports the first search for K + →π + νν̅ using the decay-in-flight technique, based on a sample of 1.21×10 11 K + decays collected in 2016. The single event sensitivity is 3.15×10 −10 , corresponding to 0.267 Standard Model events. One signal candidate is observed while the expected background is 0.152 events. This leads to an upper limit of 14×10 −10 on the K + →π + νν̅ branching ratio at 95% CL.
UR - http://www.scopus.com/inward/record.url?scp=85062332112&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2019.01.067
DO - 10.1016/j.physletb.2019.01.067
M3 - Article
AN - SCOPUS:85062332112
SN - 0370-2693
VL - 791
SP - 156
EP - 166
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -