First search for K + →π + νν̅ using the decay-in-flight technique

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First search for K + →π + νν̅ using the decay-in-flight technique. / NA62 Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 791, 10.04.2019, p. 156-166.

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@article{faadc81a31fc44b68de336c4157a2d04,
title = "First search for K + →π + νν̅ using the decay-in-flight technique",
abstract = " 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. ",
author = "{NA62 Collaboration} and {Cortina Gil}, E. and E. Minucci and S. Padolski and P. Petrov and B. Velghe and G. Georgiev and V. Kozhuharov and L. Litov and T. Numao and D. Bryman and J. Fu and T. Husek and K. Kampf and M. Zamkovsky and R. Aliberti and G. Khoriauli and J. Kunze and D. Lomidze and R. Marchevski and L. Peruzzo and M. Vormstein and R. Wanke and P. Dalpiaz and M. Fiorini and E. Gamberini and I. Neri and A. Norton and F. Petrucci and H. Wahl and {Cotta Ramusino}, A. and A. Gianoli and E. Iacopini and G. Latino and M. Lenti and A. Bizzeti and F. Bucci and V. Duk and Brunetti, {M. B.} and V. Fascianelli and F. Gonnella and E. Goudzovski and L. Iacobuzio and C. Lazzeroni and N. Lurkin and F. Newson and C. Parkinson and A. Romano and A. Sergi and A. Sturgess and J. Swallow",
year = "2019",
month = apr,
day = "10",
doi = "10.1016/j.physletb.2019.01.067",
language = "English",
volume = "791",
pages = "156--166",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier",

}

RIS

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

VL - 791

SP - 156

EP - 166

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -