TY - JOUR
T1 - Measurement of the very rare K+ → π+νν¯ decay
AU - The NA62 Collaboration
AU - Zamkovský, Michal
AU - Aliberti, R.
AU - Ambrosino, F.
AU - Ammendola, R.
AU - Angelucci, B.
AU - Antonelli, A.
AU - Anzivino, G.
AU - Arcidiacono, R.
AU - Bache, T.
AU - Baeva, A.
AU - Baigarashev, D.
AU - Barbanera, M.
AU - Bernhard, J.
AU - Biagioni, A.
AU - Bician, L.
AU - Biino, C.
AU - Bizzeti, A.
AU - Blazek, T.
AU - BlochDevaux, B.
AU - Bonaiuto, V.
AU - Boretto, M.
AU - Bragadireanu, M.
AU - Britton, D.
AU - Brizioli, F.
AU - Brunetti, M. B.
AU - Bryman, D.
AU - Bucci, F.
AU - Capussela, T.
AU - Carmignani, J.
AU - Ceccucci, A.
AU - Cenci, P.
AU - Cerny, V.
AU - Cerri, C.
AU - Checcucci, B.
AU - Conovaloff, A.
AU - Cooper, P.
AU - Cortina Gil, E.
AU - Corvino, M.
AU - Costantini, F.
AU - Cotta Ramusino, A.
AU - Coward, D.
AU - D'Agostini, G.
AU - Dainton, J.
AU - Dalpiaz, P.
AU - Danielsson, H.
AU - De Simone, N.
AU - Di Filippo, D.
AU - Di Lella, L.
AU - Doble, N.
AU - Maurice, E.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - The decay K+ → π+νν¯, with a very precisely predicted branching ratio of less than 10−10, is among the best processes to reveal indirect effects of new physics. The NA62 experiment at CERN SPS is designed to study the K+ → π+νν¯ decay and to measure its branching ratio using a decay-in-flight technique. NA62 took data in 2016, 2017 and 2018, reaching the sensitivity of the Standard Model for the K+ → π+νν¯ decay by the analysis of the 2016 and 2017 data, and providing the most precise measurement of the branching ratio to date by the analysis of the 2018 data. This measurement is also used to set limits on BR(K+ → π+X), where X is a scalar or pseudo-scalar particle. The final result of the BR(K+ → π+νν¯) measurement and its interpretation in terms of the K+ → π+X decay from the analysis of the full 2016-2018 data set is presented, and future plans and prospects are reviewed.
AB - The decay K+ → π+νν¯, with a very precisely predicted branching ratio of less than 10−10, is among the best processes to reveal indirect effects of new physics. The NA62 experiment at CERN SPS is designed to study the K+ → π+νν¯ decay and to measure its branching ratio using a decay-in-flight technique. NA62 took data in 2016, 2017 and 2018, reaching the sensitivity of the Standard Model for the K+ → π+νν¯ decay by the analysis of the 2016 and 2017 data, and providing the most precise measurement of the branching ratio to date by the analysis of the 2018 data. This measurement is also used to set limits on BR(K+ → π+X), where X is a scalar or pseudo-scalar particle. The final result of the BR(K+ → π+νν¯) measurement and its interpretation in terms of the K+ → π+X decay from the analysis of the full 2016-2018 data set is presented, and future plans and prospects are reviewed.
UR - https://www.scopus.com/pages/publications/85139974042
M3 - Conference article
AN - SCOPUS:85139974042
SN - 1824-8039
VL - 405
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 070
T2 - 7th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2020-2021
Y2 - 29 November 2021 through 3 December 2021
ER -