Searches for heavy neutral lepton production at the NA62 experiment

Collapse authors list.
Parkinson, CJ, Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T et al (show 90 more authors) , Baeva, A, Baigarashev, D, Bandiera, L, Barbanera, M, Bernhard, J, Biagioni, A, Bician, L, Biino, C, Bizzeti, A, Blazek, T, Bloch-Devaux, B, Boboc, P, Bonaiuto, V, Boretto, M, Bragadireanu, M, Briano Olvera, A, Britton, D, Brizioli, F, Brunetti, MB, Bryman, D, Bucci, F, Capussela, T, Carmignani, J, Ceccucci, A, Cenci, P, Cerny, V, Cerri, C, Checcucci, B, Conovaloff, A, Cooper, P, Cortina Gil, E, Corvino, M, Costantini, F, Cotta Ramusino, A, Coward, D, D'Agostini, G, Dainton, J, Dalpiaz, P, Danielsson, H, D'Errico, M, De Simone, N, Di Filippo, D, Di Lella, L, Doble, N, Dobrich, B, Duval, F, Duk, V, Emelyanov, D, Engelfried, J, Enik, T, Estrada-Tristan, N, Falaleev, V, Fantechi, R, Fascianelli, V, Federici, L, Fedotov, S, Filippi, A, Fiorenza, R, Fiorini, M, Fry, J, Fu, J, Fucci, A, Fulton, L, Gamberini, E, Gatignon, L, Georgiev, G, Ghinescu, S, Gianoli, A, Giorgi, M, Giudici, S, Gonnella, F, Gorshanov, K, Goudzovski, E, Graham, C, Guida, R, Gushchin, E, Hahn, F, Heath, H, Henshaw, J, Hives, Z, Holzer, EB, Husek, T, Hutanu, O, Hutchcroft, D ORCID: 0000-0002-4174-6509, Iacobuzio, L, Iacopini, E, Imbergamo, E, Jenninger, B, Jerhot, J and Jones, RW (2021) Searches for heavy neutral lepton production at the NA62 experiment. .

Access the full-text of this item by clicking on the Open Access link.

Abstract

Searches for heavy neutral lepton production in K+ ? e+N and K+ ? µ+N decays using the data set collected by the NA62 experiment at CERN in 2016-18 are presented. Upper limits on the elements of the extended neutrino mixing matrix and are established at the levels of 10-9 and 10-8, respectively, improving on the earlier searches for heavy neutral lepton production and decays in the kinematically accessible mass range. Searches for the K+ ? µ+vvv and K+ ? µ+vX decays, where X is a new light invisible particle, are also reported.

Item Type:	Conference or Workshop Item (Unspecified)
Depositing User:	Symplectic Admin
Date Deposited:	13 Oct 2022 16:38
Last Modified:	18 Jan 2023 20:36
Open Access URL:	https://pos.sissa.it/398/686/pdf
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3165441