CERN Accelerating science

Article
Title Search for $K^+$ decays to a lepton and invisible particles
Author(s)

Lurkin, Nicolas (Louvain U., CP3) ; Akmete, A (Mainz U.) ; Aliberti, R ; Ambrosino, F ; Ammendola, R ; Angelucci, B ; Antonelli, A ; Anzivino, G ; Arcidiacono, R ; Bache, T ; 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 ; Britton, D ; Brizioli, F ; Brunetti, M B ; Bryman, D ; Bucci, F ; Capussela, T ; Carmignani, J ; Ceccucci, A ; Cenci, P ; Cerny, V ; Cerri, C ; Checcucci, B ; Conovaloff, A ; Cooper, P ; Corvino, M ; Costantini, F ; Coward, D ; Cretaro, P ; D'Agostini, G ; Dainton, J ; Dalpiaz, P ; Danielsson, H ; D'Errico, M ; 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 ; Frezza, O ; 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, E B ; Husek, T ; Hutanu, O ; Hutchcroft, D ; Iacobuzio, L ; Iacopini, E ; Imbergamo, E ; Jenninger, B ; Jerhot, J ; Jones, R W ; Kampf, K ; Kekelidze, V ; Kerebay, D ; Kholodenko, S ; Khoriauli, G ; Khotyantsev, A ; Kleimenova, A ; Korotkova, A ; Koval, M ; Kozhuharov, V ; Kucerova, Z ; Kudenko, Y G ; Kunze, J ; Kurochka, V ; Kurshetsov, V ; Lanfranchi, G ; Lamanna, G ; Lari, E ; Latino, G ; Laycock, P ; Lazzeroni, C ; Lenti, M ; Leonardi, E ; Lichard, P ; Litov, L ; Lollini, R ; Lomidze, D ; Lonardo, A ; Lubrano, P ; Lupi, M ; Madigozhin, D ; Mannelli, I ; Mapelli, A ; Marchetto, F ; Marchevski, R ; Martellotti, S ; Massarotti, P ; Massri, K ; Maurice, E ; Mazzolari, A ; Medvedeva, M ; Mefodev, A ; Menichetti, E ; Migliore, E ; Minucci, E ; Mirra, M ; Misheva, M ; Molokanova, N ; Moulson, M ; Movchan, S ; Napolitano, M ; Neri, I ; Newson, F ; Norton, A ; Noy, M ; Numao, T ; Obraztsov, V ; Okhotnikov, A ; Ostankov, A ; Padolski, S ; page, R D ; Palladino, V ; Panichi, I ; Parenti, A ; Parkinson, C ; Pedreschi, E ; Pepe, M ; Perrin-Terrin, M ; Peruzzo, L ; Petrov, P ; Petrov, Y ; Petrucci, F ; Piandani, R ; Piccini, M ; Pinzino, J ; Polenkevich, I ; Pontisso, L ; Potrebenikov, Yu ; Protopopescu, D ; Raggi, M ; Romagnoni, M ; Romano, A ; Rubin, P ; Ruggiero, G ; Ryjov, V ; Sadovsky, A ; Salamon, A ; Santoni, C ; Saracino, G ; Sargeni, F ; Schuchmann, S ; Semenov, V ; Sergi, A ; Shaikhiev, A ; Shkarovskiy, S ; Soldani, M ; Soldi, D ; Sozzi, M ; Spadaro, T ; Spinella, F ; Sturgess, A ; Sugonyaev, V ; Swallow, J ; Sytov, A ; Tinti, G ; Tomczak, A ; Trilov, S ; Turisini, M ; Valente, P ; Velghe, B ; Venditti, S ; Vicini, P ; Volpe, R ; Vormstein, M ; Wahl, H ; Wanke, R ; Wong, V ; Wrona, B ; Yushchenko, O ; Zamkovsky, M ; Zinchenko, A ; Briano Olvera, A ; Cortina Gil, E ; Cotta Ramusino, A ; De Simone, N ; Di Filippo, D ; Di Lella, L ; Lehmann Miotto, G ; Lo Chiatto, P ; Reyes Santos, M

Publication Trieste : SISSA, 2022
Number of pages 6
In: PoS NuFact2021 (2022) 157
In: 22nd International Workshop on Neutrinos from Accelerators (NuFact 2021), Cagliari, Italy, 6 - 11 Sep 2021, pp.157
DOI 10.22323/1.402.0157 (publication)
Subject category Nuclear Physics - Experiment ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; NA62
Abstract Searches for heavy neutral leptons $N$ in the $K^+\to e^+N$ and $K^+\to \mu^+N$ decay channels using the dataset collected by the NA62 experiment at CERN between 2016-2018 are presented. Upper limits on the corresponding mixing matrix elements are reported at the level of $\mathcal{O}(10^{-9})$ and $\mathcal{O}(10^{-8})$, respectively. This represents an improvement of at least an order of magnitude on previous measurement, as well as an extension to higher masses than previously covered. Related searches set upper limits on the rate of the $K^+\to\mu^+\nu\nu\bar{\nu}$ and $K^+\to\mu^+\nu X$ decay channels, with $X$ an invisible scalar or vector boson.
Copyright/License publication: © Copyright owned by the author(s) (License: CC-BY-NC-ND-4.0)

Corresponding record in: Inspire


 記錄創建於2022-08-17,最後更新在2022-08-17


全文:
Download fulltext
PDF