Recent results from the NA62 experiment at CERN

The NA62 experiment at CERN SPS is designed to study the $K^+\to\pi^+\nu\bar\nu$ decay. After collecting data in 2016, 2017, and 2018, the experiment has resumed data taking in 2021 and has received approval for operations until the onset of Long Shutdown 3 in 2026. The first search for the lepton number violating decay $K^+\to\pi^0\pi^-\mu^+ e^+$ and lepton flavour violating decays $K^+\to\pi^0\pi^+\mu^+ e^-$ , $K^+\to\pi^0\pi^+\mu^- e^+$ is reported. More recent results from NA62 analyses of $K^+\to\pi^+\gamma\gamma$ and $\pi^0\to e^+e^-$ decay are also discussed. A search for heavy neutral lepton (N) production in $\pi^+\to e^+N$ decays using data collected by the NA62 experiment at CERN in 2017–2024 is reported. Additionally, the search for long-lived new physics particle hadronic decays in the data collected during the beam-dump mode in 2021 will be discussed.

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Publication Details

Published
2025-12-23
DOI
https://doi.org/10.22323/1.500.0022
Primary Topic
Particle physics theoretical and experimental studies
Type
article
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article

Recent results from the NA62 experiment at CERN

I. Rosa, EB Holzer, G. Ruggiero, B. Angelucci et al.
Particle physics theoretical and experimental studies
article

Recent results from the NA62 experiment at CERN

I. Rosa, EB Holzer, G. Ruggiero, B. Angelucci, M. Bragadireanu, T. Numao, Yu. Potrebenikov, S. Martellotti, R. Aliberti, I. Mannelli, B. Checcucci, D. Bryman, M. Raggi, E. Maurice, A. Tomczak, M. Corvino, G. Khoriauli, E. Cortina Gil, V. Ryjov, L. Iacobuzio, T. Blazek, V. Wong, A. Conovaloff, P. Valente, D. Coward, E. Pedreschi, B. Wrona, M. Barbanera, A. Fucci, K. Massri, F. Sargeni, M. Medvedeva, S. Shkarovskiy, A. Sergi, F. Petrucci, C. Cerri, O. Frezza, A. Khotyantsev, H. Danielsson, M. D’Errico, I. Panichi, R. Lollini, E. Gamberini, C. Biino, E. Lari, G. Lamanna, B. Bloch-Devaux, J. L. Fu, S. Ghinescu, M. Perrin-Terrin, R. Piandani, S. Venditti, Z. Kucerova, C. Graham, D. Britton, M. Koval, M. Vormstein, A. Sturgess, V. Falaleev, R. Giordano, F. Bucci, S. Kholodenko, J. Fry, V. Duk, V. Kurochka, M. Moulson, C. Parkinson, A. Baeva, P. Rubin, M. Sozzi, L. Bandiera, Y. Petrov, M. Mirra, D. Baigarashev, F. Marchetto, M. Boretto, A. Parenti, L. Federici, G. Tinti, A. Ostankov, Y. Kudenko, J. Bernhard, E. Minucci, P. Vicini, M. Pepe, F. Ambrosino, A. Salamon, K. Gorshanov, F. Hahn, P. Lichard, A. Gianoli, R. Guida, N. Molokanova, L. Bician, F. Duval, B. Dobrich, A. Mefodev, H. Wahl, G. Georgiev, P. Cretaro, A. Sadovsky, J. Engelfried, M.B. Brunetti, M. Giorgi, J. Sanders, V. Kozhuharov, N. Estrada-Tristan, A. Cotta Ramusino, T. Enik, A. Lonardo, Z. Hives, H. Heath, M. Reyes Santos, R. Page, T. Capussela, F. Gonnella, D. Soldi, G. Lanfranchi, G. D’Agostini, R. Wanke, N. Doble, G. Anzivino, A. Okhotnikov, C. Santoni, L. Peruzzo, D. Kereibay, V. Cerny, A. Briano Olvera, A. Bizzeti, A. Sytov, A. Zinchenko, R. Arcidiacono, S. Fedotov, M. Turisini, J. Pinzino, M. Romagnoni, E. Imbergamo, P. Lubrano, R. Ammendola, V. Fascianelli, B. Velghe, F. Spinella, A. Norton, V. Kekelidze, A. Kleimenova, V. Sugonyaev, A. Korotkova, R. Fiorenza, I. Neri, D. Di Filippo, E. Gushchin, N. De Simone, P. Cenci, P. Lo Chiatto, R. Marchevski, M. Piccini, V. Bonaiuto, V. Palladino, R. Fantechi, R.W. Jones, T. Husek, F. Costantini, V. Kurshetsov, E. Leonardi, P. Dalpiaz, P. Petrov, D. Protopopescu, L. Fulton, V. Obraztsov, A. Filippi, C. Kenworthy, L. Di Lella, N. Lurkin, T. Spadaro, M. Napolitano, I. Rosa, G. Latino, A. Mazzolari, F. Newson, P. Massarotti, L. Gatignon, M. Misheva, J. Carmignani, S. Movchan, E. Goudzovski, J. Kunze, B. Jenninger, A. Mapelli, A. Ceccucci, D. Madigozhin, M. Lupi, L. Pontisso, A. Shaikhiev, M. Noy, V. Semenov, P. Boboc, A. Antonelli, O. Yushchenko, J.B. Dainton, J. Jerhot, B. De Martino, J. Henshaw, S. Padolski, D. Hutchcroft, L. Litov, A. Akmete, M. Zamkovsky, O. Hutanu, J. Swallow, M. Soldani, I. Polenkevich, S. Schuchmann, K. Kampf, F. Brizioli, C. Lazzeroni, T. Bache, D. Lomidze, E. Iacopini, S. Giudici, P. Laycock, D. Emelyanov, M. Ceoletta, M. Lenti, R. Volpe, E. Menichetti, A. Romano, G. Saracino, G. Lehmann Miotto, S. Trilov, M. Fiorini, E. Migliore, P. Cooper, A. Biagioni
article en

Abstract

The NA62 experiment at CERN SPS is designed to study the $K^+\to\pi^+\nu\bar\nu$ decay. After collecting data in 2016, 2017, and 2018, the experiment has resumed data taking in 2021 and has received approval for operations until the onset of Long Shutdown 3 in 2026. The first search for the lepton number violating decay $K^+\to\pi^0\pi^-\mu^+ e^+$ and lepton flavour violating decays $K^+\to\pi^0\pi^+\mu^+ e^-$ , $K^+\to\pi^0\pi^+\mu^- e^+$ is reported. More recent results from NA62 analyses of $K^+\to\pi^+\gamma\gamma$ and $\pi^0\to e^+e^-$ decay are also discussed. A search for heavy neutral lepton (N) production in $\pi^+\to e^+N$ decays using data collected by the NA62 experiment at CERN in 2017–2024 is reported. Additionally, the search for long-lived new physics particle hadronic decays in the data collected during the beam-dump mode in 2021 will be discussed.

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Particle physics theoretical and experimental studies
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