Search for K+ decays into the π+e+e-e+e- final state
Gil, E. Cortina; Kleimenova, Alina; Minucci, E.; Padolski, S.; Petrov, P.; Shaikhiev, A.; Volpe, R.; Numao, T.; Petrov, Y.; Velghe, B.; Wong, V. W. S.; Bryman, D.; Fu, J.; Hives, Z.; Husek, T.; Jerhot, J.; Kampf, K.; Zamkovsky, M.; De Martino, B.; Perrin-Terrin, M.; Akmete, A. T.; Aliberti, R.; Khoriauli, G.; Kunze, J.; Lomidze, D.; Peruzzo, L.; Vormstein, M.; Wanke, R.; Dalpiaz, P.; Fiorini, M.; Mazzolari, A.; Neri, I.; Norton, A.; Petrucci, F.; Soldani, M.; Wahl, H.; Bandiera, L.; Ramusino, A. Cotta; Gianoli, A.; Romagnoni, M.; Sytov, A.; Iacopini, E.; Latino, G.; Lenti, M.; Lo Chiatto, P.; Panichi, I.; Parenti, A.; Bizzeti, A.; Bucci, F.; Antonelli, A.; Georgiev, G.; Kozhuharov, V.; Lanfranchi, G.; Martellotti, S.; Moulson, M.; Spadaro, T.; Tinti, G.; Ambrosino, F.; Capussela, T.; Corvino, M.; D'Errico, M.; Di Filippo, D.; Fiorenza, R.; Giordano, R.; Massarotti, P.; Mirra, M.; Napolitano, M.; Rosa, I.; Anzivino, G.; Brizioli, F.; Imbergamo, E.; Lollini, R.; Piandani, R.; Santoni, C.; Barbanera, M.; Cenci, P.; Checcucci, B.; Lubrano, P.; Lupi, M.; Pepe, M.; Piccini, M.; Costantini, F.; Di Lella, L.; Doble, N.; Giorgi, M.; Giudici, S.; Lamanna, G.; Lari, E.; Pedreschi, E.; Sozzi, M.; Cerri, C.; Fantechi, R.; Pontisso, L.; Spinella, F.; Mannelli, I.; D'Agostini, G.; Raggi, M.; Biagioni, A.; Cretaro, P.; Frezza, O.; Leonardi, E.; Lonardo, A.; Turisini, M.; Valente, P.; Vicini, P.; Ammendola, R.; Bonaiuto, V.; Fucci, A.; Salamon, A.; Sargeni, F.; Arcidiacono, R.; Bloch-Devaux, B.; Boretto, M.; Menichetti, E.; Migliore, E.; Soldi, D.; Biino, C.; Filippi, A.; Marchetto, F.; Briano Olvera, A.; Engelfried, J.; Estrada-Tristan, N.; Reyes Santos, M. A.; Boboc, P.; Bragadireanu, A. M.; Ghinescu, S. A.; Hutanu, O. E.; Bician, L.; Blazek, T.; Cerny, V.; Kucerova, Z.; Bernhard, J.; Ceccucci, A.; Ceoletta, M.; Danielsson, H.; De Simone, N.; Duval, F.; Dobrich, B.; Federici, L.; Gamberini, E.; Gatignon, L.; Guida, R.; Hahn, F.; Holzer, E. B.; Jenninger, B.; Koval, M.; Laycock, P.; Miotto, G. Lehmann; Lichard, P.; Mapelli, A.; Marchevski, Radoslav; Massri, K.; Noy, M.; Palladino, V.; Pinzino, J.; Ryjov, V.; Schuchmann, S.; Venditti, S.; Bache, T.; Brunetti, M. B.; Duk, V.; Fascianelli, V.; Fry, J. R.; Gonnella, F.; Goudzovski, E.; Henshaw, J.; Iacobuzio, L.; Kenworthy, C.; Lazzeroni, C.; Lurkin, N.; Newson, F.; Parkinson, C.; Romano, A.; Sanders, J.; Sergi, A.; Sturgess, A.; Swallow, J.; Tomczak, A.; Heath, H.; Page, R.; Trilov, S.; Angelucci, B.; Britton, D.; Graham, C.; Protopopescu, D.; Carmignani, J.; Dainton, J. B.; Jones, R. W. L.; Ruggiero, G.; Fulton, L.; Hutchcroft, D.; Maurice, E.; Wrona, B.; Conovaloff, A.; Cooper, P.; Coward, D.; Rubin, P.; Baeva, A.; Baigarashev, D.; Emelyanov, D.; Enik, T.; Falaleev, V.; Fedotov, S.; Gorshanov, K.; Gushchin, E.; Kekelidze, V.; Kereibay, D.; Kholodenko, S.; Khotyantsev, A.; Korotkova, A.; Kudenko, Y.; Kurochka, V.; Kurshetsov, V.; Litov, L.; Madigozhin, D.; Medvedeva, M.; Mefodev, A.; Misheva, M.; Molokanova, N.; Movchan, S.; Obraztsov, V.; Okhotnikov, A.; Ostankov, A.; Polenkevich, I.; Potrebenikov, Yu.; Sadovskiy, A.; Semenov, V.; Shkarovskiy, S.; Sugonyaev, V.; Yushchenko, O.; Zinchenko, A.; NA62 Collaboration
2023
Abstract
The first search for ultra-rare K+ decays into the pi(+)e(+)e(-) e(+) e(-) final state is reported, using a dataset collected by the NA62 experiment at CERN in 2017-2018. An upper limit of 1.4x10(-8) at 90% CL is obtained for the branching ratio of the K+ -> pi(+) e(+)e(-)e(+)e(-) decay, predicted in the Standard Model to be (7.2 +/- 0.7) x10(-11). Upper limits at 90% CL are obtained at the level of 10(-9) for the branching ratios of two prompt decay chains involving pair-production of hidden-sector mediators: K+. pi(+) aa, a -> e(+)e(-) and K+ -> pi(+) S, S -> A' A', A' -> e(+) e(-). (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).
Details
Title
Search for K+ decays into the π+e+e-e+e- final state
Author(s)
Gil, E. Cortina ; Kleimenova, Alina ; Minucci, E. ; Padolski, S. ; Petrov, P. ; Shaikhiev, A. ; Volpe, R. ; Numao, T. ; Petrov, Y. ; Velghe, B. ; Wong, V. W. S. ; Bryman, D. ; Fu, J. ; Hives, Z. ; Husek, T. ; Jerhot, J. ; Kampf, K. ; Zamkovsky, M. ; De Martino, B. ; Perrin-Terrin, M. ; Akmete, A. T. ; Aliberti, R. ; Khoriauli, G. ; Kunze, J. ; Lomidze, D. ; Peruzzo, L. ; Vormstein, M. ; Wanke, R. ; Dalpiaz, P. ; Fiorini, M. ; Mazzolari, A. ; Neri, I. ; Norton, A. ; Petrucci, F. ; Soldani, M. ; Wahl, H. ; Bandiera, L. ; Ramusino, A. Cotta ; Gianoli, A. ; Romagnoni, M. ; Sytov, A. ; Iacopini, E. ; Latino, G. ; Lenti, M. ; Lo Chiatto, P. ; Panichi, I. ; Parenti, A. ; Bizzeti, A. ; Bucci, F. ; Antonelli, A. ; Georgiev, G. ; Kozhuharov, V. ; Lanfranchi, G. ; Martellotti, S. ; Moulson, M. ; Spadaro, T. ; Tinti, G. ; Ambrosino, F. ; Capussela, T. ; Corvino, M. ; D'Errico, M. ; Di Filippo, D. ; Fiorenza, R. ; Giordano, R. ; Massarotti, P. ; Mirra, M. ; Napolitano, M. ; Rosa, I. ; Anzivino, G. ; Brizioli, F. ; Imbergamo, E. ; Lollini, R. ; Piandani, R. ; Santoni, C. ; Barbanera, M. ; Cenci, P. ; Checcucci, B. ; Lubrano, P. ; Lupi, M. ; Pepe, M. ; Piccini, M. ; Costantini, F. ; Di Lella, L. ; Doble, N. ; Giorgi, M. ; Giudici, S. ; Lamanna, G. ; Lari, E. ; Pedreschi, E. ; Sozzi, M. ; Cerri, C. ; Fantechi, R. ; Pontisso, L. ; Spinella, F. ; Mannelli, I. ; D'Agostini, G. ; Raggi, M. ; Biagioni, A. ; Cretaro, P. ; Frezza, O. ; Leonardi, E. ; Lonardo, A. ; Turisini, M. ; Valente, P. ; Vicini, P. ; Ammendola, R. ; Bonaiuto, V. ; Fucci, A. ; Salamon, A. ; Sargeni, F. ; Arcidiacono, R. ; Bloch-Devaux, B. ; Boretto, M. ; Menichetti, E. ; Migliore, E. ; Soldi, D. ; Biino, C. ; Filippi, A. ; Marchetto, F. ; Briano Olvera, A. ; Engelfried, J. ; Estrada-Tristan, N. ; Reyes Santos, M. A. ; Boboc, P. ; Bragadireanu, A. M. ; Ghinescu, S. A. ; Hutanu, O. E. ; Bician, L. ; Blazek, T. ; Cerny, V. ; Kucerova, Z. ; Bernhard, J. ; Ceccucci, A. ; Ceoletta, M. ; Danielsson, H. ; De Simone, N. ; Duval, F. ; Dobrich, B. ; Federici, L. ; Gamberini, E. ; Gatignon, L. ; Guida, R. ; Hahn, F. ; Holzer, E. B. ; Jenninger, B. ; Koval, M. ; Laycock, P. ; Miotto, G. Lehmann ; Lichard, P. ; Mapelli, A. ; Marchevski, Radoslav ; Massri, K. ; Noy, M. ; Palladino, V. ; Pinzino, J. ; Ryjov, V. ; Schuchmann, S. ; Venditti, S. ; Bache, T. ; Brunetti, M. B. ; Duk, V. ; Fascianelli, V. ; Fry, J. R. ; Gonnella, F. ; Goudzovski, E. ; Henshaw, J. ; Iacobuzio, L. ; Kenworthy, C. ; Lazzeroni, C. ; Lurkin, N. ; Newson, F. ; Parkinson, C. ; Romano, A. ; Sanders, J. ; Sergi, A. ; Sturgess, A. ; Swallow, J. ; Tomczak, A. ; Heath, H. ; Page, R. ; Trilov, S. ; Angelucci, B. ; Britton, D. ; Graham, C. ; Protopopescu, D. ; Carmignani, J. ; Dainton, J. B. ; Jones, R. W. L. ; Ruggiero, G. ; Fulton, L. ; Hutchcroft, D. ; Maurice, E. ; Wrona, B. ; Conovaloff, A. ; Cooper, P. ; Coward, D. ; Rubin, P. ; Baeva, A. ; Baigarashev, D. ; Emelyanov, D. ; Enik, T. ; Falaleev, V. ; Fedotov, S. ; Gorshanov, K. ; Gushchin, E. ; Kekelidze, V. ; Kereibay, D. ; Kholodenko, S. ; Khotyantsev, A. ; Korotkova, A. ; Kudenko, Y. ; Kurochka, V. ; Kurshetsov, V. ; Litov, L. ; Madigozhin, D. ; Medvedeva, M. ; Mefodev, A. ; Misheva, M. ; Molokanova, N. ; Movchan, S. ; Obraztsov, V. ; Okhotnikov, A. ; Ostankov, A. ; Polenkevich, I. ; Potrebenikov, Yu. ; Sadovskiy, A. ; Semenov, V. ; Shkarovskiy, S. ; Sugonyaev, V. ; Yushchenko, O. ; Zinchenko, A. ; NA62 Collaboration
Published in
Physics Letters B
Volume
846
Pages
138193
Date
2023-11-10
Publisher
Elsevier, Amsterdam
ISSN
0370-2693
1873-2445
1873-2445
Other identifier(s)
View record in Web of Science
Laboratories
LPHE-RM
Record Appears in
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Work produced at EPFL
Journal Articles
Published
Grant
F.R.S. -FNRS(Fonds de la Recherche Scientifique -FNRS), Belgium: 4.4512.10
CECI (Consortium des Equipements de Calcul Intensif) - Fonds de la Recherche Scientifique de Belgique (F.R.S. -FNRS): 2.5020.11
Walloon Region, Belgium
NSERC (Natural Sciences and Engineering Research Council), Canada: SAPPJ-2018-0017
MEYS (Ministry of Education, Youth and Sports), Czech Republic: LM 2018104
BMBF (Bundesministerium fur Bildung und Forschung), Germany: 05H12UM5
INFN (Istituto Nazionale di Fisica Nucleare), Italy
MIUR (Ministero dell'Istruzione, dell'Universita e della Ricerca), Italy
CONACYT(Consejo Nacional de Ciencia y Tecnologia), Mexico
IFA (Institute of Atomic Physics) Romanian CERN-RO, Romania: 1
IFA (Institute of Atomic Physics) Nucleus Programme, Romania: PN 19 06 01 04
MESRS (Ministry of Education, Science, Research and Sport), Slovakia
CERN (European Organization for Nuclear Research), Switzerland
STFC (Science and Technology Facilities Council), United Kingdom
NSF (National Science Foundation), U.S.A.: 1506088
ERC (European Research Council), Europe: 268062
Charles University Research Center, Czech Republic: UNCE/SCI/013
Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy: RBFR12JF2Z
Royal Society, United Kingdom: UF100308
STFC, United Kingdom: ST/J00412X/1
ERC: 268062
EU: 701386
CECI (Consortium des Equipements de Calcul Intensif) - Fonds de la Recherche Scientifique de Belgique (F.R.S. -FNRS): 2.5020.11
Walloon Region, Belgium
NSERC (Natural Sciences and Engineering Research Council), Canada: SAPPJ-2018-0017
MEYS (Ministry of Education, Youth and Sports), Czech Republic: LM 2018104
BMBF (Bundesministerium fur Bildung und Forschung), Germany: 05H12UM5
INFN (Istituto Nazionale di Fisica Nucleare), Italy
MIUR (Ministero dell'Istruzione, dell'Universita e della Ricerca), Italy
CONACYT(Consejo Nacional de Ciencia y Tecnologia), Mexico
IFA (Institute of Atomic Physics) Romanian CERN-RO, Romania: 1
IFA (Institute of Atomic Physics) Nucleus Programme, Romania: PN 19 06 01 04
MESRS (Ministry of Education, Science, Research and Sport), Slovakia
CERN (European Organization for Nuclear Research), Switzerland
STFC (Science and Technology Facilities Council), United Kingdom
NSF (National Science Foundation), U.S.A.: 1506088
ERC (European Research Council), Europe: 268062
Charles University Research Center, Czech Republic: UNCE/SCI/013
Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy: RBFR12JF2Z
Royal Society, United Kingdom: UF100308
STFC, United Kingdom: ST/J00412X/1
ERC: 268062
EU: 701386
Record creation date
2024-03-18