Content area
Abstract
The results of a search for π0 decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 108 tagged π0 mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60–110 MeV/c2. The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay \[ {\pi}^0\to \gamma \nu \overline{\nu} \], improving the current limit by more than three orders of magnitude.
Details
Title
Search for production of an invisible dark photon in π 0 decays
Author
E Cortina Gil 1 ; Kleimenova, A 1 ; Minucci, E 2 ; Padolski, S 3 ; Petrov, P 1 ; Shaikhiev, A 4 ; Volpe, R 1 ; Georgiev, G 5 ; Kozhuharov, V 5 ; Litov, L 6 ; Numao, T 7 ; Petrov, Y 7 ; Velghe, B 7 ; Bryman, D 8 ; J Fu 9 ; Husek, T 10 ; Jerhot, J 11 ; Kampf, K 11 ; Zamkovsky, M 11 ; Aliberti, R 12 ; Khoriauli, G 13 ; Kunze, J 12 ; Lomidze, D 14 ; Peruzzo, L 12 ; Vormstein, M 12 ; Wanke, R 12 ; Dalpiaz, P 15 ; Fiorini, M 15 ; Neri, I 15 ; Norton, A 15 ; Petrucci, F 15 ; Wahl, H 15 ; A Cotta Ramusino 16 ; Gianoli, A 16 ; Iacopini, E 17 ; Latino, G 17 ; Lenti, M 17 ; Parenti, A 17 ; Bizzeti, A 18 ; Bucci, F 19 ; Antonelli, A 20 ; Lanfranchi, G 20 ; Mannocchi, G 20 ; Martellotti, S 20 ; Moulson, M 20 ; Spadaro, T 20 ; Ambrosino, F 21 ; Capussela, T 21 ; Corvino, M 21 ; D Di Filippo 21 ; Massarotti, P 21 ; Mirra, M 21 ; Napolitano, M 21 ; Saracino, G 21 ; Anzivino, G 22 ; Brizioli, F 22 ; Imbergamo, E 22 ; Lollini, R 22 ; Piandani, R 22 ; Santoni, C 22 ; Barbanera, M 23 ; Cenci, P 24 ; Checcucci, B 24 ; Lubrano, P 24 ; Lupi, M 25 ; Pepe, M 24 ; Piccini, M 24 ; Costantini, F 26 ; L Di Lella 26 ; Doble, N 26 ; Giorgi, M 26 ; Giudici, S 26 ; Lamanna, G 26 ; Lari, E 26 ; Pedreschi, E 26 ; Sozzi, M 26 ; Cerri, C 27 ; Fantechi, R 27 ; Pontisso, L 27 ; Spinella, F 27 ; Mannelli, I 28 ; G D’Agostini 29 ; Raggi, M 29 ; Biagioni, A 30 ; Leonardi, E 30 ; Lonardo, A 30 ; Valente, P 30 ; Vicini, P 30 ; Ammendola, R 31 ; Bonaiuto, V 32 ; Fucci, A 31 ; Salamon, A 31 ; Sargeni, F 33 ; Arcidiacono, R 34 ; Bloch-Devaux, B 35 ; Boretto, M 36 ; Menichetti, E 35 ; Migliore, E 35 ; Soldi, D 35 ; Biino, C 37 ; Filippi, A 37 ; Marchetto, F 37 ; Engelfried, J 38 ; Estrada-Tristan, N 39 ; Bragadireanu, A M 40 ; Ghinescu, S A 40 ; Hutanu, O E 40 ; Enik, T 41 ; Falaleev, V 41 ; Kekelidze, V 41 ; Korotkova, A 41 ; Madigozhin, D 41 ; Misheva, M 42 ; Molokanova, N 41 ; Movchan, S 41 ; Polenkevich, I 41 ; Yu Potrebenikov 41 ; Shkarovskiy, S 41 ; Zinchenko, A 41 ; Fedotov, S 43 ; Gushchin, E 43 ; Khotyantsev, A 43 ; Kudenko, Y 44 ; Kurochka, V 43 ; Medvedeva, M 43 ; Mefodev, A 43 ; Kholodenko, S 45 ; Kurshetsov, V 45 ; Obraztsov, V 45 ; Ostankov, A 45 ; Semenov, V 45 ; Sugonyaev, V 45 ; Yushchenko, O 45 ; Bician, L 46 ; Blazek, T 46 ; Cerny, V 46 ; Kucerova, Z 46 ; Bernhard, J 47 ; Ceccucci, A 47 ; Danielsson, H 47 ; De Simone, N 48 ; Duval, F 47 ; Döbrich, B 47 ; Federici, L 47 ; Gamberini, E 47 ; Gatignon, L 47 ; Guida, R 47 ; Hahn, F 47 ; Holzer, E B 47 ; Jenninger, B 47 ; Koval, M 47 ; Laycock, P 49 ; G Lehmann Miotto 47 ; Lichard, P 47 ; Mapelli, A 47 ; Marchevski, R 47 ; Massri, K 47 ; Noy, M 47 ; Palladino, V 50 ; Perrin-Terrin, M 51 ; Pinzino, J 47 ; Ryjov, V 47 ; Schuchmann, S 47 ; Venditti, S 47 ; Bache, T 52 ; Brunetti, M B 52 ; Duk, V 52 ; Fascianelli, V 53 ; Fry, J R 52 ; Gonnella, F 52 ; Goudzovski, E 52 ; Iacobuzio, L 52 ; Lazzeroni, C 52 ; Lurkin, N 52 ; Newson, F 52 ; Parkinson, C 52 ; Romano, A 52 ; Sergi, A 52 ; Sturgess, A 52 ; Swallow, J 52 ; Heath, H 54 ; Page, R 54 ; Trilov, S 54 ; Angelucci, B 55 ; Britton, D 55 ; Graham, C 55 ; Protopopescu, D 55 ; Carmignani, J 56 ; Dainton, J B 56 ; Jones, R W L 56 ; Ruggiero, G 56 ; Fulton, L 57 ; Hutchcroft, D 57 ; Maurice, E 58 ; Wrona, B 57 ; Conovaloff, A 59 ; Cooper, P 59 ; Coward, D 60 ; Rubin, P 59
1 Université Catholique de Louvain, Louvain-La-Neuve, Belgium
2 Université Catholique de Louvain, Louvain-La-Neuve, Belgium; Laboratori Nazionali di Frascati, Frascati, Italy
3 Université Catholique de Louvain, Louvain-La-Neuve, Belgium; Brookhaven National Laboratory, Upton, NY, U.S.A.
4 Université Catholique de Louvain, Louvain-La-Neuve, Belgium; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
5 Faculty of Physics, University of Sofia, Sofia, Bulgaria; Laboratori Nazionali di Frascati, Frascati, Italy
6 Faculty of Physics, University of Sofia, Sofia, Bulgaria
7 TRIUMF, Vancouver, British Columbia, Canada
8 University of British Columbia, Vancouver, British Columbia, Canada
9 University of British Columbia, Vancouver, British Columbia, Canada; UCLA Physics and Biology in Medicine, Los Angeles, CA, U.S.A.
10 Charles University, Prague, Czech Republic; IFIC, Universitat de València - CSIC, València, Spain
11 Charles University, Prague, Czech Republic
12 Institut für Physik and PRISMA Cluster of excellence, Universität Mainz, Mainz, Germany
13 Institut für Physik and PRISMA Cluster of excellence, Universität Mainz, Mainz, Germany; Universität Würzburg, Würzburg, Germany
14 Institut für Physik and PRISMA Cluster of excellence, Universität Mainz, Mainz, Germany; Universität Hamburg, Hamburg, Germany
15 Dipartimento di Fisica e Scienze della Terra dell’Università e INFN, Sezione di Ferrara, Ferrara, Italy
16 INFN, Sezione di Ferrara, Ferrara, Italy
17 Dipartimento di Fisica e Astronomia dell’Università e INFN, Sezione di Firenze, Sesto Fiorentino, Italy
18 INFN, Sezione di Firenze, Sesto Fiorentino, Italy; Dipartimento di Fisica, Università di Modena e Reggio Emilia, Modena, Italy
19 INFN, Sezione di Firenze, Sesto Fiorentino, Italy
20 Laboratori Nazionali di Frascati, Frascati, Italy
21 Dipartimento di Fisica “Ettore Pancini” e INFN, Sezione di Napoli, Napoli, Italy
22 Dipartimento di Fisica e Geologia dell’Università e INFN, Sezione di Perugia, Perugia, Italy
23 INFN, Sezione di Perugia, Perugia, Italy; INFN, Sezione di Pisa, Pisa, Italy
24 INFN, Sezione di Perugia, Perugia, Italy
25 INFN, Sezione di Perugia, Perugia, Italy; Institut am Fachbereich Informatik und Mathematik, Goethe Universität, Frankfurt am Main, Germany
26 Dipartimento di Fisica dell’Università e INFN, Sezione di Pisa, Pisa, Italy
27 INFN, Sezione di Pisa, Pisa, Italy
28 Scuola Normale Superiore e INFN, Sezione di Pisa, Pisa, Italy
29 Dipartimento di Fisica, Sapienza Università di Roma e INFN, Sezione di Roma I, Roma, Italy
30 INFN, Sezione di Roma I, Roma, Italy
31 INFN, Sezione di Roma Tor Vergata, Roma, Italy
32 INFN, Sezione di Roma Tor Vergata, Roma, Italy; Department of Industrial Engineering, University of Roma Tor Vergata, Roma, Italy
33 INFN, Sezione di Roma Tor Vergata, Roma, Italy; Department of Electronic Engineering, University of Roma Tor Vergata, Roma, Italy
34 Dipartimento di Fisica dell’Università e INFN, Sezione di Torino, Torino, Italy; Università degli Studi del Piemonte Orientale, Vercelli, Italy
35 Dipartimento di Fisica dell’Università e INFN, Sezione di Torino, Torino, Italy
36 Dipartimento di Fisica dell’Università e INFN, Sezione di Torino, Torino, Italy; CERN, European Organization for Nuclear Research, Geneva 23, Switzerland
37 INFN, Sezione di Torino, Torino, Italy
38 Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
39 Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Universidad de Guanajuato, Guanajuato, Mexico
40 Horia Hulubei national Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
41 Joint Institute for Nuclear Research, Dubna, Russia
42 Joint Institute for Nuclear Research, Dubna, Russia; Institute of Nuclear Research and Nuclear Energy of Bulgarian Academy of Science (INRNE-BAS), Sofia, Bulgaria
43 Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
44 Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia; National Research Nuclear University (MEPhI), Moscow, Russia; Moscow Institute of Physics and Technology, Moscow, Russia
45 Institute for High Energy Physics - State Research Center of Russian Federation, Protvino, Russia
46 Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia
47 CERN, European Organization for Nuclear Research, Geneva, Switzerland
48 CERN, European Organization for Nuclear Research, Geneva, Switzerland; DESY, Zeuthen, Germany
49 CERN, European Organization for Nuclear Research, Geneva, Switzerland; Brookhaven National Laboratory, Upton, NY, U.S.A.
50 CERN, European Organization for Nuclear Research, Geneva, Switzerland; Physics Department, Imperial College London, London, U.K.
51 CERN, European Organization for Nuclear Research, Geneva, Switzerland; Centre de Physique des Particules de Marseille, Université Aix Marseille, CNRS/IN2P3, Marseille, France; Université Catholique de Louvain, Louvain-La-Neuve, Belgium
52 University of Birmingham, Birmingham, United Kingdom
53 University of Birmingham, Birmingham, United Kingdom; Dipartimento di Psicologia, Università di Roma La Sapienza, Roma, Italy
54 University of Bristol, Bristol, United Kingdom
55 University of Glasgow, Glasgow, United Kingdom
56 University of Lancaster, Lancaster, United Kingdom
57 University of Liverpool, Liverpool, United Kingdom
58 University of Liverpool, Liverpool, United Kingdom; Laboratoire Leprince Ringuet, Palaiseau, France
59 George Mason University, Fairfax, Virginia, U.S.A.
60 George Mason University, Fairfax, Virginia, U.S.A.; SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA, U.S.A.
1 Université Catholique de Louvain, Louvain-La-Neuve, Belgium
2 Université Catholique de Louvain, Louvain-La-Neuve, Belgium; Laboratori Nazionali di Frascati, Frascati, Italy
3 Université Catholique de Louvain, Louvain-La-Neuve, Belgium; Brookhaven National Laboratory, Upton, NY, U.S.A.
4 Université Catholique de Louvain, Louvain-La-Neuve, Belgium; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
5 Faculty of Physics, University of Sofia, Sofia, Bulgaria; Laboratori Nazionali di Frascati, Frascati, Italy
6 Faculty of Physics, University of Sofia, Sofia, Bulgaria
7 TRIUMF, Vancouver, British Columbia, Canada
8 University of British Columbia, Vancouver, British Columbia, Canada
9 University of British Columbia, Vancouver, British Columbia, Canada; UCLA Physics and Biology in Medicine, Los Angeles, CA, U.S.A.
10 Charles University, Prague, Czech Republic; IFIC, Universitat de València - CSIC, València, Spain
11 Charles University, Prague, Czech Republic
12 Institut für Physik and PRISMA Cluster of excellence, Universität Mainz, Mainz, Germany
13 Institut für Physik and PRISMA Cluster of excellence, Universität Mainz, Mainz, Germany; Universität Würzburg, Würzburg, Germany
14 Institut für Physik and PRISMA Cluster of excellence, Universität Mainz, Mainz, Germany; Universität Hamburg, Hamburg, Germany
15 Dipartimento di Fisica e Scienze della Terra dell’Università e INFN, Sezione di Ferrara, Ferrara, Italy
16 INFN, Sezione di Ferrara, Ferrara, Italy
17 Dipartimento di Fisica e Astronomia dell’Università e INFN, Sezione di Firenze, Sesto Fiorentino, Italy
18 INFN, Sezione di Firenze, Sesto Fiorentino, Italy; Dipartimento di Fisica, Università di Modena e Reggio Emilia, Modena, Italy
19 INFN, Sezione di Firenze, Sesto Fiorentino, Italy
20 Laboratori Nazionali di Frascati, Frascati, Italy
21 Dipartimento di Fisica “Ettore Pancini” e INFN, Sezione di Napoli, Napoli, Italy
22 Dipartimento di Fisica e Geologia dell’Università e INFN, Sezione di Perugia, Perugia, Italy
23 INFN, Sezione di Perugia, Perugia, Italy; INFN, Sezione di Pisa, Pisa, Italy
24 INFN, Sezione di Perugia, Perugia, Italy
25 INFN, Sezione di Perugia, Perugia, Italy; Institut am Fachbereich Informatik und Mathematik, Goethe Universität, Frankfurt am Main, Germany
26 Dipartimento di Fisica dell’Università e INFN, Sezione di Pisa, Pisa, Italy
27 INFN, Sezione di Pisa, Pisa, Italy
28 Scuola Normale Superiore e INFN, Sezione di Pisa, Pisa, Italy
29 Dipartimento di Fisica, Sapienza Università di Roma e INFN, Sezione di Roma I, Roma, Italy
30 INFN, Sezione di Roma I, Roma, Italy
31 INFN, Sezione di Roma Tor Vergata, Roma, Italy
32 INFN, Sezione di Roma Tor Vergata, Roma, Italy; Department of Industrial Engineering, University of Roma Tor Vergata, Roma, Italy
33 INFN, Sezione di Roma Tor Vergata, Roma, Italy; Department of Electronic Engineering, University of Roma Tor Vergata, Roma, Italy
34 Dipartimento di Fisica dell’Università e INFN, Sezione di Torino, Torino, Italy; Università degli Studi del Piemonte Orientale, Vercelli, Italy
35 Dipartimento di Fisica dell’Università e INFN, Sezione di Torino, Torino, Italy
36 Dipartimento di Fisica dell’Università e INFN, Sezione di Torino, Torino, Italy; CERN, European Organization for Nuclear Research, Geneva 23, Switzerland
37 INFN, Sezione di Torino, Torino, Italy
38 Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
39 Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico; Universidad de Guanajuato, Guanajuato, Mexico
40 Horia Hulubei national Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
41 Joint Institute for Nuclear Research, Dubna, Russia
42 Joint Institute for Nuclear Research, Dubna, Russia; Institute of Nuclear Research and Nuclear Energy of Bulgarian Academy of Science (INRNE-BAS), Sofia, Bulgaria
43 Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
44 Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia; National Research Nuclear University (MEPhI), Moscow, Russia; Moscow Institute of Physics and Technology, Moscow, Russia
45 Institute for High Energy Physics - State Research Center of Russian Federation, Protvino, Russia
46 Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia
47 CERN, European Organization for Nuclear Research, Geneva, Switzerland
48 CERN, European Organization for Nuclear Research, Geneva, Switzerland; DESY, Zeuthen, Germany
49 CERN, European Organization for Nuclear Research, Geneva, Switzerland; Brookhaven National Laboratory, Upton, NY, U.S.A.
50 CERN, European Organization for Nuclear Research, Geneva, Switzerland; Physics Department, Imperial College London, London, U.K.
51 CERN, European Organization for Nuclear Research, Geneva, Switzerland; Centre de Physique des Particules de Marseille, Université Aix Marseille, CNRS/IN2P3, Marseille, France; Université Catholique de Louvain, Louvain-La-Neuve, Belgium
52 University of Birmingham, Birmingham, United Kingdom
53 University of Birmingham, Birmingham, United Kingdom; Dipartimento di Psicologia, Università di Roma La Sapienza, Roma, Italy
54 University of Bristol, Bristol, United Kingdom
55 University of Glasgow, Glasgow, United Kingdom
56 University of Lancaster, Lancaster, United Kingdom
57 University of Liverpool, Liverpool, United Kingdom
58 University of Liverpool, Liverpool, United Kingdom; Laboratoire Leprince Ringuet, Palaiseau, France
59 George Mason University, Fairfax, Virginia, U.S.A.
60 George Mason University, Fairfax, Virginia, U.S.A.; SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA, U.S.A.
Pages
1-20
Publication year
2019
Publication date
May 2019
e-ISSN
10298479
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2231720523
Copyright
Journal of High Energy Physics is a copyright of Springer, (2019). All Rights Reserved.