Search for Leptonic Decays of Dark Photons at NA62
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Published:2024-09-11
Issue:11
Volume:133
Page:
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ISSN:0031-9007
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Container-title:Physical Review Letters
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language:en
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Short-container-title:Phys. Rev. Lett.
Author:
Cortina Gil E.1, Jerhot J.1, Kleimenova A.1, Lurkin N.1, Zamkovsky M.1, Numao T.2, Velghe B.2, Wong V. W. S.2, Bryman D.3, Hives Z.4, Husek T.4, Kampf K.4, Koval M.4, De Martino B.5, Perrin-Terrin M.5, Döbrich B.6, Lezki S.6, Akmete A. T.7, Aliberti R.7, Di Lella L.7, Doble N.7, Peruzzo L.7, Schuchmann S.7, Wahl H.7, Wanke R.7, Dalpiaz P.8, Neri I.8, Petrucci F.8, Soldani M.8, Bandiera L.9, Cotta Ramusino A.9, Gianoli A.9, Romagnoni M.9, Sytov A.9, Lenti M.10, Lo Chiatto P.10, Marchevski R.10, Panichi I.10, Ruggiero G.10, Bizzeti A.9, Bucci F.9, Antonelli A.11, Kozhuharov V.11, Lanfranchi G.11, Martellotti S.11, Moulson M.11, Spadaro T.11, Tinti G.11, Ambrosino F.12, D’Errico M.12, Fiorenza R.12, Giordano R.12, Massarotti P.12, Mirra M.12, Napolitano M.12, Rosa I.12, Saracino G.12, Anzivino G.13, Brizioli F.9, Cenci P.9, Duk V.9, Lollini R.9, Lubrano P.9, Pepe M.9, Piccini M.9, Costantini F.14, Giorgi M.14, Giudici S.14, Lamanna G.14, Lari E.14, Pedreschi E.14, Pinzino J.14, Sozzi M.14, Fantechi R.9, Spinella F.9, Mannelli I.15, Raggi M.16, Biagioni A.9, Cretaro P.9, Frezza O.9, Lonardo A.9, Turisini M.9, Vicini P.9, Ammendola R.9, Bonaiuto V.9, Fucci A.9, Salamon A.9, Sargeni F.9, Arcidiacono R.14, Bloch-Devaux B.14, Menichetti E.14, Migliore E.14, Biino C.9, Filippi A.9, Marchetto F.9, Soldi D.9, Briano Olvera A.17, Engelfried J.17, Estrada-Tristan N.17, Piandani R.17, Reyes Santos M. A.17, Rodriguez Rivera K. A.17, Boboc P.18, Bragadireanu A. M.18, Ghinescu S. A.18ORCID, Hutanu O. E.18, Blazek T.19, Cerny V.19, Kucerova Z.19, Volpe R.19, Bernhard J.20, Bician L.20, Boretto M.20, Ceccucci A.20, Ceoletta M.20, Corvino M.20, Danielsson H.20, Duval F.20, Federici L.20, Gamberini E.20, Guida R.20, Holzer E. B.20, Jenninger B.20, Lehmann Miotto G.20, Lichard P.20, Massri K.20, Minucci E.20, Noy M.20, Ryjov V.20, Swallow J.20, Fry J. R.21, Gonnella F.21, Goudzovski E.21, Henshaw J.21, Kenworthy C.21, Lazzeroni C.21, Parkinson C.21, Romano A.21, Sanders J.21, Sergi A.21, Shaikhiev A.21, Tomczak A.21, Heath H.22, Britton D.23, Norton A.23, Protopopescu D.23, Dainton J. B.24, Gatignon L.24, Jones R. W. L.24, Cooper P.25, Coward D.25, Rubin P.25, Baeva A.26, Baigarashev D.26, Emelyanov D.26, Enik T.26, Falaleev V.26, Fedotov S.26, Gorshanov K.26, Gushchin E.26, Kekelidze V.26, Kereibay D.26, Kholodenko S.26, Khotyantsev A.26, Korotkova A.26, Kudenko Y.26, Kurochka V.26, Kurshetsov V.26, Litov L.26, Madigozhin D.26, Mefodev A.26, Misheva M.26, Molokanova N.26, Obraztsov V.26, Okhotnikov A.26, Polenkevich I.26, Potrebenikov Yu.26, Sadovskiy A.26, Shkarovskiy S.26, Sugonyaev V.26, Yushchenko O.26,
Affiliation:
1. Université Catholique de Louvain 2. TRIUMF 3. University of British Columbia 4. Charles University 5. Aix Marseille University 6. Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) 7. Universität Mainz 8. Dipartimento di Fisica e Scienze della Terra dell’Università e INFN 9. INFN 10. Dipartimento di Fisica e Astronomia dell’Università e INFN 11. Laboratori Nazionali di Frascati 12. Dipartimento di Fisica “Ettore Pancini” e INFN 13. Dipartimento di Fisica e Geologia dell’Università e INFN 14. Dipartimento di Fisica dell’Università e INFN 15. Scuola Normale Superiore e INFN 16. Sapienza Università di Roma e INFN 17. Universidad Autónoma de San Luis Potosí 18. Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering 19. Comenius University 20. CERN 21. University of Birmingham 22. University of Bristol 23. University of Glasgow 24. University of Lancaster 25. George Mason University 26. Authors affiliated with an institute or an international laboratory covered by a cooperation agreement with CERN
Abstract
The NA62 experiment at CERN, configured in beam-dump mode, has searched for dark photon decays in flight to electron-positron pairs using a sample of 1.4×1017 protons on dump collected in 2021. No evidence for a dark photon signal is observed. The combined result for dark photon searches in lepton–antilepton final states is presented and a region of the parameter space is excluded at 90% confidence level, improving on previous experimental limits for dark photon mass values between 50 and 600 MeV/c2 and coupling values in the range 10−6 to 4×10−5. An interpretation of the e+e− search result in terms of the emission and decay of an axionlike particle is also presented.
Published by the American Physical Society
2024
Funder
Fonds De La Recherche Scientifique - FNRS Natural Sciences and Engineering Research Council of Canada Ministerstvo Školství, Mládeže a Tělovýchovy Bundesministerium für Bildung und Forschung Instituto Nazionale di Fisica Nucleare Ministero dell’Istruzione, dell’Università e della Ricerca Consejo Nacional de Ciencia y Tecnología Institutul de Fizică Atomică CERN Ministerstvo školstva, vedy, výskumu a športu Slovenskej republiky National Science Foundation Univerzita Karlova v Praze Grantová Agentura České Republiky Royal Society Science and Technology Facilities Council H2020 European Research Council H2020 Marie Sklodowska-Curie Actions Consortium des Equipements de Calcul Intensif Walloon Region, Belgium
Publisher
American Physical Society (APS)
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