Search for Leptonic Decays of Dark Photons at NA62
Cortina Gil E. Jerhot J. Kleimenova A. Lurkin N. Zamkovsky M. Numao T. Velghe B. Wong V.W.S. Bryman D. Hives Z. Husek T. Kampf K. Koval M. De Martino B. Perrin-Terrin M. Döbrich B. Lezki S. Akmete A.T. Aliberti R. Di Lella L. Doble N. Peruzzo L. Schuchmann S. Wahl H. Wanke R. Dalpiaz P. Neri I. Petrucci F. Soldani M. Bandiera L. Cotta Ramusino A. Gianoli A. Romagnoni M. Sytov A. Lenti M. Lo Chiatto P. Marchevski R. Panichi I. Ruggiero G. Bizzeti A. Bucci F. Antonelli A. Kozhuharov V. Lanfranchi G. Martellotti S. Moulson M. Spadaro T. Tinti G. Ambrosino F. DErrico M. Fiorenza R. Giordano R. Massarotti P. Mirra M. Napolitano M. Rosa I. Saracino G. Anzivino G. Brizioli F. Cenci P. Duk V. Lollini R. Lubrano P. Pepe M. Piccini M. Costantini F. Giorgi M. Giudici S. Lamanna G. Lari E. Pedreschi E. Pinzino J. Sozzi M. Fantechi R. Spinella F. Mannelli I. Raggi M. Biagioni A. Cretaro P. Frezza O. Lonardo A. Turisini M. Vicini P. Ammendola R. Bonaiuto V. Fucci A. Salamon A. Sargeni F. Arcidiacono R. Bloch-Devaux B. Menichetti E. Migliore E. Biino C. Filippi A. Marchetto F. Soldi D. Briano Olvera A. Engelfried J. Estrada-Tristan N. Piandani R. Reyes Santos M.A. Rodriguez Rivera K.A. Boboc P. Bragadireanu A.M. Ghinescu S.A. Hutanu O.E. Blazek T. Cerny V. Kucerova Z. Volpe R. Bernhard J. Bician L. Boretto M. Ceccucci A. Ceoletta M. Corvino M. Danielsson H. Duval F. Federici L. Gamberini E. Guida R. Holzer E.B. Jenninger B. Lehmann Miotto G. Lichard P. Massri K. Minucci E. Noy M. Ryjov V. Swallow J. Fry J.R. Gonnella F. Goudzovski E. Henshaw J. Kenworthy C. Lazzeroni C. Parkinson C. Romano A. Sanders J. Sergi A. Shaikhiev A. Tomczak A. Heath H. Britton D. Norton A. Protopopescu D. Dainton J.B. Gatignon L. Jones R.W.L. 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. Mefodev A. Misheva M. Molokanova N. Obraztsov V. Okhotnikov A. Polenkevich I. Potrebenikov Y. Sadovskiy A. Shkarovskiy S. Sugonyaev V. Yushchenko O.
13 September 2024American Physical Society
Physical Review Letters
2024#133Issue 11
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.
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Université Catholique de Louvain, Louvain-La-Neuve, Belgium
TRIUMF, Vancouver, V6T 2A3, BC, Canada
University of British Columbia, Vancouver, BC, Canada
Charles University, Prague, Czech Republic
Aix Marseille University, CNRS/IN2P3, CPPM, Marseille, France
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Garching, Germany
Institut für Physik, PRISMA Cluster of Excellence, Universität Mainz, Mainz, Germany
Dipartimento di Fisica e Scienze della Terra, Università e INFN, Sezione di Ferrara, Ferrara, Italy
INFN, Sezione di Ferrara, Ferrara, Italy
Dipartimento di Fisica e Astronomia, Università e INFN, Sezione di Firenze, Sesto Fiorentino, Italy
INFN, Sezione di Firenze, Sesto Fiorentino, Italy
Laboratori Nazionali di Frascati, Frascati, Italy
Dipartimento di Fisica Ettore Pancini e INFN, Sezione di Napoli, Napoli, Italy
Dipartimento di Fisica e Geologia, Università e INFN, Sezione di Perugia, Perugia, Italy
INFN, Sezione di Perugia, Perugia, Italy
Dipartimento di Fisica, Università e INFN, Sezione di Pisa, Pisa, Italy
INFN, Sezione di Pisa, Pisa, Italy
Scuola Normale Superiore e INFN, Sezione di Pisa, Pisa, Italy
Dipartimento di Fisica, Sapienza Università di Roma e INFN, Sezione di Roma I, Roma, Italy
INFN, Sezione di Roma I, Roma, Italy
INFN, Sezione di Roma Tor Vergata, Roma, Italy
Dipartimento di Fisica, Università e INFN, Sezione di Torino, Torino, Italy
INFN, Sezione di Torino, Torino, Italy
Instituto de Física, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Bucharest-Magurele, Romania
Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia
CERN, European Organization for Nuclear Research, Geneva, Switzerland
School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, United Kingdom
School of Physics, University of Bristol, Bristol, United Kingdom
School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
Physics Department, University of Lancaster, Lancaster, United Kingdom
Physics and Astronomy Department, George Mason University, Fairfax, VA, United States
CERN, Switzerland
Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, Modena, I-41125, Italy
Faculty of Physics, University of Sofia, Sofia, BG-1164, Bulgaria
Department of Industrial Engineering, University of Roma Tor Vergata, Roma, I-00173, Italy
Department of Electronic Engineering, University of Roma Tor Vergata, Roma, I-00173, Italy
Università Degli Studi Del Piemonte Orientale, Vercelli, I-13100, Italy
Universidad de Guanajuato, Guanajuato, 36000, Mexico
SLAC National Accelerator Laboratory, Stanford University, Menlo Park, 94025, CA, United States
L. N. Gumilyov Eurasian National University, Nur-Sultan, 010000, Kazakhstan
Université Catholique de Louvain
TRIUMF
University of British Columbia
Charles University
Aix Marseille University
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)
Institut für Physik
Dipartimento di Fisica e Scienze della Terra
INFN
Dipartimento di Fisica e Astronomia
INFN
Laboratori Nazionali di Frascati
Dipartimento di Fisica Ettore Pancini e INFN
Dipartimento di Fisica e Geologia
INFN
Dipartimento di Fisica
INFN
Scuola Normale Superiore e INFN
Dipartimento di Fisica
INFN
INFN
Dipartimento di Fisica
INFN
Instituto de Física
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
Faculty of Mathematics
CERN
School of Physics and Astronomy
School of Physics
School of Physics and Astronomy
Physics Department
Physics and Astronomy Department
CERN
Dipartimento di Scienze Fisiche
Faculty of Physics
Department of Industrial Engineering
Department of Electronic Engineering
Università Degli Studi Del Piemonte Orientale
Universidad de Guanajuato
SLAC National Accelerator Laboratory
L. N. Gumilyov Eurasian National University
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