Search for Leptonic Decays of Dark Photons at NA62

(NA62 Collaboration); E. Cortina Gil; H. Heath

doi:10.1103/PhysRevLett.133.111802

Search for Leptonic Decays of Dark Photons at NA62

(NA62 Collaboration), E. Cortina Gil, H. Heath

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

7 Citations (Scopus)

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.

Original language	English
Article number	111802
Number of pages	10
Journal	Physical Review Letters
Volume	133
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.133.111802
Publication status	Published - 11 Sept 2024

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© 2024 authors. Published by the American Physical Society.

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@article{93ff2b1823e947e4aa1fb9b3be940f9f,

title = "Search for Leptonic Decays of Dark Photons at NA62",

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.",

author = "{(NA62 Collaboration)} and {Cortina Gil}, E. and J. Jerhot and A. Kleimenova and N. Lurkin and M. Zamkovsky and T. Numao and B. Velghe and D. Bryman and Z. Hives and T. Husek and K. Kampf and M. Koval and {De Martino}, B. and M. Perrin-Terrin and B. D{\"o}brich and S. Lezki and Akmete, {A. T.} and R. Aliberti and {Di Lella}, L. and N. Doble and L. Peruzzo and S. Schuchmann and H. Wahl and R. Wanke and P. Dalpiaz and I. Neri and F. Petrucci and M. Soldani and L. Bandiera and H. Heath",

note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society.",

year = "2024",

month = sep,

day = "11",

doi = "10.1103/PhysRevLett.133.111802",

language = "English",

volume = "133",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society (APS)",

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TY - JOUR

T1 - Search for Leptonic Decays of Dark Photons at NA62

AU - (NA62 Collaboration)

AU - Cortina Gil, E.

AU - Jerhot, J.

AU - Kleimenova, A.

AU - Lurkin, N.

AU - Zamkovsky, M.

AU - Numao, T.

AU - Velghe, B.

AU - Bryman, D.

AU - Hives, Z.

AU - Husek, T.

AU - Kampf, K.

AU - Koval, M.

AU - De Martino, B.

AU - Perrin-Terrin, M.

AU - Döbrich, B.

AU - Lezki, S.

AU - Akmete, A. T.

AU - Aliberti, R.

AU - Di Lella, L.

AU - Doble, N.

AU - Peruzzo, L.

AU - Schuchmann, S.

AU - Wahl, H.

AU - Wanke, R.

AU - Dalpiaz, P.

AU - Neri, I.

AU - Petrucci, F.

AU - Soldani, M.

AU - Bandiera, L.

AU - Heath, H.

PY - 2024/9/11

Y1 - 2024/9/11

N2 - 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.

AB - 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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U2 - 10.1103/PhysRevLett.133.111802

DO - 10.1103/PhysRevLett.133.111802

M3 - Article (Academic Journal)

C2 - 39331997

AN - SCOPUS:85205979494

SN - 0031-9007

VL - 133

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 111802

ER -

Search for Leptonic Decays of Dark Photons at NA62

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