Search for dark photon decays to μ + μ − at NA62

The NA62 Collaboration

doi:10.1007/JHEP09(2023)035

Search for dark photon decays to μ ⁺ μ ⁻ at NA62

The NA62 Collaboration

Department of Pharmaceutical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

The NA62 experiment at CERN, designed to study the ultra-rare decay K ⁺ → π ⁺ νν¯ , has also collected data in beam-dump mode. In this configuration, dark photons may be produced by protons dumped on an absorber and reach a decay volume beginning 80 m downstream. A search for dark photons decaying in flight to μ ⁺ μ ⁻ pairs is reported, based on a sample of 1.4 × 10¹⁷ protons on dump collected in 2021. No evidence for a dark photon signal is observed. A region of the parameter space is excluded at 90% CL, improving on previous experimental limits for dark photon masses between 215 and 550 MeV/c ².

Original language	English
Article number	35
Journal	Journal of High Energy Physics
Volume	2023
Issue number	9
DOIs	https://doi.org/10.1007/JHEP09(2023)035
Publication status	Published - Sept 2023

Keywords

Beyond Standard Model
Dark Matter
Exotics
Fixed Target Experiments

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10.1007/JHEP09(2023)035

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@article{01dd09e3f0ce4df58ea03cab35006d0f,

title = "Search for dark photon decays to μ + μ − at NA62",

abstract = "The NA62 experiment at CERN, designed to study the ultra-rare decay K + → π + νν¯ , has also collected data in beam-dump mode. In this configuration, dark photons may be produced by protons dumped on an absorber and reach a decay volume beginning 80 m downstream. A search for dark photons decaying in flight to μ + μ − pairs is reported, based on a sample of 1.4 × 1017 protons on dump collected in 2021. No evidence for a dark photon signal is observed. A region of the parameter space is excluded at 90\% CL, improving on previous experimental limits for dark photon masses between 215 and 550 MeV/c 2.",

keywords = "Beyond Standard Model, Dark Matter, Exotics, Fixed Target Experiments",

author = "\{The 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 Wong, \{V. W.S.\} and D. Bryman and Z. Hives and T. Husek and K. Kampf and M. Koval and \{De Martino\}, B. and M. Perrin-Terrin 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 A. Mazzolari and I. Neri and F. Petrucci and M. Soldani and L. Bandiera and \{Cotta Ramusino\}, A. and A. Gianoli and M. Romagnoni and A. Sytov and M. Lenti and \{Lo Chiatto\}, P. and R. Marchevski and I. Panichi and G. Ruggiero and A. Bizzeti and F. Bucci and A. Antonelli and V. Kozhuharov and G. Lanfranchi and S. Martellotti and M. Moulson and T. Spadaro and G. Tinti and F. Ambrosino and M. D{\textquoteright}Errico and R. Arcidiacono",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = sep,

doi = "10.1007/JHEP09(2023)035",

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "9",

}

TY - JOUR

T1 - Search for dark photon decays to μ + μ − at NA62

AU - The 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 - Wong, V. W.S.

AU - Bryman, D.

AU - Hives, Z.

AU - Husek, T.

AU - Kampf, K.

AU - Koval, M.

AU - De Martino, B.

AU - Perrin-Terrin, M.

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 - Mazzolari, A.

AU - Neri, I.

AU - Petrucci, F.

AU - Soldani, M.

AU - Bandiera, L.

AU - Cotta Ramusino, A.

AU - Gianoli, A.

AU - Romagnoni, M.

AU - Sytov, A.

AU - Lenti, M.

AU - Lo Chiatto, P.

AU - Marchevski, R.

AU - Panichi, I.

AU - Ruggiero, G.

AU - Bizzeti, A.

AU - Bucci, F.

AU - Antonelli, A.

AU - Kozhuharov, V.

AU - Lanfranchi, G.

AU - Martellotti, S.

AU - Moulson, M.

AU - Spadaro, T.

AU - Tinti, G.

AU - Ambrosino, F.

AU - D’Errico, M.

AU - Arcidiacono, R.

PY - 2023/9

Y1 - 2023/9

N2 - The NA62 experiment at CERN, designed to study the ultra-rare decay K + → π + νν¯ , has also collected data in beam-dump mode. In this configuration, dark photons may be produced by protons dumped on an absorber and reach a decay volume beginning 80 m downstream. A search for dark photons decaying in flight to μ + μ − pairs is reported, based on a sample of 1.4 × 1017 protons on dump collected in 2021. No evidence for a dark photon signal is observed. A region of the parameter space is excluded at 90% CL, improving on previous experimental limits for dark photon masses between 215 and 550 MeV/c 2.

AB - The NA62 experiment at CERN, designed to study the ultra-rare decay K + → π + νν¯ , has also collected data in beam-dump mode. In this configuration, dark photons may be produced by protons dumped on an absorber and reach a decay volume beginning 80 m downstream. A search for dark photons decaying in flight to μ + μ − pairs is reported, based on a sample of 1.4 × 1017 protons on dump collected in 2021. No evidence for a dark photon signal is observed. A region of the parameter space is excluded at 90% CL, improving on previous experimental limits for dark photon masses between 215 and 550 MeV/c 2.

KW - Beyond Standard Model

KW - Dark Matter

KW - Exotics

KW - Fixed Target Experiments

UR - https://www.scopus.com/pages/publications/85173753670

U2 - 10.1007/JHEP09(2023)035

DO - 10.1007/JHEP09(2023)035

M3 - Article

SN - 1029-8479

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 9

M1 - 35

ER -

Search for dark photon decays to μ ⁺ μ ⁻ at NA62

Abstract

Keywords

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