| Article | |
| Report number | arXiv:2401.01708 ; CERN-EP-2023-306 |
| Title | First Results in the Search for Dark Sectors at NA64 with the CERN SPS High Energy Muon Beam |
| Related title | Exploration of the Muon $g-2$ and Light Dark Matter explanations in NA64 with the CERN SPS high energy muon beam |
| Author(s) |
Andreev, Yu.M. (Unlisted) ; Banerjee, D. (CERN) ; Oberhauser, B. Banto (Zurich, ETH) ; Bernhard, J. (CERN) ; Bisio, P. (INFN, Genoa ; Genoa U.) ; Charitonidis, N. (CERN) ; Crivelli, P. (Zurich, ETH) ; Depero, E. (Zurich, ETH) ; Dermenev, A.V. (Unlisted) ; Donskov, S.V. (Unlisted) ; Dusaev, R.R. (Unlisted) ; Enik, T. (Unlisted) ; Frolov, V.N. (Unlisted) ; Gardikiotis, A. (Patras U.) ; Gertsenberger, S.V. (Unlisted) ; Girod, S. (CERN) ; Gninenko, S.N. (Unlisted ; Unlisted, CL) ; Hoesgen, M. (Bonn U.) ; Joosten, R. (Bonn U.) ; Kachanov, V.A. (Unlisted) ; Kambar, Y. (Unlisted) ; Karneyeu, A.E. (Unlisted) ; Kasianova, E.A. (Unlisted) ; Kekelidze, G. (Unlisted) ; Ketzer, B. (Bonn U.) ; Kirpichnikov, D.V. (Unlisted) ; Kirsanov, M.M. (Unlisted) ; Kolosov, V.N. (Unlisted) ; Kramarenko, V.A. (Unlisted) ; Kravchuk, L.V. (Unlisted) ; Krasnikov, N.V. (Unlisted) ; Kuleshov, S.V. (Unlisted, CL ; Chile U., Santiago) ; Lyubovitskij, V.E. (Unlisted ; Chile U., Santiago ; Santa Maria U., Valparaiso) ; Lysan, V. (Unlisted) ; Matveev, V.A. (Unlisted) ; Fredes, R. Mena (Chile U., Santiago ; Santa Maria U., Valparaiso) ; Yanssen, R.G. Mena (Chile U., Santiago ; Santa Maria U., Valparaiso) ; Bueno, L. Molina (Valencia U., IFIC) ; Mongillo, M. (Zurich, ETH) ; Peshekhonov, D.V. (Unlisted) ; Polyakov, V.A. (Unlisted) ; Radics, B. (York U., Canada) ; Salamatin, K.M. (Unlisted) ; Samoylenko, V.D. (Unlisted) ; Shchukin, D.A. (Unlisted) ; Soto, O. (La Serena U. ; Chile U., Santiago) ; Sieber, H. (Zurich, ETH) ; Tikhomirov, V.O. (Unlisted) ; Tlisova, I.V. (Unlisted) ; Toropin, A.N. (Unlisted) ; Tuzi, M. (Valencia U., IFIC) ; Veit, M.B. (Mainz U., Inst. Phys.) ; Volkov, P.V. (Unlisted) ; Volkov, V.Yu. (Unlisted) ; Voronchikhin, I.V. (Unlisted) ; Zamora-Saa, J. (Unlisted, CL ; Chile U., Santiago) ; Zhevlakov, A.S. (Unlisted) |
| Corporate author(s) | The NA64 collaboration |
| Publication | 2024-05-21 |
| Imprint | 18 Dec 2023 |
| Number of pages | 5 |
| Note | 5 pages, 4 figures |
| Published in: | Phys. Rev. Lett. 132 (2024) 211803 |
| DOI | 10.1103/PhysRevLett.132.211803 |
| Subject category | Particle Physics - Experiment ; Particle Physics - Phenomenology |
| Accelerator/Facility, Experiment | CERN SPS ; NA64 |
| Keywords | exotics ; particle and resonance production ; experimental results |
| Abstract | We report on a search for a new $Z'$ ($L_\mu-L_\tau$) vector boson performed at the NA64 experiment employing a high energy muon beam and a missing energy-momentum technique. Muons from the M2 beamline at the CERN Super Proton Synchrotron with a momentum of 160 GeV/c are directed to an active target. A signal event is a single scattered muon with momentum $<$ 80 GeV/c in the final state, accompanied by missing energy, i.e. no detectable activity in the downstream calorimeters. For a total statistic of $(1.98\pm0.02)\times10^{10}$ muons on target, no event is observed in the expected signal region. This allows us to set new limits on part of the remaining $(m_{Z'},\ g_{Z'})$ parameter space which could provide an explanation for the muon $(g-2)_\mu$ anomaly. Additionally, our study excludes part of the parameter space suggested by the thermal Dark Matter relic abundance. Our results pave the way to explore Dark Sectors and light Dark Matter with muon beams in a unique and complementary way to other experiments. |
| Other source | Inspire |
| Copyright/License | Preprint: © 2023-2024 CERN (License: CC-BY-4.0) Publication: © 2024 authors (License: CC BY 4.0), sponsored by SCOAP³ |
| Submitted by | [email protected] |
Zapis kreiran 2023-12-18, zadnja izmjena 2024-11-14
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