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NA64 Status Report 2025 / Crivelli, P ; Molina-Bueno, L ; Gninenko, S ; Celentano, A ; Marsicano, L ; Poliakov, V
We report on the latest achievements of the NA64 experiment, which uniquely combines missing-energy and missing-momentum techniques with the versatility of the CERN SPS secondary beam lines. [...]
CERN-SPSC-2025-031 ; SPSC-SR-367. - 2025 - mult..
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Searching for Light Dark Matter and Dark Sectors with the NA64 experiment at the CERN SPS / NA64 Collaboration
Since its approval in 2016, NA64 has pioneered light dark matter (LDM) searches with electron, positron, muon, and hadron beams. [...]
arXiv:2505.14291. - 15.
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High efficiency veto hadron calorimeter in the NA64 experiment at CERN / NA64 Collaboration
NA64 is a fixed-target experiment at the CERN SPS designed to search for Light particle Dark Matter (LDM) candidates with masses in the sub-GeV range. During the 2016-2022 runs, the experiment obtained the world-leading constraints, leaving however part of the well-motivated region of parameter space suggested by benchmark LDM models still unexplored. [...]
arXiv:2503.11275; CERN-EP-2025-04.- 2025-07-18 - 13 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1081 (2026) 170830 Fulltext: 2503.11275 - PDF; document - PDF;

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High efficiency veto hadron calorimeter in the NA64 experiment at CERN / Andreev, Yu. M. ; Antonov, A. ; Ayala Torres, M. A. ; Banerjee, D. ; Banto Oberhauser, B. ; Bautin, V. ; Bernhard, J. ; Bisio, P. ; Bondì, M. ; Celentano, A. et al. /NA64
The NA64 is a fixed-target experiment at the CERN SPS designed to search for Light particle Dark Matter (LDM) candidates with masses in the sub-GeV range. During the 2016-2022 runs, the experiment obtained the world-leading constraints, leaving however part of the well-motivated region of parameter space suggested by benchmark LDM models still unexplored. [...]
CERN-EP-2025-049.- Geneva : CERN, 2025 Draft (restricted): PDF; Fulltext: PDF;

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Proof of principle for a light dark matter search with low-energy positron beams at NA64 / NA64 Collaboration
Thermal light dark matter (LDM) with particle masses in the 1 MeV - 1 GeV range could successfully explain the observed dark matter abundance as a relic from the primordial Universe. In this picture, a new feeble interaction acts as a "portal" between the Standard Model and LDM particles, allowing for the exploration of this paradigm at accelerator experiments. [...]
arXiv:2502.04053.- 2025-06-26 - 34 p. - Published in : JHEP 2506 (2025) 256 Fulltext: 2502.04053 - PDF; document - PDF;

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Proof of principle for a light dark matter search with low-energy positron beams at NA64 / Andreev, Yu. M. ; Antonov, A. ; Ayala Torres, M. A. ; Banerjee, D. ; Banto Oberhauser, B. ; Bautin, V. ; Bernhard, J. ; Bisio, P. ; Bondì, M. ; Celentano, A. et al.
Thermal light dark matter (LDM) with particle masses in the 1 MeV - 1 GeV range could successfully explain the observed dark matter abundance as a relic from the primordial Universe. In this picture, a new feeble interaction acts as a “portal” between the Standard Model and LDM particles, allowing for the exploration of this paradigm at accelerator experiments. [...]
CERN-EP-2025-016.- Geneva : CERN, 2025 Draft (restricted): PDF; Fulltext: PDF;

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Dark sector searches at NA64-$e$ / Celentano, Andrea (INFN, Genoa) /NA64 Collaboration
The Light Dark Matter (LDM) hypothesis identifies dark matter particles with new sub-GeV "Hidden Sector'' states, neutral under Standard Model interactions and interfacing with our world through a new force. In the simplest model, the new interaction is mediated by a massive vector particle, also called "dark photon'' ($A^\prime$), kinetically mixed with the ordinary photon. [...]
2024 - 6 p. - Published in : PoS WIFAI2023 (2024) 014 Fulltext: PDF;
In : Workshop Italiano sulla Fisica ad Alta Intensita (WIFAI 2023), Rome, Italy, 8 - 10 Nov 2023, pp.014

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Dark-Sector Search via Pion-Produced η and η0 Mesons Decaying Invisibly in the NA64h Detector / NA64 Collaboration
We present the first results from a proof-of-concept search for dark sectors via invisible decays of pseudoscalar η and η′ mesons in the NA64h experiment at the CERN SPS. Our novel technique uses the charge-exchange reaction of 50 GeV π− on nuclei of an active target as the source of neutral mesons. [...]
arXiv:2406.01990; CERN-EP-2024-153.- Geneva : CERN, 2024-09-20 - 6 p. - Published in : Phys. Rev. Lett. 133 (2024) 121803 Draft (restricted): PDF; Fulltext: CERN-EP-DRAFT-NA64-2024-002_v2 - PDF; CERN-EP-2024-153 - PDF; preprint: PDF; publication: PDF;

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First constraints on the L$_{μ}$− L$_{τ}$ explanation of the muon g-2 anomaly from NA64-e at CERN / NA64 Collaboration
The inclusion of an additional $U(1)$ gauge $L_\mu-L_\tau$ symmetry would release the tension between the measured and the predicted value of the anomalous muon magnetic moment: this paradigm assumes the existence of a new, light $Z^\prime$ vector boson, with dominant coupling to $\mu$ and $\tau$ leptons and interacting with electrons via a loop mechanism. The $L_\mu-L_\tau$ model can also explain the Dark Matter relic abundance, by assuming that the $Z^\prime$ boson acts as a ``portal'' to a new Dark Sector of particles in Nature, not charged under known interactions. [...]
arXiv:2404.06982; CERN-EP-2024-103.- Geneva : CERN, 2024-07-23 - 15 p. - Published in : JHEP 2407 (2024) 212 Draft (restricted): PDF; Fulltext: CERN-EP-2024-103 - PDF; NA64-PAPER-24-02 - PDF; 2404.06982 - PDF; document - PDF;

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10.

Measurement for the $e^+$ beam purity at the CERN-SPS H8 beamline / Bisio, Pietro (INFN e Universita Genova (IT)) ; Celentano, Andrea (INFN e Universita Genova (IT)) ; Marsicano, Luca (INFN e Universita Genova (IT)) ; Bondi, Mariangela (INFN e Laboratori Nazionali di Frascati (IT)) ; Marini, Anna (INFN e Universita Genova (IT))
This Note describes the $e^+$-beam purity measurement for the H8 beamline of the Super Proton Synchrotron (SPS) at CERN. This study was performed in the context of the POKERINO prototype characterization, conducted during a week of measurements in the summer of 2023 at the H8 beamline. [...]
CERN-OPEN-2024-002; POKER-NOTE-23-12.- Geneva : CERN, 2024 - 4 p. Preprint: PDF; External link: Approve this document (restricted)

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Se også: lignende forfatternavn
42	Celentano, A
12	Celentano, Andrea

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