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Cazzaniga C, Odagiu P, Depero E, Molina Bueno L, Andreev YM, Banerjee D, Bernhard J, Burtsev VE, Charitonidis N, Chumakov AG, Cooke D, Crivelli P, Dermenev AV, Donskov SV, Dusaev RR, Enik T, Feshchenko A, Frolov VN, Gardikiotis A, Gerassimov SG, Girod S, Gninenko SN, Hösgen M, Kachanov VA, Karneyeu AE, Kekelidze G, Ketzer B, Kirpichnikov DV, Kirsanov MM, Kolosov VN, Konorov IV, Kovalenko SG, Kramarenko VA, Kravchuk LV, Krasnikov NV, Kuleshov SV, Lyubovitskij VE, Lysan V, Matveev VA, Mikhailov YV, Peshekhonov DV, Polyakov VA, Radics B, Rojas R, Rubbia A, Samoylenko VD, Shchukin D, Sieber H, Tikhomirov VO, Tlisova IV, Tlisov DA, Toropin AN, Trifonov AY, Vasilishin BI, Arenas GV, Volkov PV, Volkov VY, Ulloa P. Probing the explanation of the muon (g-2) anomaly and thermal light dark matter with the semi-visible dark photon channel. Eur Phys J C Part Fields 2021; 81:959. [PMID: 34790033 PMCID: PMC8557162 DOI: 10.1140/epjc/s10052-021-09705-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 09/30/2021] [Indexed: 05/28/2023]
Abstract
We report the results of a search for a new vector boson ( A ' ) decaying into two dark matter particles χ 1 χ 2 of different mass. The heavier χ 2 particle subsequently decays to χ 1 and an off-shell Dark Photon A ' ∗ → e + e - . For a sufficiently large mass splitting, this model can explain in terms of new physics the recently confirmed discrepancy observed in the muon anomalous magnetic moment at Fermilab. Remarkably, it also predicts the observed yield of thermal dark matter relic abundance. A detailed Monte-Carlo simulation was used to determine the signal yield and detection efficiency for this channel in the NA64 setup. The results were obtained re-analyzing the previous NA64 searches for an invisible decay A ' → χ χ ¯ and axion-like or pseudo-scalar particles a → γ γ . With this method, we exclude a significant portion of the parameter space justifying the muon g-2 anomaly and being compatible with the observed dark matter relic density for A ' masses from 2 m e up to 390 MeV and mixing parameter ε between 3 × 10 - 5 and 2 × 10 - 2 .
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Affiliation(s)
- C. Cazzaniga
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - P. Odagiu
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Institute of Physics, École polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - E. Depero
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - L. Molina Bueno
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
- Instituto de Fisica Corpuscular (CSIC/UV), Carrer del Catedrátic José Beltrán Martinez, 2, 46980 Paterna, Valencia Spain
| | | | - D. Banerjee
- CERN, EN-EA, 1211 Geneva 23, Switzerland
- University of Illinois at Urbana Champaign, Urbana, IL 61801-3080 USA
| | | | - V. E. Burtsev
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | | | - A. G. Chumakov
- Tomsk State Pedagogical University, 634061 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - D. Cooke
- UCL Departement of Physics and Astronomy, University College London, Gower St., London, WC1E 6BT UK
| | - P. Crivelli
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | | | - S. V. Donskov
- State Scientific Center of the Russian Federation Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’ (IHEP), 142281 Protvino, Russia
| | - R. R. Dusaev
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - T. Enik
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A. Feshchenko
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - V. N. Frolov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - A. Gardikiotis
- Physics Department, University of Patras, 265 04 Patras, Greece
| | - S. G. Gerassimov
- Physik Department, Technische Universität München, 85748 Garching, Germany
- P.N. Lebedev Physical Institute, 119 991 Moscow, Russia
| | - S. Girod
- CERN, EN-EA, 1211 Geneva 23, Switzerland
| | | | - M. Hösgen
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
| | - V. A. Kachanov
- State Scientific Center of the Russian Federation Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’ (IHEP), 142281 Protvino, Russia
| | | | - G. Kekelidze
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - B. Ketzer
- Helmholtz-Institut für Strahlen-und Kernphysik, Universität Bonn, 53115 Bonn, Germany
| | | | | | - V. N. Kolosov
- State Scientific Center of the Russian Federation Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’ (IHEP), 142281 Protvino, Russia
| | - I. V. Konorov
- Physik Department, Technische Universität München, 85748 Garching, Germany
- P.N. Lebedev Physical Institute, 119 991 Moscow, Russia
| | - S. G. Kovalenko
- Departamento de Ciencias Físicas, Universidad Andres Bello, Sazié 2212, Piso 7, Santiago, Chile
- Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR), ICN2019_044, ANID, Santiago, Chile
| | - V. A. Kramarenko
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
| | | | - N. V. Krasnikov
- Institute for Nuclear Research, 117312 Moscow, Russia
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - S. V. Kuleshov
- Departamento de Ciencias Físicas, Universidad Andres Bello, Sazié 2212, Piso 7, Santiago, Chile
- Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR), ICN2019_044, ANID, Santiago, Chile
| | - V. E. Lyubovitskij
- Tomsk State Pedagogical University, 634061 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
- Millennium Institute for Subatomic Physics at the High-Energy Frontier (SAPHIR), ICN2019_044, ANID, Santiago, Chile
- Universidad Técnica Federico Santa María, 2390123 Valparaiso, Chile
| | - V. Lysan
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - V. A. Matveev
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Yu. V. Mikhailov
- State Scientific Center of the Russian Federation Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’ (IHEP), 142281 Protvino, Russia
| | | | - V. A. Polyakov
- State Scientific Center of the Russian Federation Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’ (IHEP), 142281 Protvino, Russia
| | - B. Radics
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - R. Rojas
- Universidad Técnica Federico Santa María, 2390123 Valparaiso, Chile
| | - A. Rubbia
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | - V. D. Samoylenko
- State Scientific Center of the Russian Federation Institute for High Energy Physics of National Research Center ‘Kurchatov Institute’ (IHEP), 142281 Protvino, Russia
| | - D. Shchukin
- P.N. Lebedev Physical Institute, 119 991 Moscow, Russia
| | - H. Sieber
- ETH Zürich Institute for Particle Physics and Astrophysics, 8093 Zurich, Switzerland
| | | | - I. V. Tlisova
- Institute for Nuclear Research, 117312 Moscow, Russia
| | - D. A. Tlisov
- Institute for Nuclear Research, 117312 Moscow, Russia
| | - A. N. Toropin
- Institute for Nuclear Research, 117312 Moscow, Russia
| | - A. Yu. Trifonov
- Tomsk State Pedagogical University, 634061 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | | | | | - P. V. Volkov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - V. Yu. Volkov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - P. Ulloa
- Departamento de Ciencias Físicas, Universidad Andres Bello, Sazié 2212, Piso 7, Santiago, Chile
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