--- title: "First nuclear ultraheavy dark matter search in argon time projection chambers with the DarkSide-50 experiment" description: "We report on the first search for nuclear ultraheavy dark matter (UHDM) in a dual-phase liquid argon time projection chamber using the DarkSide-50 experiment. Unlike conventional weakly interacting massive particles, a nuclear UHDM model may be composed of many dark nucleons and scatter numerous times while passing…" datePublished: "2026-09-03" lastmod: "2026-10-04T17:18:42+00:00" authors: - "P. Agnes" - "I. F. Albuquerque" - "T. Alexander" - "A. K. Alton" - "M. Ave" - "H. O. Back" - "G. Batignani" - "K. Biery" - "V. Bocci" - "W. M. Bonivento" - "B. Bottino" - "S. Bussino" - "M. Cadeddu" - "M. Cadoni" - "F. Calaprice" - "A. Caminata" - "M. D. Campos" - "N. Canci" - "M. Caravati" - "N. Cargioli" - "M. Cariello" - "M. Carlini" - "P. Cavalcante" - "S. Chashin" - "A. Chepurnov" - "D. D’Angelo" - "S. Davini" - "S. De Cecco" - "A. V. Derbin" - "M. D’Incecco" - "C. Dionisi" - "F. Dordei" - "M. Downing" - "M. Fairbairn" - "G. Fiorillo" - "D. Franco" - "F. Gabriele" - "C. Galbiati" - "C. Ghiano" - "C. Giganti" - "G. K. Giovanetti" - "V. Goicoechea Casanueva" - "A. M. Goretti" - "G. Grilli di Cortona" - "A. Grobov" - "M. Gromov" - "M. Guam" - "M. Gulino" - "B. R. Hackett" - "K. Herner" - "T. Hessel" - "F. Hubaut" - "E. V. Hungerford" - "An. Ianni" - "V. Ippolito" - "K. Keeter" - "C. L. Kendziora" - "M. Kimura" - "I. Kochanek" - "D. Korablev" - "G. Korga" - "A. Kubankin" - "J. Kumar" - "M. Kuss" - "M. La Commara" - "M. Lai" - "X. Li" - "M. Lissia" - "O. Lychagina" - "I. N. Machulin" - "L. P. Mapelli" - "S. M. Mari" - "J. Maricic" - "A. Messina" - "R. Milincic" - "J. Monroe" - "M. Morrocchi" - "V. N. Muratova" - "P. Musico" - "A. O. Nozdrina" - "A. Oleinik" - "F. Ortica" - "L. Pagani" - "M. Pallavicini" - "L. Pandola" - "E. Pantic" - "E. Paoloni" - "K. Pelczar" - "N. Pelliccia" - "S. Piacentini" - "A. Pocar" - "M. Poehlmann" - "S. Pordes" - "S. S. Poudel" - "P. Pralavorio" - "D. Price" - "F. Ragusa" - "M. Razeti" - "A. L. Renshaw" - "M. Rescigno" - "A. Romani" - "D. Sablone" - "O. Samoylov" - "S. Sanfilippo" - "C. Savarese" - "B. Schlitzer" - "D. A. Semenov" - "A. Sheshukov" - "M. D. Skorokhvatov" - "O. Smirnov" - "A. Sotnikov" - "S. Stracka" - "Y. Suvorov" - "R. Tartaglia" - "G. Testera" - "A. Tonazzo" - "E. V. Unzhakov" - "A. Vishneva" - "R. B. Vogelaar" - "M. Wada" - "H. Wang" - "Y. Wang" - "S. Westerdale" - "M. M. Wojcik" - "X. Xiao" - "C. Yang" - "G. Zuzel" journal: "Physical Review D" publisher: "American Physical Society (APS)" doi: "10.1103/r3zg-zlfg" publicationType: "journal-article" schemaType: "ScholarlyArticle" volume: "114" issue: "5" license: "https://creativecommons.org/licenses/by/4.0/" sponsor: "National Science Foundation; Instituto Nazionale di Fisica Nucleare; U.S. Department of Energy; Narodowe Centrum Nauki; Institut National de Physique Nucléaire et de Physique des Particules; Labex UnivEarthS; Fundação de Amparo à Pesquisa do Estado de São Paulo; Ministry of Education and Science of the Russian Federation; Fundacja na rzecz Nauki Polskiej; European Regional Development Fund; Horizon 2020 Framework Programme; Science and Technology Facilities Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico; Polish Ministry for Education and Science; Interdisciplinary Scientific and Educational School of Moscow University" language: "en-GB" slug: "10.1103-r3zg-zlfg" --- # First nuclear ultraheavy dark matter search in argon time projection chambers with the DarkSide-50 experiment **Authors:** P. Agnes, I. F. Albuquerque, T. Alexander, A. K. Alton, M. Ave, H. O. Back, G. Batignani, K. Biery, V. Bocci, W. M. Bonivento, B. Bottino, S. Bussino, M. Cadeddu, M. Cadoni, F. Calaprice, A. Caminata, M. D. Campos, N. Canci, M. Caravati, N. Cargioli, M. Cariello, M. Carlini, P. Cavalcante, S. Chashin, A. Chepurnov, D. D’Angelo, S. Davini, S. De Cecco, A. V. Derbin, M. D’Incecco, C. Dionisi, F. Dordei, M. Downing, M. Fairbairn, G. Fiorillo, D. Franco, F. Gabriele, C. Galbiati, C. Ghiano, C. Giganti, G. K. Giovanetti, V. Goicoechea Casanueva, A. M. Goretti, G. Grilli di Cortona, A. Grobov, M. Gromov, M. Guam, M. Gulino, B. R. Hackett, K. Herner, T. Hessel, F. Hubaut, E. V. Hungerford, An. Ianni, V. Ippolito, K. Keeter, C. L. Kendziora, M. Kimura, I. Kochanek, D. Korablev, G. Korga, A. Kubankin, J. Kumar, M. Kuss, M. La Commara, M. Lai, X. Li, M. Lissia, O. Lychagina, I. N. Machulin, L. P. Mapelli, S. M. Mari, J. Maricic, A. Messina, R. Milincic, J. Monroe, M. Morrocchi, V. N. Muratova, P. Musico, A. O. Nozdrina, A. Oleinik, F. Ortica, L. Pagani, M. Pallavicini, L. Pandola, E. Pantic, E. Paoloni, K. Pelczar, N. Pelliccia, S. Piacentini, A. Pocar, M. Poehlmann, S. Pordes, S. S. Poudel, P. Pralavorio, D. Price, F. Ragusa, M. Razeti, A. L. Renshaw, M. Rescigno, A. Romani, D. Sablone, O. Samoylov, S. Sanfilippo, C. Savarese, B. Schlitzer, D. A. Semenov, A. Sheshukov, M. D. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Stracka, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, E. V. Unzhakov, A. Vishneva, R. B. Vogelaar, M. Wada, H. Wang, Y. Wang, S. Westerdale, M. M. Wojcik, X. Xiao, C. Yang, G. Zuzel **Journal:** Physical Review D **Publisher:** American Physical Society (APS) **Published:** 2026-09-03 **Volume:** 114 **Issue:** 5 **DOI:** [10.1103/r3zg-zlfg](https://dx.doi.org/10.1103/r3zg-zlfg) ## Abstract We report on the first search for nuclear ultraheavy dark matter (UHDM) in a dual-phase liquid argon time projection chamber using the DarkSide-50 experiment. Unlike conventional weakly interacting massive particles, a nuclear UHDM model may be composed of many dark nucleons and scatter numerous times while passing through the detector. Accounting for energy loss through the Earth’s overburden, we apply selection criteria optimized for multiscatter event topologies using the 532-day low-radiation campaign of the DarkSide-50 detector. Excluded limits on the UHDM-nucleon scattering cross section for dark nucleon masses of m χ = 10 , 50 , 100 , 500 GeV / c 2 are presented. ## Articles on this publication - [А если тёмная материя состоит из собственных гигантских «ядер»?](https://hanga.su/2744,2026)