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Search for Light Dark Matter in Low-Energy Ionization Signals from XENONnT

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arxiv 2411.15289 v2 pith:LIMCJ5Q4 submitted 2024-11-22 hep-ex

E. Aprile , J. Aalbers , K. Abe , S. Ahmed Maouloud , L. Althueser , B. Andrieu , E. Angelino , D. Antón Martin
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F. Arneodo L. Baudis M. Bazyk L. Bellagamba R. Biondi A. Bismark K. Boese A. Brown G. Bruno R. Budnik C. Cai C. Capelli J. M. R. Cardoso A. P. Cimental Chávez A. P. Colijn J. Conrad J. J. Cuenca-García V. D'Andrea L. C. Daniel Garcia M. P. Decowski A. Deisting C. Di Donato P. Di Gangi S. Diglio K. Eitel S. el Morabit A. Elykov A. D. Ferella C. Ferrari H. Fischer T. Flehmke M. Flierman W. Fulgione C. Fuselli P. Gaemers R. Gaior M. Galloway F. Gao S. Ghosh R. Giacomobono R. Glade-Beucke L. Grandi J. Grigat H. Guan M. Guida P. Gyorgy R. Hammann A. Higuera C. Hils L. Hoetzsch N. F. Hood M. Iacovacci Y. Itow J. Jakob F. Joerg Y. Kaminaga M. Kara P. Kavrigin S. Kazama M. Kobayashi D. Koke A. Kopec H. Landsman R. F. Lang L. Levinson I. Li S. Li S. Liang Y.-T. Lin S. Lindemann M. Lindner K. Liu M. Liu J. Loizeau F. Lombardi J. Long J. A. M. Lopes T. Luce Y. Ma C. Macolino J. Mahlstedt A. Mancuso L. Manenti F. Marignetti T. Marrodán Undagoitia K. Martens J. Masbou E. Masson S. Mastroianni A. Melchiorre J. Merz M. Messina A. Michael K. Miuchi A. Molinario S. Moriyama K. Mor{aa} Y. Mosbacher M. Murra J. Müller K. Ni U. Oberlack B. Paetsch Y. Pan Q. Pellegrini R. Peres C. Peters J. Pienaar M. Pierre G. Plante T. R. Pollmann L. Principe J. Qi J. Qin D. Ramírez García M. Rajado R. Singh L. Sanchez J. M. F. dos Santos I. Sarnoff G. Sartorelli J. Schreiner P. Schulte H. Schulze Ei{ss}ing M. Schumann L. Scotto Lavina M. Selvi F. Semeria P. Shagin S. Shi J. Shi M. Silva H. Simgen C. Szyszka A. Takeda P.-L. Tan D. Thers F. Toschi G. Trinchero C. D. Tunnell F. Tönnies K. Valerius S. Vecchi S. Vetter F. I. Villazon Solar G. Volta C. Weinheimer M. Weiss D. Wenz C. Wittweg V. H. S. Wu Y. Xing D. Xu Z. Xu M. Yamashita L. Yang J. Ye L. Yuan G. Zavattini M. Zhong
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classification hep-ex
keywords darkmatterheavylightlimitsmatter-electronmediatorsearch
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We report on a blinded search for dark matter with single- and few-electron signals in the first science run of XENONnT relying on a novel detector response framework that is physics-model-dependent. We derive 90\% confidence upper limits for dark matter-electron interactions. Heavy and light mediator cases are considered for the standard halo model and dark matter up-scattered in the Sun. We set stringent new limits on dark matter-electron scattering via a heavy mediator with a mass within 10-20\,MeV/$c^2$ and electron absorption of axion-like particles and dark photons for $m_\chi$ below 0.186\,keV/$c^2$.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Light Dark Matter Search with 7.8 Tonne-Year of Ionization-Only Data in XENONnT

    hep-ex 2026-01 conditional novelty 6.0 of 10

    An S2-only analysis of 7.83 tonne-years of XENONnT data finds no dark matter excess and sets 90% CL limits, e.g. 6.0e-45 cm^2 for spin-independent scattering at 5 GeV/c^2.

  2. Freeze-in Production of Non-Abelian Millicharged Vector Dark Matter

    hep-ph 2025-12 conditional novelty 6.0 of 10

    A hidden SU(2) gauge sector broken to a massless dark photon can produce vector dark matter via freeze-in with portal couplings near 10^-7.

  3. Direct detection of solar chameleons with electron recoil data from XENONnT

    hep-ph 2025-11 conditional novelty 5.0 of 10

    XENONnT electron-recoil data bound solar chameleons to log10 β_eff < −6.9, independent of the potential index n for inverse power-law chameleons at the dark-energy scale.

  4. Sub-GeV Dark Matter Under Pressure from Direct Detection

    hep-ph 2025-07 conditional novelty 4.0 of 10

    PandaX-4T S2-only data yields world-leading sub-GeV dark matter-electron scattering limits for heavy mediators in the 20-200 MeV range, although the result largely overlaps with the collaboration's own just-released analysis.

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