Authors
E Aprile, J Aalbers, K Abe, M Adrover, S Ahmed Maouloud, L Althueser, B Andrieu, E Angelino, D Antón Martin, S R Armbruster, F Arneodo, L Baudis, M Bazyk, L Bellagamba, R Biondi, A Bismark, K Boese, R M Braun, G Bruni, 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, R Elleboro, A Elykov, A D Ferella, C Ferrari, H Fischer, T Flehmke, M Flierman, R Frankel, D Fuchs, W Fulgione, C Fuselli, R Gaior, F Gao, R Giacomobono, F Girard, 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, S Kazama, P Kharbanda, M Kobayashi, D Koke, K Kooshkjalali, A Kopec, H Landsman, R F Lang, L Levinson, I Li, S Li, S Liang, Z Liang, Y-T Lin, S Lindemann, M Lindner, K Liu, M Liu, J Loizeau, F Lombardi, J A M Lopes, G M Lucchetti, T Luce, Y Ma, C Macolino, J Mahlstedt, F Marignetti, T Marrodán Undagoitia, K Martens, J Masbou, S Mastroianni, V Mazza, A Melchiorre, J Merz, M Messina, A J P Michel, K Miuchi, A Molinario, S Moriyama, K Morå, M Murra, J Müller, K Ni, C T Oba Ishikawa, U Oberlack, S Ouahada, B Paetsch, Y Pan, Q Pellegrini, R Peres, J Pienaar, M Pierre, G Plante, T R Pollmann, A Prajapati, L Principe, J Qin, D Ramírez García, A Ravindran, A Razeto, R Singh, L Sanchez, J M F Dos Santos, I Sarnoff, G Sartorelli, J Schreiner, P Schulte, H Schulze Eißing, M Schumann, L Scotto Lavina, M Selvi, F Semeria, F N Semler, P Shagin, S Shi, H Simgen, Z Song, A Stevens, C Szyszka, A Takeda, Y Takeuchi, P-L Tan, D Thers, G Trinchero, C D Tunnell, K Valerius, S Vecchi, S Vetter, G Volta, C Weinheimer, M Weiss, D Wenz, C Wittweg, V H S Wu, Y Xing, D Xu, Z Xu, M Yamashita, J Yang, L Yang, J Ye, M Yoshida, L Yuan, G Zavattini, Y Zhao, M Zhong, T Zhu, XENON Collaboration
Published in
Physical review letters. Volume 137. Issue 12. Pages 121001. Sep 18, 2026.
Abstract
We report on a search for sub-GeV dark matter upscattered via the solar reflection mechanism in the heavy mediator scenario. Under the standard halo model, keV-MeV dark matter produces nuclear recoils with energies below the detection threshold of liquid xenon time projection chambers. We enhance sensitivity to low-mass dark matter (DM) by considering dark matter-electron scattering, employing dedicated event selections to reduce the detection threshold and exploiting the additional kinetic energy imparted to the dark matter particle by solar upscattering. Using XENON1T ionization-only and XENONnT low-energy electronic recoil datasets, we exclude previously unconstrained DM-electron scattering cross section for masses between 4.6 and 20 keV/c^{2} and between 0.2 and 2 MeV/c^{2}, reaching a minimum of 3.41×10^{-39} cm^{2} for a mass of 0.3 MeV/c^{2} at 90% confidence level.
PMID:
42826946
Bibliographic data and abstract were imported from PubMed on 03 Oct 2026.
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