Search for inelastic scattering of WIMP dark matter in XENON1T

E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, L. Althueser, F. D. Amaro, S. Andaloro, E. Angelino, J. R. Angevaare, V. C. Antochi, F. Arneodo, L. Baudis, B. Bauermeister, L. Bellagamba, M. L. Benabderrahmane, A. Brown, E. Brown, S. Bruenner, G. Bruno, R. BudnikC. Capelli, J. M.R. Cardoso, D. Cichon, B. Cimmino, M. Clark, D. Coderre, A. P. Colijn, J. Conrad, J. Cuenca, J. P. Cussonneau, M. P. Decowski, A. Depoian, P. Di Gangi, A. Di Giovanni, R. Di Stefano, S. Diglio, A. Elykov, A. D. Ferella, W. Fulgione, P. Gaemers, R. Gaior, M. Galloway, F. Gao, L. Grandi, C. Hils, K. Hiraide, L. Hoetzsch, J. Howlett, M. Iacovacci, Y. Itow, F. Joerg, N. Kato, S. Kazama, M. Kobayashi, G. Koltman, A. Kopec, H. Landsman, R. F. Lang, L. Levinson, S. Liang, Q. Lin, S. Lindemann, M. Lindner, F. Lombardi, J. Long, J. A.M. Lopes, Y. Ma, C. Macolino, J. Mahlstedt, A. Mancuso, L. Manenti, A. Manfredini, F. Marignetti, T. Marrodan Undagoitia, K. Martens, J. Masbou, D. Masson, S. Mastroianni, M. Messina, K. Miuchi, K. Mizukoshi, A. Molinario, K. Morå, S. Moriyama, Y. Mosbacher, M. Murra, J. Naganoma, K. Ni, U. Oberlack, K. Odgers, J. Palacio, B. Pelssers, R. Peres, J. Pienaar, M. Pierre, V. Pizzella, G. Plante, J. Qi, J. Qin, D. Ramírez Garciá, S. Reichard, A. Rocchetti, N. Rupp, J. M.F. Dos Santos, G. Sartorelli, N. Sarcević, M. Scheibelhut, J. Schreiner, D. Schulte, H. Schulze Eißing, M. Schumann, L. Scotto Lavina, M. Selvi, F. Semeria, P. Shagin, E. Shockley, M. Silva, H. Simgen, A. Takeda, C. Therreau, D. Thers, F. Toschi, G. Trinchero, C. Tunnell, K. Valerius, M. Vargas, G. Volta, Y. Wei, C. Weinheimer, M. Weiss, D. Wenz, C. Wittweg, T. Wolf, Z. Xu, M. Yamashita, J. Ye, G. Zavattini, Y. Zhang, T. Zhu, J. P. Zopounidis

Research output: Contribution to journalArticlepeer-review


We report the results of a search for the inelastic scattering of weakly interacting massive particles (WIMPs) in the XENON1T dark matter experiment. Scattering off Xe129 is the most sensitive probe of inelastic WIMP interactions, with a signature of a 39.6 keV deexcitation photon detected simultaneously with the nuclear recoil. Using an exposure of 0.83 tonne-years, we find no evidence of inelastic WIMP scattering with a significance of more than 2σ. A profile-likelihood ratio analysis is used to set upper limits on the cross section of WIMP-nucleus interactions. We exclude new parameter space for WIMPs heavier than 100 GeV/c2, with the strongest upper limit of 3.3×10-39 cm2 for 130 GeV/c2 WIMPs at 90% confidence level.

Original languageEnglish (US)
Article number063028
JournalPhysical Review D
Issue number6
StatePublished - Mar 19 2021

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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