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arXiv · 1705.05830

Search for WIMP Inelastic Scattering off Xenon Nuclei with XENON100

E. Aprile·J. Aalbers·F. Agostini·M. Alfonsi·F. D. Amaro·M. Anthony·F. Arneodo·P. Barrow·L. Baudis·B. Bauermeister·M. L. Benabderrahmane·T. Berger·P. A. Breur·A. Brown·E. Brown·S. Bruenner·G. Bruno·R. Budnik·L. Bütikofer·J. Calvén·J. M. R. Cardoso·M. Cervantes·D. Cichon·D. Coderre·A. P. Colijn·J. Conrad·J. P. Cussonneau·M. P. Decowski·P. de Perio·P. Di Gangi·A. Di Giovanni·S. Diglio·G. Eurin·J. Fei·A. D. Ferella·A. Fieguth·W. Fulgione·A. Gallo Rosso·M. Galloway·F. Gao·M. Garbini·C. Geis·L. W. Goetzke·Z. Greene·C. Grignon·C. Hasterok·E. Hogenbirk·R. Itay·B. Kaminsky·S. Kazama·G. Kessler·A. Kish·H. Landsman·R. F. Lang·D. Lellouch·L. Levinson·Q. Lin·S. Lindemann·M. Lindner·F. Lombardi·J. A. M. Lopes·A. Manfredini·I. Maris·T. Marrodán Undagoitia·J. Masbou·F. V. Massoli·D. Masson·D. Mayani·M. Messina·K. Micheneau·A. Molinario·K. Mora·M. Murra·J. Naganoma·K. Ni·U. Oberlack·P. Pakarha·B. Pelssers·R. Persiani·F. Piastra·J. Pienaar·V. Pizzella·M. -C. Piro·G. Plante·N. Priel·L. Rauch·S. Reichard·C. Reuter·A. Rizzo·S. Rosendahl·N. Rupp·J. M. F. dos Santos·G. Sartorelli·M. Scheibelhut·S. Schindler·J. Schreiner·M. Schumann·L. Scotto Lavina·M. Selvi·P. Shagin
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Abstract

We present the first constraints on the spin-dependent, inelastic scattering cross section of Weakly Interacting Massive Particles (WIMPs) on nucleons from XENON100 data with an exposure of 7.64$\times$10$^3$\,kg\,day. XENON100 is a dual-phase xenon time projection chamber with 62\,kg of active mass, operated at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy and designed to search for nuclear recoils from WIMP-nucleus interactions. Here we explore inelastic scattering, where a transition to a low-lying excited nuclear state of $^{129}$Xe is induced. The experimental signature is a nuclear recoil observed together with the prompt de-excitation photon. We see no evidence for such inelastic WIMP-$^{129}$Xe interactions. A profile likelihood analysis allows us to set a 90\% C.L. upper limit on the inelastic, spin-dependent WIMP-nucleon cross section of $3.3 \times 10^{-38}$\,cm$^{2}$ at 100\,GeV/c$^2$. This is the most constraining result to date, and sets the pathway for an analysis of this interaction channel in upcoming, larger dual-phase xenon detectors.

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E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, F. D. Amaro, M. Anthony, F. Arneodo, P. Barrow, L. Baudis, B. Bauermeister, M. L. Benabderrahmane, T. Berger, P. A. Breur, A. Brown, E. Brown, S. Bruenner, G. Bruno, R. Budnik, L. Bütikofer, J. Calvén, J. M. R. Cardoso, M. Cervantes, D. Cichon, D. Coderre, A. P. Colijn, J. Conrad, J. P. Cussonneau, M. P. Decowski, P. de Perio, P. Di Gangi, A. Di Giovanni, S. Diglio, G. Eurin, J. Fei, A. D. Ferella, A. Fieguth, W. Fulgione, A. Gallo Rosso, M. Galloway, F. Gao, M. Garbini, C. Geis, L. W. Goetzke, Z. Greene, C. Grignon, C. Hasterok, E. Hogenbirk, R. Itay, B. Kaminsky, S. Kazama, G. Kessler, A. Kish, H. Landsman, R. F. Lang, D. Lellouch, L. Levinson, Q. Lin, S. Lindemann, M. Lindner, F. Lombardi, J. A. M. Lopes, A. Manfredini, I. Maris, T. Marrodán Undagoitia, J. Masbou, F. V. Massoli, D. Masson, D. Mayani, M. Messina, K. Micheneau, A. Molinario, K. Mora, M. Murra, J. Naganoma, K. Ni, U. Oberlack, P. Pakarha, B. Pelssers, R. Persiani, F. Piastra, J. Pienaar, V. Pizzella, M. -C. Piro, G. Plante, N. Priel, L. Rauch, S. Reichard, C. Reuter, A. Rizzo, S. Rosendahl, N. Rupp, J. M. F. dos Santos, G. Sartorelli, M. Scheibelhut, S. Schindler, J. Schreiner, M. Schumann, L. Scotto Lavina, M. Selvi, P. Shagin. 2017-05-01. Search for WIMP Inelastic Scattering off Xenon Nuclei with XENON100. https://doi.org/10.1103/physrevd.96.022008

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