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First Results on the Scalar WIMP-Pion Coupling, Using the XENON1T Experiment

Journal
Date Issued
2019
Author(s)
Aprile, E.
•
Aalbers, J.
•
Agostini, F.
•
Alfonsi, M.
•
Althueser, L.
•
Amaro, F. D.
•
Anthony, M.
•
Antochi, V. C.
•
Arneodo, F.
•
Baudis, L.
•
Bauermeister, B.
•
Benabderrahmane, M. L.
•
Berger, T.
•
Breur, P. A.
•
Brown, A.
•
Brown, E.
•
Bruenner, S.
•
•
Budnik, R.
•
Capelli, C.
•
Cardoso, J. M. R.
•
Cichon, D.
•
Coderre, D.
•
Colijn, A. P.
•
Conrad, J.
•
Cussonneau, J. P.
•
Decowski, M. P.
•
de Perio, P.
•
di Gangi, P.
•
di Giovanni, A.
•
Diglio, S.
•
Elykov, A.
•
Eurin, G.
•
Fei, J.
•
Ferella, A. D.
•
Fieguth, A.
•
•
Gallo Rosso, A.
•
Galloway, M.
•
Gao, F.
•
Garbini, M.
•
Grandi, L.
•
Greene, Z.
•
Hasterok, C.
•
Hogenbirk, E.
•
Howlett, J.
•
Iacovacci, M.
•
Itay, R.
•
Joerg, F.
•
Kaminsky, B.
•
Kazama, S.
•
Kish, A.
•
Koltman, G.
•
Kopec, A.
•
Landsman, H.
•
Lang, R. F.
•
Levinson, L.
•
Lin, Q.
•
Lindemann, S.
•
Lindner, M.
•
Lombardi, F.
•
Lopes, J. A. M.
•
López Fune, E.
•
Macolino, C.
•
Mahlstedt, J.
•
Manfredini, A.
•
Marignetti, F.
•
Marrodán Undagoitia, T.
•
Masbou, J.
•
Masson, D.
•
Mastroianni, S.
•
Messina, M.
•
Micheneau, K.
•
Miller, K.
•
•
Morâ, K.
•
Murra, M.
•
Naganoma, J.
•
Ni, K.
•
Oberlack, U.
•
Odgers, K.
•
Pelssers, B.
•
Piastra, F.
•
Pienaar, J.
•
Pizzella, V.
•
Plante, G.
•
Podviianiuk, R.
•
Priel, N.
•
Qiu, H.
•
Ramírez García, D.
•
Reichard, S.
•
Riedel, B.
•
Rizzo, A.
•
Rocchetti, A.
•
Rupp, N.
•
Dos Santos, J. M. F.
•
Sartorelli, G.
•
Šarčević, N.
•
Scheibelhut, M.
•
Schindler, S.
•
Schreiner, J.
•
Schulte, D.
•
Schumann, M.
•
Scotto Lavina, L.
•
Selvi, M.
•
Shagin, P.
•
Shockley, E.
•
Silva, M.
•
Simgen, H.
•
Therreau, C.
•
Thers, D.
•
Toschi, F.
•
•
Tunnell, C.
•
Upole, N.
•
Vargas, M.
•
Wack, O.
•
Wang, H.
•
Wang, Z.
•
Wei, Y.
•
Weinheimer, C.
•
Wenz, D.
•
Wittweg, C.
•
Wulf, J.
•
Ye, J.
•
Zhang, Y.
•
Zhu, T.
•
Zopounidis, J. P.
•
Hoferichter, M.
•
Klos, P.
•
Menéndez, J.
•
Schwenk, A.
•
Xenon Collaboration
DOI
Abstract
We present first results on the scalar coupling of weakly interacting massive particles (WIMPs) to pions from 1 t yr of exposure with the XENON1T experiment. This interaction is generated when the WIMP couples to a virtual pion exchanged between the nucleons in a nucleus. In contrast to most nonrelativistic operators, these pion-exchange currents can be coherently enhanced by the total number of nucleons and therefore may dominate in scenarios where spin-independent WIMP-nucleon interactions are suppressed. Moreover, for natural values of the couplings, they dominate over the spin-dependent channel due to their coherence in the nucleus. Using the signal model of this new WIMP-pion channel, no significant excess is found, leading to an upper limit cross section of 6.4 ×10-46 cm2 (90% confidence level) at 30 GeV /c2 WIMP mass.
Volume
122
Issue
7
Start page
071301
Uri
Url
Issn Identifier
0031-9007
Ads BibCode
2019PhRvL.122g1301A
Rights
open.access
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