@article{953dc72a3cbe45c8985f98e23ef26bf1,
title = "First Results on the Scalar WIMP-Pion Coupling, Using the XENON1T Experiment",
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.",
author = "{(XENON Collaboration)} and E. Aprile and J. Aalbers and F. Agostini and M. Alfonsi and L. Althueser and Amaro, {F. D.} and M. Anthony and Antochi, {V. C.} and F. Arneodo and L. Baudis and B. Bauermeister and Benabderrahmane, {M. L.} and T. Berger and Breur, {P. A.} and A. Brown and A. Brown and E. Brown and S. Bruenner and G. Bruno and R. Budnik and C. Capelli and Cardoso, {J. M.R.} and D. Cichon and D. Coderre and Colijn, {A. P.} and J. Conrad and Cussonneau, {J. P.} and Decowski, {M. P.} and {De Perio}, P. and {Di Gangi}, P. and {Di Giovanni}, A. and S. Diglio and A. Elykov and G. Eurin and J. Fei and Ferella, {A. D.} and A. Fieguth and W. Fulgione and {Gallo Rosso}, A. and M. Galloway and F. Gao and M. Garbini and L. Grandi and Z. Greene and C. Hasterok and E. Hogenbirk and J. Howlett and M. Iacovacci and R. Itay and F. Joerg",
note = "Funding Information: The XENON collaboration gratefully acknowledges support from the National Science Foundation, Swiss National Science Foundation, German Ministry for Education and Research, Max Planck Gesellschaft, Deutsche Forschungsgemeinschaft, Netherlands Organisation for Scientific Research (NWO), Netherlands eScience Center (NLeSC) with the support of the SURF Cooperative, Weizmann Institute of Science, Israeli Centers of Research Excellence (I-CORE), Pazy-Vatat, Initial Training Network Invisibles (Marie Curie Actions, PITNGA-2011-289442), Fundacao para a Ciencia e a Tecnologia, Region des Pays de la Loire, Knut and Alice Wallenberg Foundation, Kavli Foundation, Abeloe Fellowship, and Istituto Nazionale di Fisica Nucleare. Data processing is performed using infrastructures from the Open Science Grid and European Grid Initiative. We are grateful to Laboratori Nazionali del Gran Sasso for hosting and supporting the XENON project. The work of M. H., P. K., J. M., and A. S. was supported by the U.S. DOE (Grant No. DE-FG02-00ER41132), the ERC (Grant No. 307986 STRONGINT), the Deutsche Forschungsgemeinschaft through SFB 1245 (Project No. 279384907), the Max-Planck Society, the Japanese Society for the Promotion of Science KAKENHI (Grant No. 18K03639), MEXT as “Priority Issue on Post-K computer” (Elucidation of the fundamental laws and evolution of the universe), JICFuS, and the CNS-RIKEN joint project for large-scale nuclear structure calculations. Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society.",
year = "2019",
month = feb,
day = "21",
doi = "10.1103/PhysRevLett.122.071301",
language = "English (US)",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "7",
}