Effective field theory search for high-energy nuclear recoils using the XENON100 dark matter detector

E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, F. D. Amaro, M. T. Anthony, F. Arneodo, Peter Barrow, L. Baudis, B. Bauermeister

Abstract

We report on weakly interacting massive particles (WIMPs) search results in the XENON100 detector using a nonrelativistic effective field theory approach. The data from science run II ($34\text{ }\text{ }\mathrm{kg}\ifmmode\times\else\texttimes\fi{}224.6$ live days) were reanalyzed, with an increased recoil energy interval compared to previous analyses, ranging from $(6.6--240)\text{ }\text{ }{\mathrm{keV}}_{\mathrm{nr}}$. The data are found to be compatible with the background-only hypothesis. We present 90% confidence level exclusion limits on the coupling constants of WIMP-nucleon effective operators using a binned profile likelihood method. We also consider the case of inelastic WIMP scattering, where incident WIMPs may up-scatter to a higher mass state, and set exclusion limits on this model as well.

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• Physical review. D/Physical review. D. - View - PDF
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