# Exclusion of leptophilic dark matter models using XENON100 electronic recoil data

XENON Collaboration; Aprile, E; Agostini, F; Alfonsi, M; Auger, M; Barrow, P; Baudis, L; Behrens, A; Kessler, G; Kish, A; Mayani, D; Naganoma, J; Pakarha, P; Piastra, F; Shagin, P; Wall, R; et al (2015). Exclusion of leptophilic dark matter models using XENON100 electronic recoil data. Science, 349(6250):851-854.

## Abstract

Laboratory experiments searching for galactic dark matter particles scattering off nuclei have so far not been able to establish a discovery. We use data from the XENON100 experiment to search for dark matter interacting with electrons. With no evidence for a signal above the low background of our experiment, we exclude a variety of representative dark matter models that would induce electronic recoils. For axial-vector couplings to electrons, we exclude cross-sections above $6x10^{-35} cm^2$ for particle masses of $m_chi = 2 GeV/c^2$. Independent of the dark matter halo, we exclude leptophilic models as explanation for the long-standing DAMA/LIBRA signal, such as couplings to electrons through axial-vector interactions at a 4.4 sigma confidence level, mirror dark matter at 3.6 $\sigma$, and luminous dark matter at 4.6 $\sigma$.

## Abstract

Laboratory experiments searching for galactic dark matter particles scattering off nuclei have so far not been able to establish a discovery. We use data from the XENON100 experiment to search for dark matter interacting with electrons. With no evidence for a signal above the low background of our experiment, we exclude a variety of representative dark matter models that would induce electronic recoils. For axial-vector couplings to electrons, we exclude cross-sections above $6x10^{-35} cm^2$ for particle masses of $m_chi = 2 GeV/c^2$. Independent of the dark matter halo, we exclude leptophilic models as explanation for the long-standing DAMA/LIBRA signal, such as couplings to electrons through axial-vector interactions at a 4.4 sigma confidence level, mirror dark matter at 3.6 $\sigma$, and luminous dark matter at 4.6 $\sigma$.

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