# Observation and applications of single-electron charge signals in the XENON100 experiment

@article{Aprile2014ObservationAA, title={Observation and applications of single-electron charge signals in the XENON100 experiment}, author={E. Aprile and M. Alfonsi and K. Arisaka and F. Arneodo and C. Bălan and L. Baudis and B. Bauermeister and A. Behrens and P. Beltrame and K. Bokeloh and A. Brown and E. Brown and S. Br{\"u}nner and G. Bruno and R. Budnik and J. Cardoso and W. Chen and B. Choi and A. P. Colijn and H. Contreras and J. Cussonneau and M. Decowski and E. Duchovni and S. Fattori and A. Ferella and W. Fulgione and F. Gao and M. Garbini and C. Ghag and K. Giboni and L. Goetzke and C. Grignon and E. Gross and W. Hampel and R. Itay and F. Kaether and G. Kessler and A. Kish and J. Lamblin and H. Landsman and R. F. Lang and M. Calloch and C. Levy and K. E. Lim and Q. Lin and S. Lindemann and M. Lindner and J. Lopes and K. Lung and T. M. Undagoitia and F. V. Massoli and A. Fernandez and Y. Meng and M. Messina and A. Molinario and J. Naganoma and K. Ni and U. Oberlack and S. Orrigo and E. Pantic and R. Persiani and F. Piastra and G. Plante and N. Priel and A. Rizzo and S. Rosendahl and J. Santos and G. Sartorelli and J. Schreiner and M. Schumann and L. Lavina and M. Selvi and P. Shagin and H. Simgen and A. Teymourian and D. Thers and O. Vitells and H. Wang and M. Weber and C. Weinheimer}, journal={Journal of Physics G}, year={2014}, volume={41}, pages={035201} }

The XENON100 dark matter experiment uses liquid xenon in a time projection chamber (TPC) to measure xenon nuclear recoils resulting from the scattering of dark matter weakly interacting massive particles (WIMPs). In this paper, we report the observation of single-electron charge signals which are not related to WIMP interactions. These signals, which show the excellent sensitivity of the detector to small charge signals, are explained as being due to the photoionization of impurities in the… CONTINUE READING

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