Annual modulations from secular variations: relaxing DAMA?

  title={Annual modulations from secular variations: relaxing DAMA?},
  author={Dario Buttazzo and Paolo Panci and Nicola Rossi and Alessandro Strumia},
  journal={Journal of High Energy Physics},
The DAMA collaboration reported an annually modulated rate with a phase compatible with a Dark Matter induced signal. We point out that a slowly varying rate can bias or even simulate an annual modulation if data are analyzed in terms of residuals computed by subtracting approximately yearly averages starting from a fixed date, rather than a background continuous in time. In the most extreme case, the amplitude and phase of the annual modulation reported by DAMA could be alternatively… Expand
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