Improved limit on directly measured antiproton lifetime

In the entire 2016 antiproton run BASE was operated with particles trapped in 2015. The particles were suspended from the unique reservoir trap to the measurement traps on request, apart from dispensing single antiprotons to the other traps, not a single antiproton was lost in an integrated observation time of in total 405 days. Continuous logging of the reservoir content finally enabled us to set new constraints on directly measured antiproton lifetime, improving the previous best limits by a factor of 7. Today the result has been published in the New Journal of Physics.

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