(IMAGE)

Physikalisch-Technische Bundesanstalt (PTB)

Caption

PTB’s ion traps (top right) and the PENTATRAP Penning trap mass spectrometer at MPIK in Heidelberg (bottom left) were used to obtain a new insight into the differences between isotopes and new limits for a “dark force”.

Credit

Credit: MPIK / PTB / Brookhaven National Laboratory

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License

CC BY

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