How small is the proton?
International team of researchers observes unexpectedly small proton radius in a precision laser experiment with exotic hydrogen atoms
12-Jul-2010 -
The proton - one of the universal building-blocks of all matter - is even smaller than had previously been assumed. This is the result obtained at the Paul-Scherrer-Institut (PSI) in Villigen (Switzerland) by an international research team, including scientists from the Max Planck Institute of ...
detectors
Germany
helium
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