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SUMMARY:QED is not imperiled by the proton's running radii - Prof. Alvaro 
 De Rujula (CERN)
DTSTART:20101111T160000Z
DTEND:20101111T170000Z
UID:TALK26351@talks.cam.ac.uk
CONTACT:Steve Chun Hay Kom
DESCRIPTION:The moments of the proton's charge distribution\, such as its 
 mean-square radius\, can be measured in various ways. Recent results based
  on the Lamb Shift in muonic hydrogen are 5 standard deviations away from 
 those on ordinary hydrogen and e-p scattering\, compiled by CODATA (the ge
 neral-physics equivalent of the Particle-Data Group). This has been interp
 reted in diverse manners\, including the demise of QED\, the greatest blow
  ever to the Standard Model. I shall remind the audience of some of the at
 omic physics one may have forgotten and describe the muonic-hydrogen exper
 iment\, as well as the analysis of the rest of the data.  For most --perha
 ps all-- of the talk\, the audience will be saying "I can't believe it".
LOCATION:Seminar Room B\, Rutherford Building\, Cavendish Laboratory
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