Meeting No. 6

Proton radius fit

Our present analysis results in a radius that is smaller than the Bernauer value. Harald suggested, that this might be related to the fitting procedure. It is known that looking only at the low Q**2 data leads to a smaller radius! Hence, I converted Bernauer CS data to GEp and use the data points to determine my own radius, using only Q**2<0.02GeV**2. The corresponding mathematica file is here:

FitFormFactorsBernauer.pdf

The analysis indeed leads to a smaller radius (approx. 0.85fm) which is consistent with our values! See the following plot:

Question: Why it is important to consider high Q**2 data, when fitting radius? The FFT formalism does not work for proton. Hence, high Q**2 data should not have any influence on the befaviour of the FF at low Q**2???

DPG meeting 2016

Here are my slides for the DPG meeting. Whay do you think? MihatalkDPG2016.pptx

Last modified: 11.03.2016