slides PDF - Theory Group
slides PDF - Theory Group
slides PDF - Theory Group
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Q 2 =0.127 GeV 2<br />
Quadrupole form factors and deformation<br />
C. N. Pananicolas, Eur. Phys. J. A18 (2003)<br />
C. Alexandrou, University of Cyprus PSI, December 18th 2007<br />
Quantities measured in the lab frame of<br />
the Δ are the ratios:<br />
R EM (EMR) = ! G E2 (Q2 )<br />
G M1 (Q 2 )<br />
R SM (CMR) = ! | ! q |<br />
2m "<br />
G C2 (Q 2 )<br />
G M1 (Q 2 )<br />
Precise experimental data strongly suggest<br />
deformation of Nucleon/Δ<br />
First conformation of non-zero EMR and<br />
CMR in full QCD<br />
Large pion effects
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