Position Space Interpretation for Generalized Parton Distributions
Position Space Interpretation for Generalized Parton Distributions
Position Space Interpretation for Generalized Parton Distributions
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Form Factors vs. GPDs<br />
operator<br />
<strong>for</strong>ward<br />
matrix elem.<br />
off-<strong>for</strong>ward<br />
matrix elem.<br />
position space<br />
¯qγ + q<br />
Q<br />
F(t)<br />
ρ(⃗r)<br />
∫ dx − e ixp+ x −<br />
4π<br />
(<br />
¯q<br />
−x −<br />
2<br />
)<br />
(<br />
γ + x<br />
q<br />
− 2<br />
)<br />
q(x)<br />
H(x, 0, t)<br />
q(x,b ⊥ )<br />
q(x,b ⊥ ) = impact parameter dependent PDF<br />
<strong>Position</strong> <strong>Space</strong> <strong>Interpretation</strong> <strong>for</strong> <strong>Generalized</strong> <strong>Parton</strong> <strong>Distributions</strong> – p.9/55