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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Impact parameter dependent PDFs<br />
q(x,b ⊥ ) =<br />
∫ d 2 ∆ ⊥<br />
(2π) 2 H(x, 0, −∆2 ⊥)e ib ⊥·∆ ⊥<br />
(∆ ⊥ = p ⊥ − p ′ ⊥ , ξ = 0)<br />
q(x,b ⊥ ) has physical interpretation of a density<br />
q(x,b ⊥ ) ≥ 0 <strong>for</strong> x > 0<br />
q(x,b ⊥ ) ≤ 0 <strong>for</strong> x < 0<br />
<strong>Position</strong> <strong>Space</strong> <strong>Interpretation</strong> <strong>for</strong> <strong>Generalized</strong> <strong>Parton</strong> <strong>Distributions</strong> – p.14/55