Some Inequalities for the Generalized Parton Distribution E(x,0,t)

Abstract

We discuss some constraints on the $x$ and $t$-dependence of $E(x,0,t)$ that arise from positivity bounds in the impact parameter representation. In addition, we show that $E(x,0,0)$ for the nucleon vanishes for $x\to 1$ at least as rapidly as $(1-x{)}^4$. Finally we provide an inequality that limits the contribution from $E$ to the angular momentum sum rule.

3 pages

References in corpus (3)

• Generalized Parton Distributions
• Moments of Nucleon Generalized Parton Distributions in Lattice QCD
• Precision Measurement of the Neutron Spin Asymmetry $A_1^n$ and Spin-Flavor Decomposition in the Valence Quark Region

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