Quark Orbital Angular Momentum in the MIT Bag Model

Understand

We present the results for the Generalized Transverse Momentum Distribution related to quark Orbital Angular Momentum, {\it i.e.} $F_{14}$, in the MIT bag model.

• This model has been modified to include the Peierls--Yoccoz projection to restore translational invariance.
• Such a modification allows to fulfill more satisfactorily basic sum rules, that would otherwise be less elegantly carried out with the original version.
• Using the same model, we have calculated the twist-$3$ GPD that corresponds to Orbital Angular Momentum \`a la Ji, through the Penttinen--Polyakov--Shuvaev--Strikman sum rule.