The transverse momentum dependent distribution functions in the bag model

Understand

Leading and subleading twist transverse momentum dependent parton distribution functions (TMDs) are studied in a quark model framework provided by the bag model.

• A complete set of relations among different TMDs is derived, and the question is discussed how model-(in)dependent such relations are.
• A connection of the pretzelosity distribution and quark orbital angular momentum is derived.
• Numerical results are presented, and applications for phenomenology discussed.