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arXiv · 1011.1041

Quark Orbital Angular Momentum in the MIT Bag Model

Matthias Burkardt·Abdullah Jarrah
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Abstract

Using the MIT bag model, we study the contribution from the gluon vector potential due to the spectators to the orbital angular momentum of a quark in the bag model. For $\alpha_s = {\cal O}(1)$, this spectator contribution to the quark orbital angular momentum in the gauge-covariant Ji decomposition is of the same order as the non gauge-covariant quark orbital angular momentum and its magnitude is larger for $d$ than for $u$ quarks and negative for both.

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Matthias Burkardt, Abdullah Jarrah. 2010-11-04. Quark Orbital Angular Momentum in the MIT Bag Model. https://arxiv.org/abs/1011.1041

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