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The pretzelosity TMD and quark orbital angular momentum

Abstract : We study the connection between the quarkorbitalangularmomentum and the pretzelosity transverse-momentum dependent parton distribution function. We discuss the origin of this relation in quark models, identifying as key ingredient for its validity the assumption of spherical symmetry for the nucleon in its rest frame. Finally we show that the individual quark contributions to the orbitalangularmomentum obtained from this relation cannot be interpreted as the intrinsic contributions, but include the contribution from the transverse centre of momentum which cancels out only in the total orbitalangularmomentum.
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http://hal.in2p3.fr/in2p3-00700342
Contributor : Sophie Heurteau <>
Submitted on : Tuesday, May 22, 2012 - 4:49:18 PM
Last modification on : Wednesday, September 16, 2020 - 3:59:07 PM

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C. Lorcé, B. Pasquini. The pretzelosity TMD and quark orbital angular momentum. Physics Letters B, Elsevier, 2012, 710, pp.486-488. ⟨10.1016/j.physletb.2012.03.025⟩. ⟨in2p3-00700342⟩

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