EPJ Web of Conferences
Volume 85, 20154th International Workshop on Transverse Polarisation Phenomena in Hard Processes (TRANSVERSITY 2014)
|Number of page(s)||3|
|Published online||23 January 2015|
Quark Orbital Angular Momentum
Department of Physics, New Mexico State University, Las Cruces, NM 88003, U.S.A.
a e-mail: firstname.lastname@example.org
Published online: 23 January 2015
Definitions of orbital angular momentum based on Wigner distributions are used as a framework to discuss the connection between the Ji definition of the quark orbital angular momentum and that of Jaffe and Manohar. We find that the difference between these two definitions can be interpreted as the change in the quark orbital angular momentum as it leaves the target in a DIS experiment. The mechanism responsible for that change is similar to the mechanism that causes transverse single-spin asymmetries in semi-inclusive deep-inelastic scattering.
© Owned by the authors, published by EDP Sciences, 2015
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