Transverse Force on Quarks in DIS

30 Apr 2015, 10:45


WG6 Spin Physics WG6 Spin Physics


Matthias Burkardt (NMSU)


Transverse single-spin asymmetries are not the only observable where the transverce force on quarks in DIS plays a role. For example, higher-twist effects in polarized inclusive DIS can be related to that force. Furthermore the torque due to that force is relevant when comparing the Jaffe-Manohar with the Ji definition for quark orbital angular momentum. I explain the origin of that force in semi-classical pictures and discuss connections and differences with the Aharonov-Bohm effect.

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