[Jlab-seminars] Theory Center Seminar

[Mary Fox]

Theory Center Seminar
Monday, October 19, 2009
1:00 p.m.
CEBAF Center, Room L104

*Nucleon Spin Structure and Gauge Invariance (An Atomic View)*

Terry Goldman (LANL)

The theory and measurements of the quark and gluon contributions
to the spin of the nucleon have caused controversy and consternation.
I review some of the issues in the familiar context of atomic physics
and present the Nanjing collaboration view of how to resolve these
questions. The principle feature of our resolution is a separation of 
the contribution of gauge fields to the relevant operators into two 
distinct, identifiable components. Possible further implications for 
linear momentum and asymptotic gauge fields will be touched upon.

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