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Subject: Fundamental Open Questions in Spin Physics
Speaker:Jacques Soffer
Temple University
Date:Friday, Nov. 20, 2009
Time:11 a.m.
Place:F113
Abstract:There is a long list of open questions and to answer, but a simple one is "What is particle spin good for?". I will start by giving a few examples of unexpected intringing observations. Many questions refer to the nucleon spin puzzle, for example, its quark flavor decomposition or the gluon contribution and the orbital angular momentum contribution to the nucleon spin. One must also ask how important is the quark transversity? I will discuss the effects of non-zero intrinsic transverse momentum, which remain to be clarified in connection with the interpretation of large single transverse spin asymmetries.

Upcoming Seminars:

Nov. 25 - Yi Qiang (Duke)
Dec. 4  - Seamus Riordan (UVa)
Dec. 15 - Heidi Schellman (Northwestern)

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