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| Quantum phase-space tomography of the proton |
| 2003-08-18
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Speaker : Prof. Xiangdong Ji （季向东） Univ. Maryland
Date : 2003-08-18 16:00
Venue :
Conference Hall 322, ITP/理论物理所322报告厅
Abstract : Abstract: While form factors and parton distributions provide separately the shape of the proton in the coordinate and momentum spaces, a more powerful imaging of the proton can be obtained through the quantum phase-space Wigner distribution of the quarks and gluons. The new distribution depicts a full-3D proton at every fixed light-cone momentum, like#@what is seen through momentum (or "color") filters. In this talk, I will#@discuss how the quark Wigner distribution can be measured in the #@next generation of high-energy experiments and how to reconstruct the#@spin of the proton from such an experimental observable.
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