【预告】季向东: Large momentum effective field theory for...
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此次报告由丹麦尼尔斯玻尔研究所、中科院高能所、浙江大学主办,于2020年12月16日23:00开始,授权蔻享学术进行网络直播。
主题:Large momentum effective field theory for non-perturbative parton structure
主讲人:季向东 教授
单位:马里兰大学
主办方:丹麦尼尔斯玻尔研究所、中科院高能所、浙江大学
报告摘要
Partons are effective degrees of freedom describing the structure of hadrons involved in high-energy collisions. Familiar theories of partons are QCD light-front quantization and soft-collinear effective theory, both of which are intrinsically Minkowskian and appear unsuitable for classical Monte Carlo simulations. A "new" form of the parton theory has been formulated in terms of the old-fashioned, Feynman's infinite momentum frame, in which the parton degrees of freedom are filtered through infinite-momentum external states. The partonic structure of hadrons is then related to the matrix elements of static (equal-time) correlators in the state |Pz=∞⟩. This representation lays the foundation of large-momentum effective theory (LaMET) which approximates parton physics through a systematic M/Pz expansion at a finite but large momentum Pz.
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