Studying hadronic structure of the photon in lattice QCD.
نویسندگان
چکیده
We show that the matrix element of a local quark-gluon operator in the photon state, , can be calculated in lattice QCD. The result is generalized to other quantities involving spacelike photons, including the transition form factor gammagamma*-->pi(0) and the virtual-photon-nucleon Compton amplitude which can be used to define the generalized Drell-Hearn-Gerasimov and Bjorken sum rules.
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عنوان ژورنال:
- Physical review letters
دوره 86 2 شماره
صفحات -
تاریخ انتشار 2001