论文标题
关于尖端的广角照片和旋转的电源，以达到扭曲3精度
On wide-angle photo- and electroproduction of pions to twist-3 accuracy
论文作者
论文摘要
The wide-angle photo- and electroproduction of pions is investigated within the handbag mechanism in which the $γ^{(*)} N\to πN'$ amplitudes factorize into subprocess amplitudes,$γ^{(*)} q\to πq'$, and form factors representing $1/x$-moments of generalized parton distributions (GPDs).考虑到乳头的2体和3体Fock成分，将子过程计算为扭曲3精度。将横截面与实验进行了比较，并讨论了自旋效应。
The wide-angle photo- and electroproduction of pions is investigated within the handbag mechanism in which the $γ^{(*)} N\to πN'$ amplitudes factorize into subprocess amplitudes,$γ^{(*)} q\to πq'$, and form factors representing $1/x$-moments of generalized parton distributions (GPDs). The subprocess is calculated to twist-3 accuracy taking into account both the 2- and 3-body Fock components of the pion. The cross-sections are compared to experiment and spin-effects are discussed.
