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arXiv 0901.1792hep-ph
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在光子靶上探测DVCS中的光子结构

Probing photon structure in DVCS on a photon target

M. El Beiyad, S. Friot, B. Pire, L. Szymanowski, S. Wallon

摘要:

在两个不同的运动学域中证明了在高Q2下深虚康普顿散射(DVCS)过程γ *(Q)γ-> γ γ的振幅的因式分解,允许定义光子广义部分子分布和双光子广义分布振幅。这两个量都表现出反常的标度行为,并服从新的非均匀QCD演化方程。

英文摘要:

The factorization of the amplitude for the deeply virtual Compton scattering (DVCS) process gamma*(Q) gamma -> gamma gamma at high Q2 is demonstrated in two distinct kinematical domains, allowing to define the photon generalized parton distributions and the diphoton generalized distribution amplitudes. Both these quantities exhibit an anomalous scaling behaviour and obey new inhomogeneous QCD evolution equations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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