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arXiv 1303.0978hep-phhep-ex
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包含DIS中横向单靶自旋不对称性的模型预测

Model Prediction for the Transverse Single Target-Spin Asymmetry in inclusive DIS

Marc Schlegel

摘要:

讨论了非极化轻子与横极化核子深度非弹性散射的单自旋不对称性。这个可观测的是由轻子和核子之间的双光子交换产生的。在非对称性的部分子描述中,非微扰部分用多部分子关联:夸克-胶子关联函数和夸克-光子关联函数给出。最近提出了一个夸克-胶子关联函数模型,其中夸克-胶子关联函数用非价光锥波函数表示。利用这个模型,估计单自旋不对称的质子和中子。

英文摘要:

The single-spin asymmetry of unpolarized leptons scattering deep-inelastically off transversely polarized nucleons is discussed. This observable is generated by a two-photon exchange between lepton and nucleon. In a partonic description of the asymmetry the non-perturbative part is given in terms of multiparton correlations: quark-gluon correlation functions and quark-photon correlation functions. Recently, a model for quark-gluon correlation functions was presented where these objects were expressed through non-valence light cone wave functions. Using this model, estimates for the single-spin asymmetries for a proton and a neutron are presented.

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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