arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1402.3101hep-ph
收藏

高能反应中非微扰夸克-胶子色磁相互作用和自旋效应

Anomalous nonperturbative quark-gluon chromomagnetic interaction and spin effects in high energy reactions

N. S. Korchagin, N. I. Kochelev

摘要:

本文讨论了高能强子反应中自旋效应的一种新的非微扰机制。这种机制是基于QCD真空的非平凡拓扑结构所导致的大的夸克色磁矩反常的存在。作为一个例子,我们估计的贡献,这种相互作用的单自旋不对称性(SSA)的包容性π介子的生产中的质子-质子散射。我们表明,由AQCM诱导的SSA是大的,它的值是在定性与实验数据一致。

英文摘要:

We disscuss a new nonperturbative mechanism for spin effects in high energy reactions with hadrons. This mechanism is based on the existence of a large anomalous quark chromomagnetic moment (AQCM) induced by the nontrivial topological structure of QCD vacuum. As an example, we estimate the contribution of this interaction to the single spin asymmetry (SSA) in the inclusive pion production in the proton-proton scattering. We show that SSA induced by AQCM is large and its value is in qualitative agreement with experimental data.

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。

↑