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arXiv 2107.01231hep-phhep-latnucl-exnucl-th
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扩展全息光阵面QCD中质子和π介子的胶子物质分布

Gluon matter distribution in the proton and pion from extended holographic light-front QCD

Guy F. de Téramond, H. G. Dosch, Tianbo Liu, Raza Sabbir Sufian, Stanley J. Brodsky, Alexandre Deur

摘要:

全息光阵面QCD框架提供了强子质量谱、形状因子和夸克分布的统一的非微扰描述。在这篇文章中,我们扩展全息QCD,以描述胶子分布的质子和π介子从耦合的度规涨落引起的自旋2 Pomeron的能量动量张量在反-deSitter空间,加上约束的Veneziano模型{ \color{blue},}没有额外的自由参数。胶子和夸克的分布被证明有显着不同的有效QCD标度。

英文摘要:

The holographic light-front QCD framework provides a unified nonperturbative description of the hadron mass spectrum, form factors and quark distributions. In this article we extend holographic QCD in order to describe the gluonic distribution in both the proton and pion from the coupling of the metric fluctuations induced by the spin-two Pomeron with the energy momentum tensor in anti--de Sitter space, together with constraints imposed by the Veneziano model{\color{blue},} without additional free parameters. The gluonic and quark distributions are shown to have significantly different effective QCD scales.

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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