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arXiv 1707.01460hep-ph
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高精度HERA数据离散BFKL分析中主导贡献的解耦

Decoupling of the leading contribution in the discrete BFKL Analysis of High-Precision HERA Data

H. Kowalski, L. N. Lipatov, D. A. Ross, O. Schulz

摘要:

我们分析,在非线性光学,BFKL方程的离散本征值解的物理性质。我们发现,一组具有正本征值ω的本征函数,加上一个具有负ω的本征函数连续体的一小部分,可以很好地描述x<0.001,Q^2 > 6 GeV^2区域内的高精度HERA F_2数据。本征函数的相位可以从坡密子谱的简单参数化中获得,这在BFKL中具有自然的动机。数据分析表明,第一本征函数完全或几乎完全与质子无关。这表明存在一个额外的基态,它是自然饱和的,可能具有软坡密子的性质。

英文摘要:

We analyse, in NLO, the physical properties of the discrete eigenvalue solution for the BFKL equation. We show that a set of eigenfunctions with positive eigenvalues, ω, together with a small contribution from a continuum of eigenfunctions with negative ω, provide an excellent description of high-precision HERA F_2 data in the region, x<0.001, Q^2 > 6 GeV^2. The phases of the eigenfunctions can be obtained from a simple parametrisation of the pomeron spectrum, which has a natural motivation within BFKL. The data analysis shows that the first eigenfunction decouples completely or almost completely from the proton. This suggests that there exist an additional ground state, which is naturally saturated and may have the properties of the soft pomeron.

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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