Evolution of colour correlated double parton distributions: a quantitative study

被引：1

作者：

Diehl, Markus ^{[1
]}

Fabry, Florian ^{[1
]}

Ploessl, Peter ^{[1
]}

机构：

[1] Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 2024卷 / 02期

关键词：

Higher-Order Perturbative Calculations; Specific QCD Phenomenology; Parton Distributions; TO-BACK JETS; SCATTERING; PROBE; SPIN; LHC;

D O I：

10.1007/JHEP02(2024)229

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Double parton distributions satisfy the same evolution equations as ordinary single-parton densities, provided that the colours of the two partons are uncorrelated. The situation is different for colour correlated parton pairs, where evolution to higher scales results in a suppression by Sudakov double logarithms. We perform a detailed study of evolution for colour correlated double parton distributions, both analytically and numerically, at lowest order and beyond. When the two observed partons originate from the perturbative splitting of a single one, the Sudakov suppression of colour correlations at the cross section level is not as strong as one might expect.

引用

页数：66

共 44 条

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