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<p>Based on a solution of DGLAP evolution equations at small values of Bjorken variable <i>x</i>, a simple analytic approximation for the perturbative part of so-called linearly polarized gluon density <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(h_{1}^{{ \bot g}}(x,b_{t}^{2},{{Q}^{2}})\)</EquationSource> <!--JETPLet2560977Kotikov-m1--> </InlineEquation> is obtained at the leading order of perturbation theory. We demonstrate that derived expressions reproduce the main features of complicated numerical calculations performed by the parametrization groups.</p>

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Linearly Polarized Gluon Density at Low x

  • 期刊论文

  • 发表日期：

    2026年2月9日

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  • N. A. Abdulov,
  • X. Chen,
  • A. V. Kotikov,
  • A. V. Lipatov

摘要

Based on a solution of DGLAP evolution equations at small values of Bjorken variable x, a simple analytic approximation for the perturbative part of so-called linearly polarized gluon density \(h_{1}^{{ \bot g}}(x,b_{t}^{2},{{Q}^{2}})\) is obtained at the leading order of perturbation theory. We demonstrate that derived expressions reproduce the main features of complicated numerical calculations performed by the parametrization groups.