Small-\({p}_{{T}}\) Production of \(\eta_{{c}}\) Mesons within the Soft Gluon Resummation Approach

IF 0.4 4区物理与天体物理 Q4 PHYSICS, NUCLEAR

Physics of Atomic Nuclei Pub Date : 2025-07-11 DOI:10.1134/S1063778825700309

V. A. Saleev, K. K. Shilyaev

引用次数: 0

Abstract

In this article we describe the \(\eta_{c}\) production in proton–proton collisions at small values of the transverse momentum of the charmonium. Soft gluon resummation is used as a TMD factorization approach. At small transverse momenta, the color singlet contribution dominates, allowing us to use \(\eta_{c}\) as a test of the resummation scheme for the noncollinear gluon PDF. The cross sections of \(\eta_{c}\) production at \(\sqrt{s}=27\) GeV, \(115\) GeV and \(13\) TeV are predicted.

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软胶子恢复法中\(\eta_{{c}}\)介子的小\({p}_{{T}}\)产生

在这篇文章中，我们描述了在小的横向动量值下质子-质子碰撞\(\eta_{c}\)的产生。软胶子恢复被用作TMD分解方法。在小的横向动量下，颜色单重态的贡献占主导地位，允许我们使用\(\eta_{c}\)作为非共线胶子PDF的恢复方案的测试。预测了\(\sqrt{s}=27\) GeV、\(115\) GeV和\(13\) TeV处\(\eta_{c}\)产量剖面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Atomic Nuclei 物理-物理：核物理

CiteScore

0.60

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Physics of Atomic Nuclei is a journal that covers experimental and theoretical studies of nuclear physics: nuclear structure, spectra, and properties; radiation, fission, and nuclear reactions induced by photons, leptons, hadrons, and nuclei; fundamental interactions and symmetries; hadrons (with light, strange, charm, and bottom quarks); particle collisions at high and superhigh energies; gauge and unified quantum field theories, quark models, supersymmetry and supergravity, astrophysics and cosmology.