Impact of lattice gluon dataset on CTEQ-TEA global PDFs
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arXiv
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| Format: | Preprint |
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2025
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| author | Ablat, Alim Dulat, Sayipjamal Hou, Tie-Jiun Lin, Huey-Wen Xie, Keping Yuan, C. -P. |
| author_facet | Ablat, Alim Dulat, Sayipjamal Hou, Tie-Jiun Lin, Huey-Wen Xie, Keping Yuan, C. -P. |
| contents | We investigate the impact of the latest gluon parton results from lattice QCD on the global parton distribution function (PDF) analysis within the CTEQ-TEA framework. The dependence on PDF parameterization is explored using the CT18As variant, incorporating the ATLAS 7 TeV precision $W,Z$ dataset and introducing more flexible parameters to allow strangeness asymmetry at the starting scale $Q_0$. The interplay between lattice input and collider inclusive jet datasets is examined by including the post-CT18 inclusive jet datasets from recent LHC measurements and/or removing all collider inclusive jet datasets. Finally, we demonstrate several phenomenological implications at the LHC, focusing on gluon-gluon parton luminosity and related processes, such as the production of a Higgs-like scalar, top-quark pairs, and their associated production with an additional jet, Higgs, or $Z$ boson. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_10630 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Impact of lattice gluon dataset on CTEQ-TEA global PDFs Ablat, Alim Dulat, Sayipjamal Hou, Tie-Jiun Lin, Huey-Wen Xie, Keping Yuan, C. -P. High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice We investigate the impact of the latest gluon parton results from lattice QCD on the global parton distribution function (PDF) analysis within the CTEQ-TEA framework. The dependence on PDF parameterization is explored using the CT18As variant, incorporating the ATLAS 7 TeV precision $W,Z$ dataset and introducing more flexible parameters to allow strangeness asymmetry at the starting scale $Q_0$. The interplay between lattice input and collider inclusive jet datasets is examined by including the post-CT18 inclusive jet datasets from recent LHC measurements and/or removing all collider inclusive jet datasets. Finally, we demonstrate several phenomenological implications at the LHC, focusing on gluon-gluon parton luminosity and related processes, such as the production of a Higgs-like scalar, top-quark pairs, and their associated production with an additional jet, Higgs, or $Z$ boson. |
| title | Impact of lattice gluon dataset on CTEQ-TEA global PDFs |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2502.10630 |