Associated $ZH$ production in gluon fusion process at NLO+NLL
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866918519355998208 |
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| author | Banerjee, Pulak Dey, Chinmoy Koirala, Niraj Kumar, M. C. Pandey, Vaibhav |
| author_facet | Banerjee, Pulak Dey, Chinmoy Koirala, Niraj Kumar, M. C. Pandey, Vaibhav |
| contents | We present precise results for invariant mass distributions and inclusive cross-sections, of associated $ZH$ production through gluon fusion in QCD. We include threshold logarithms at next-to-leading-logarithmic (NLL) accuracy and match the results to full next-to-leading-order (NLO) results with exact top-quark mass dependence in the virtual amplitudes. At 13.6 TeV energy at LHC, the NLO+NLL cross-section increases the NLO counterpart by about $20\%$. For differential distributions, at 3000 GeV, the uncertainties arising out of the unphysical renormalization and factorization scales is about $20\%$ for NLO; whereas for the resummed results it is around $12\%$. We also combine these results to the Drell-Yan type results at N$^3$LL and present the most precise results in hadron collisions. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_24131 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Associated $ZH$ production in gluon fusion process at NLO+NLL Banerjee, Pulak Dey, Chinmoy Koirala, Niraj Kumar, M. C. Pandey, Vaibhav High Energy Physics - Phenomenology High Energy Physics - Experiment We present precise results for invariant mass distributions and inclusive cross-sections, of associated $ZH$ production through gluon fusion in QCD. We include threshold logarithms at next-to-leading-logarithmic (NLL) accuracy and match the results to full next-to-leading-order (NLO) results with exact top-quark mass dependence in the virtual amplitudes. At 13.6 TeV energy at LHC, the NLO+NLL cross-section increases the NLO counterpart by about $20\%$. For differential distributions, at 3000 GeV, the uncertainties arising out of the unphysical renormalization and factorization scales is about $20\%$ for NLO; whereas for the resummed results it is around $12\%$. We also combine these results to the Drell-Yan type results at N$^3$LL and present the most precise results in hadron collisions. |
| title | Associated $ZH$ production in gluon fusion process at NLO+NLL |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2605.24131 |