Impact of relativistic corrections to high-pT prompt-psi(2S) production at hadron colliders
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| Format: | Preprint |
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2025
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| _version_ | 1866908580729323520 |
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| author | Bertone, Valerio Lansberg, Jean-Philippe Lynch, Kate |
| author_facet | Bertone, Valerio Lansberg, Jean-Philippe Lynch, Kate |
| contents | We study relativistic corrections to prompt psi(2S) at high pT in hadron colliders. Our calculation employs leading-power factorization with Fragmentation Functions (FFs) computed in nonrelativistic QCD and evolved to next-to-leading-logarithmic accuracy. Relativistic corrections increase the cross section significantly for the gluon channel, but moderately for charm. We perform a full analysis of uncertainties. We observe a good agreement with both ATLAS and CMS cross sections without the need of higher-order color-octet contributions. The polar anisotropy is found to be close to CMS data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_06456 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Impact of relativistic corrections to high-pT prompt-psi(2S) production at hadron colliders Bertone, Valerio Lansberg, Jean-Philippe Lynch, Kate High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory Nuclear Theory We study relativistic corrections to prompt psi(2S) at high pT in hadron colliders. Our calculation employs leading-power factorization with Fragmentation Functions (FFs) computed in nonrelativistic QCD and evolved to next-to-leading-logarithmic accuracy. Relativistic corrections increase the cross section significantly for the gluon channel, but moderately for charm. We perform a full analysis of uncertainties. We observe a good agreement with both ATLAS and CMS cross sections without the need of higher-order color-octet contributions. The polar anisotropy is found to be close to CMS data. |
| title | Impact of relativistic corrections to high-pT prompt-psi(2S) production at hadron colliders |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2510.06456 |