Unveiling the Collins-Soper kernel in inclusive DIS at threshold
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866913701302370304 |
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| author | Simonelli, Andrea Accardi, Alberto Cerutti, Matteo Costa, Caroline S. R. Signori, Andrea |
| author_facet | Simonelli, Andrea Accardi, Alberto Cerutti, Matteo Costa, Caroline S. R. Signori, Andrea |
| contents | We revisit the factorization of inclusive deep inelastic scattering near the kinematic threshold to explicitly track off-lightcone effects. Particle production develops around two opposite near-lightcone directions like in transverse-momentum-dependent processes, and the Collins-Soper kernel emerges as a universal function in the rapidity evolution of the relevant parton correlators. We clarify outstanding issues regarding soft radiation and rapidity divergences, and uncover a new way to calculate the Collins-Soper kernel on the lattice with collinear operators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_15033 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Unveiling the Collins-Soper kernel in inclusive DIS at threshold Simonelli, Andrea Accardi, Alberto Cerutti, Matteo Costa, Caroline S. R. Signori, Andrea High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Theory We revisit the factorization of inclusive deep inelastic scattering near the kinematic threshold to explicitly track off-lightcone effects. Particle production develops around two opposite near-lightcone directions like in transverse-momentum-dependent processes, and the Collins-Soper kernel emerges as a universal function in the rapidity evolution of the relevant parton correlators. We clarify outstanding issues regarding soft radiation and rapidity divergences, and uncover a new way to calculate the Collins-Soper kernel on the lattice with collinear operators. |
| title | Unveiling the Collins-Soper kernel in inclusive DIS at threshold |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Theory |
| url | https://arxiv.org/abs/2502.15033 |