Assessing the sensitivity of Energy-Energy Correlations in $e^+e^-$ annihilation to TMD dynamics
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866908462307344384 |
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| author | Cuerpo, Alejandro Bris Scimemi, Ignazio Vladimirov, Alexey |
| author_facet | Cuerpo, Alejandro Bris Scimemi, Ignazio Vladimirov, Alexey |
| contents | We critically examine the back-to-back limit of the energy-energy correlation (EEC) in $e^+e^-$ annihilation as a potential source of information on the Collins-Soper kernel and the strong coupling constant. The analysis is performed within the framework of transverse momentum dependent (TMD) factorization at next-to-next-to-next-to-next-to-leading logarithmic (N$^4$LL) accuracy, using a global fit to all available experimental data. Contrary to previous claims, we demonstrate that the current data do not provide meaningful constraints on either the Collins-Soper kernel or $α_s$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_17478 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Assessing the sensitivity of Energy-Energy Correlations in $e^+e^-$ annihilation to TMD dynamics Cuerpo, Alejandro Bris Scimemi, Ignazio Vladimirov, Alexey High Energy Physics - Phenomenology We critically examine the back-to-back limit of the energy-energy correlation (EEC) in $e^+e^-$ annihilation as a potential source of information on the Collins-Soper kernel and the strong coupling constant. The analysis is performed within the framework of transverse momentum dependent (TMD) factorization at next-to-next-to-next-to-next-to-leading logarithmic (N$^4$LL) accuracy, using a global fit to all available experimental data. Contrary to previous claims, we demonstrate that the current data do not provide meaningful constraints on either the Collins-Soper kernel or $α_s$. |
| title | Assessing the sensitivity of Energy-Energy Correlations in $e^+e^-$ annihilation to TMD dynamics |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2507.17478 |