Improved Constraints on Pion Fragmentation Functions from Simulated Electron-Ion Collider Data
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866918156071600128 |
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| author | Soleymaninia, Maryam Khanpour, Hamzeh Azizi, Majid Hashamipour, Hadi |
| author_facet | Soleymaninia, Maryam Khanpour, Hamzeh Azizi, Majid Hashamipour, Hadi |
| contents | We present a quantitative assessment of the anticipated impact of future Electron-Ion Collider (EIC) measurements on the extraction of parton-to-pion fragmentation functions (FFs). Our analysis combines simulated semi-inclusive deep-inelastic scattering (SIDIS) pseudo-data at EIC energies of 45 GeV and 140 GeV with existing single-inclusive electron-positron annihilation (SIA) and SIDIS experimental data. The pion fragmentation functions are determined at next-to-leading-order (NLO) accuracy using a perturbative QCD framework and a neural network parametrization. Uncertainties are rigorously estimated through Monte Carlo sampling, accounting for both experimental errors and variations in input parton distribution functions. Our results demonstrate that incorporating EIC pseudo-data reduces their uncertainties, especially at medium to large momentum fractions ($z$). This improvement is particularly pronounced for the gluon and selected quark FFs, highlighting the substantial role that EIC measurements will play in achieving high-precision extractions of FFs and informing future experimental and theoretical developments in collider physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_16053 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Improved Constraints on Pion Fragmentation Functions from Simulated Electron-Ion Collider Data Soleymaninia, Maryam Khanpour, Hamzeh Azizi, Majid Hashamipour, Hadi High Energy Physics - Phenomenology We present a quantitative assessment of the anticipated impact of future Electron-Ion Collider (EIC) measurements on the extraction of parton-to-pion fragmentation functions (FFs). Our analysis combines simulated semi-inclusive deep-inelastic scattering (SIDIS) pseudo-data at EIC energies of 45 GeV and 140 GeV with existing single-inclusive electron-positron annihilation (SIA) and SIDIS experimental data. The pion fragmentation functions are determined at next-to-leading-order (NLO) accuracy using a perturbative QCD framework and a neural network parametrization. Uncertainties are rigorously estimated through Monte Carlo sampling, accounting for both experimental errors and variations in input parton distribution functions. Our results demonstrate that incorporating EIC pseudo-data reduces their uncertainties, especially at medium to large momentum fractions ($z$). This improvement is particularly pronounced for the gluon and selected quark FFs, highlighting the substantial role that EIC measurements will play in achieving high-precision extractions of FFs and informing future experimental and theoretical developments in collider physics. |
| title | Improved Constraints on Pion Fragmentation Functions from Simulated Electron-Ion Collider Data |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2503.16053 |