Fresh look at the nuclear transparency using the generalized parton distributions
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866912671468617728 |
|---|---|
| author | The MMGPDs Collaboration Goharipour, Muhammad Irani, Fatemeh Azizi, K. Dutta, Dipangkar |
| author_facet | The MMGPDs Collaboration Goharipour, Muhammad Irani, Fatemeh Azizi, K. Dutta, Dipangkar |
| contents | Color transparency (CT) is a fundamental phenomenon in QCD in which hadrons produced in high-energy exclusive processes traverse nuclear matter with minimal interactions. Nuclear transparency, which quantifies this attenuation suppression, is a quantity with high sensitivity to CT effects and provides critical insights into QCD dynamics in nuclear environments. In this study, we revisit nuclear transparency using the framework of generalized parton distributions (GPDs). By constructing nuclear GPDs (nGPDs) through the incorporation of nuclear parton distribution functions, we calculate the nuclear transparency $ T(Q^2) $ for the carbon nucleus as a function of momentum transfer $ Q^2 $ considering various definitions and compare the results obtained with available experimental data. Our finding highlights the importance of choosing a physically motivated definition of nuclear transparency. Moreover, we emphasize that a more reliable determination of nGPDs requires a dedicated global analysis incorporating nuclear data. Such an approach is essential for improving the theoretical understanding of CT and for achieving consistency with experimental observations in the high-$ Q^2 $ regime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_06333 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fresh look at the nuclear transparency using the generalized parton distributions The MMGPDs Collaboration Goharipour, Muhammad Irani, Fatemeh Azizi, K. Dutta, Dipangkar High Energy Physics - Phenomenology High Energy Physics - Experiment Color transparency (CT) is a fundamental phenomenon in QCD in which hadrons produced in high-energy exclusive processes traverse nuclear matter with minimal interactions. Nuclear transparency, which quantifies this attenuation suppression, is a quantity with high sensitivity to CT effects and provides critical insights into QCD dynamics in nuclear environments. In this study, we revisit nuclear transparency using the framework of generalized parton distributions (GPDs). By constructing nuclear GPDs (nGPDs) through the incorporation of nuclear parton distribution functions, we calculate the nuclear transparency $ T(Q^2) $ for the carbon nucleus as a function of momentum transfer $ Q^2 $ considering various definitions and compare the results obtained with available experimental data. Our finding highlights the importance of choosing a physically motivated definition of nuclear transparency. Moreover, we emphasize that a more reliable determination of nGPDs requires a dedicated global analysis incorporating nuclear data. Such an approach is essential for improving the theoretical understanding of CT and for achieving consistency with experimental observations in the high-$ Q^2 $ regime. |
| title | Fresh look at the nuclear transparency using the generalized parton distributions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.06333 |