| Autor: |
M. Boglione, U. D’Alesio, C. Flore, J. O. Gonzalez-Hernandez |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2018, Iss 7, Pp 1-28 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP07(2018)148 |
| Popis: |
Abstract New data on the Sivers azimuthal asymmetry measured in semi-inclusive deepinelastic scattering processes have recently been released by the COMPASS Collaboration at CERN. Their increased precision and their particular binning, in terms of Q 2 as well as x, motivates a new extraction of the Sivers function, within the framework of a simple and transparent parametrization. Signals of TMD effects visible in the Sivers asymmetries are critically assessed. A thorough study of the uncertainties affecting the extracted Sivers function is presented, including the low- and large-x regions. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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