Transverse momentum dependent transversely polarized distributions at next-to-next-to-leading-order
We calculate the matching of the transversity and pretzelosity transverse momentum dependent distributions (TMD) on transversity collinear distribution at the next-to-next-to-leading order (NNLO). We find that the matching coefficient for pretzelosity distribution is zero, despite the matrix element...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/12869 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/12869 |
| Access Level: | acceso abierto |
| Palabra clave: | NLO Computations QCD Phenomenology Física-Modelos matemáticos Partículas Teoría de los quanta 2208 Nucleónica 2210.23 Teoría Cuántica |
| Sumario: | We calculate the matching of the transversity and pretzelosity transverse momentum dependent distributions (TMD) on transversity collinear distribution at the next-to-next-to-leading order (NNLO). We find that the matching coefficient for pretzelosity distribution is zero, despite the matrix element for it is nontrivial. This result suggests that the pretzelosity matches a twist-4 distribution. The matching for transversity TMD distributions is provided for both parton distribution functions and fragmentation functions cases. |
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