Evidence of strong higher twist effects in diffractive DIS at HERA at moderate Q2
| Autor: | Motyka, L., Sadzikowski, M., Slominski, W. |
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| Rok vydání: | 2012 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.86.111501 |
| Popis: | We study a twist decomposition of diffractive structure functions in the diffractive deep inelastic scattering (DDIS) at HERA. At low Q2 and at large energy the data exhibit a strong excess, up to about 100%, above the twist 2 NLO DGLAP description. The excess in consistent with higher twist effects. It is found, that complementing the DGLAP fit by twist 4 and 6 components of the GBW saturation model leads to a good description of data at low Q2. We conclude that the DDIS at HERA provides the first, strong evidence of higher twist effects in DIS. Comment: 4 pages, 2 PDF figures |
| Databáze: | arXiv |
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