https://doi.org/10.1140/epjc/s10052-018-6515-4
Regular Article - Theoretical Physics
Absorptive effects and power corrections in low x DGLAP evolution
1
Departamento de Física, CFM, Universidade Federal de Santa Catarina, C.P. 476, Florianópolis, SC, CEP 88040-900, Brazil
2
Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE, UK
3
Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina, St. Petersburg, 188300, Russia
* e-mail: emmanuel.de.oliveira@ufsc.br
Received:
15
October
2018
Accepted:
12
December
2018
Published online:
7
January
2019
We address a long standing problem concerning the scale behaviour of parton densities in the low x, low 
domain. We emphasize the important role of absorptive corrections at low x and use knowledge of diffractive deep inelastic scattering to exclude the absorptive effect from conventional deep inelastic data. In this way we obtain a significantly different low x behaviour of the gluon density, which is now much better described by linear DGLAP evolution. Accounting also for a second power correction, which arises from the freezing of 
at low , leads to an essentially flat behaviour of the low x gluon density.
© The Author(s), 2019
