Sudakov effects and the dipole amplitude

Abstract

In this study we incorporate the Sudakov form factor into the dipole factorization formula, where the hard scale of the former is provided by the photon virtuality $Q^2$. We obtain a general formula which we then apply to the well-known GBW and BGK saturation models. Parameters of the above Sudakov-improved models are successfully fitted to the $F_2$ data from HERA. We observe, in particular, that inclusion of the Sudakov factor on top of the GBW model improves description of data at large $Q^2$.

18 pages, 9 figures, 4 tables

References in corpus (11)

• The CCFM Monte Carlo generator CASCADE 2.2.0
• Sudakov Resummation in Small-x Saturation Formalism
• Dipole factorization for DIS at NLO: Combining the $q\bar{q}$ and $q\bar{q}g$ contributions
• Maximally entangled proton and charged hadron multiplicity in Deep Inelastic Scattering
• Hard scale dependent gluon density, saturation and forward-forward dijet production at the LHC
• Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model
• Sudakov resummation from the BFKL evolution
• Sudakov effects in central-forward dijet production in high energy factorization
• A parton branching with transverse momentum dependent splitting functions
• Saturation and linear transport equation
• Structure functions from renormalization group improved small $x$ evolution

Cited by in corpus (1)

• Heavy quark structure functions from unifying the color dipole picture and double asymptotic scaling approaches