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Non-perturbative QCD effects in forward ...
Bahia, C. A. S....

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Non-perturbative QCD effects in forward scattering at LHC by Bahia, C. A. S. ( Author )
Lemonjar Open Access
N.A
02-10-2015
We study infrared contributions to semihard parton-parton interactions by considering an effective charge whose finite infrared behavior is constrained by a dynamical mass scale. Using an eikonal QCD-based model in order to connect this semihard parton-level dynamics to the hadron-hadron scattering, we obtain predictions for the proton-proton (pp) and antiproton-proton (p¯p) total cross sections, σpp,p¯ptot, and the ratios of the real to imaginary part of the forward scattering amplitude, ρpp,p¯p. We discuss the theoretical aspects of this formalism and consider the phenomenological implications of a class of energy-dependent form factors in the high-energy behavior of the forward amplitude. We introduce integral dispersion relations specially tailored to relate the real and imaginary parts of eikonals with energy-dependent form factors. Our results, obtained using a group of updated sets of parton distribution functions (PDFs), are consistent with the recent data from the TOTEM, AUGER and Telescope Array experiments.
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Article
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English
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MYR 0.00
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https://arxiv.org/abs/1510.00727
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