Leading neutron production at hera in the color dipole approach

Leading neutron production at hera in the color dipole approach

Author Carvalho, F. Autor UNIFESP Google Scholar
Goncalves, V. P. Google Scholar
Spiering, D. Google Scholar
Navarra, F. S. Google Scholar
Abstract In this work we study leading neutron production in e + p -> e + n + X collisions at high energies and calculate the Feynman xL distribution of these neutrons. The differential cross section is written in terms of the pion flux and of the photon-pion total cross section. We describe this process using the color dipole formalism and, assuming the validity of the additive quark model, we relate the dipole-pion with the well determined dipoleproton cross section. In this formalism we can estimate the impact of the QCD dynamics at high energies as well as the contribution of gluon saturation effects to leading neutron production. With the parameters constrained by other phenomenological information, we are able to reproduce the basic features of the recently released H1 leading neutron spectra.
Keywords Deep-Inelastic Scattering
Pion Exchange
Meson Cloud
Desy-Hera
Nucleon
Distributions
Spectra
Proton
Charm
Dis
Language English
Date 2016
Published in 6th International Conference On Physics Opportunities At An Electron-Ion Collider. Cedex a, v. 112, 2016.
ISSN 2100-014X (Sherpa/Romeo, impact factor)
Publisher E d p sciences
Origin http://dx.doi.org/10.1051/epjconf/201611202010
Access rights Closed access
Type Conference paper
Web of Science ID WOS:000372792100033
URI http://repositorio.unifesp.br/handle/11600/49558

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