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Color charge correlations in the proton
<!--HTML-->Color charge correlations in the proton at moderately small x are extracted from its light-cone wave function. The charge fluctuations are far from Gaussian. Correlators are described by n-body GPDs which exhibit interesting dependence on impact parameter as well as on the relative...
Autor principal: | |
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Lenguaje: | eng |
Publicado: |
2021
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/2749396 |
Sumario: | <!--HTML-->Color charge correlations in the proton at moderately small x
are extracted from its light-cone wave function. The charge
fluctuations are far from Gaussian. Correlators are described by
n-body GPDs which exhibit interesting dependence on impact parameter
as well as on the relative transverse momentum (or distance) of the
gluon probes.
This analysis provides initial conditions for small-x
Balitsky-Kovchegov evolution of the dipole scattering amplitude which
include impact parameter and r*b dependence, and with non-zero C-odd
component due to three-gluon exchange.
The color charge correlators could be measured through various
exclusive processes at the EIC. They also determine
unintegrated gluon distributions of the proton relevant for
gamma - p, p - p, and p - A collisions. |
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