6533b824fe1ef96bd1280b4b
RESEARCH PRODUCT
Stronger C -odd color charge correlations in the proton at higher energy
Adrian DumitruHeikki MäntysaariRisto Paatelainensubject
protonitOdderonNuclear TheoryEquationkvarkitElectroproductionFOS: Physical sciencesMeson productionUnitarityhiukkasfysiikka114 Physical sciencesNuclear Theory (nucl-th)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Glass condensatekvanttiväridynamiikkaNonlinear gluon evolutiondescription
The non-forward eikonal scattering matrix for dipole-proton scattering at high energy obtains an imaginary part due to a $C$-odd three gluon exchange. We present numerical estimates for the perturbative Odderon amplitude as a function of dipole size, impact parameter, their relative azimuthal angle, and light-cone momentum cutoff $x$. The proton is approximated as $\psi_\mathrm{qqq}|qqq\rangle + \psi_\mathrm{qqqg}|qqqg\rangle$, where $\psi_\mathrm{qqq}$ is a non-perturbative three quark model wave function while the gluon emission is computed in light-cone perturbation theory. We find that the Odderon amplitude increases as $x$ decreases from 0.1 to 0.01. At yet lower $x$, the reversal of this energy dependence would reflect the onset of universal small-$x$ renormalization group evolution.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2023-01-09 | Physical Review D |