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Probing the Small-x Gluon Tomography in Correlated Hard Diffractive Dijet Production in Deep Inelastic Scattering
Yoshitaka Hatta1, Bo-Wen Xiao2, Feng Yuan3
1Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan.
Physical Review Letters
|June 4, 2016
Summary
Researchers explore the link between gluon quantum phase space Wigner distribution and color dipole scattering. This can be experimentally studied using hard diffractive dijet production at an electron-ion collider.
Area of Science:
- Quantum Chromodynamics (QCD)
- High-Energy Particle Physics
- Nuclear Physics
Background:
- The quantum phase space Wigner distribution of small-x gluons is closely connected to the color dipole scattering amplitude.
- Understanding gluon dynamics at small momentum fractions (x) is crucial for high-energy physics.
Purpose of the Study:
- To investigate the relationship between the gluon Wigner distribution and the color dipole scattering amplitude.
- To propose an experimental method for studying these properties at the future Electron-Ion Collider (EIC).
Main Methods:
- Analyzing the hard diffractive dijet production process.
- Measuring the angular correlation between the recoiled nucleon momentum and the dijet transverse momentum.
Main Results:
- The proposed measurement can probe nontrivial correlations within the gluon phase space Wigner distribution.
- This method offers a unique signal for small-x gluon dynamics, including QCD evolution effects.
Conclusions:
- The study provides a pathway to obtain three-dimensional tomographic images of gluons within protons.
- Experimental verification at the EIC will offer new insights into the structure of matter at high energies.
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