Rapidity gap survival in enhanced Pomeron scheme

Area of Science:

• High Energy Physics
• Quantum Field Theory
• Particle Physics

Background:

• Diffractive dijet production in proton-proton collisions is a key area of study in high energy physics.
• Understanding rapidity gap survival (RGS) is crucial for interpreting experimental data from particle colliders.
• Reggeon field theory provides a framework for describing high-energy scattering processes.

Purpose of the Study:

• To investigate the rapidity gap survival probability in diffractive dijet production within the Reggeon field theory framework.
• To analyze the role of enhanced Pomeron-Pomeron interactions in rapidity gap suppression.
• To assess the sensitivity of RGS to color fluctuations in the proton.

Main Methods:

• Application of the phenomenological Reggeon field theory.
• Detailed study of rapidity gap suppression mechanisms, including elastic rescatterings of intermediate partons.
• Comparison of contributions from enhanced (Pomeron-Pomeron interaction) diagrams and eikonal suppression.

Main Results:

• Enhanced Pomeron-Pomeron interactions contribute subdominantly to rapidity gap suppression compared to eikonal suppression.
• The overall RGS factor is shown to be sensitive to color fluctuations within the proton.
• The study quantifies the relative importance of different suppression mechanisms.

Conclusions:

• Elastic rescatterings of constituent partons (eikonal suppression) play a more significant role than enhanced Pomeron-Pomeron interactions in rapidity gap suppression.
• Experimental data on diffractive dijet production can provide valuable constraints on theoretical models of proton structure and interactions.
• The sensitivity of RGS to color fluctuations highlights its potential as a probe of proton internal dynamics.