Low x News for Monte Carlo

TL;DR

This review discusses recent developments in low x physics, including the NLO BFKL Pomeron, shadowing corrections, soft-hard interaction matching, and rapidity gap survival, aiming to improve Monte Carlo simulations in QCD.

Contribution

It provides an overview of recent theoretical advances in low x physics relevant for enhancing Monte Carlo codes in QCD.

Findings

Indications of shadowing corrections in HERA data

Progress in matching soft and hard photon-proton interactions

Insights into survival probability for large rapidity gap processes

Abstract

This talk,given at Monte Carlo Workshop, is a review of news in low $x$ physics which, I think, would be useful for writing of the Monte Carlo codes. The following topics are discussed here: (i) the next-to-leading order BFKL Pomeron; (ii) two indications for shadowing corrections (SC) in DIS from HERA data; (iii) matching of "soft" and "hard" photon - proton interactions; and (iv) survival probability for large rapidity gap (LRG) processes in hadron-hadron scattering and DIS. I hope, that our current understanding of these topics will allow us to narrow the gap between the MC codes and our microscopic theory - QCD.