Diffraction and correlations at the LHC: Definitions and observables.

Khoze, V.A.; Krauss, F.; Martin, A.D.; Ryskin, M.G.; Zapp, K.C.

Abstract

We note that the definition of diffractive events is a matter of convention. We discuss two possible “definitions”: one based on unitarity and the other on Large Rapidity Gaps (LRG) or Pomeron exchange. LRG can also arise from fluctuations and we quantify this effect and some of the related uncertainties. We find care must be taken in extracting the Pomeron contribution from LRG events. We show that long-range correlations in multiplicities can arise from the same multi-Pomeron diagrams that are responsible for LRG events, and we explain how early LHC data can illuminate our understanding of ‘soft’ interactions.

Citation

Khoze, V., Krauss, F., Martin, A., Ryskin, M., & Zapp, K. (2010). Diffraction and correlations at the LHC: Definitions and observables. The European Physical Journal C, 69(1-2), 85-93. https://doi.org/10.1140/epjc/s10052-010-1392-5

• Journal Article Type: Article
• Online Publication Date: Aug 12, 2010
• Publication Date: 2010-09
• Deposit Date: Jan 23, 2012
• Journal: European Physical Journal C: Particles and Fields
• Print ISSN: 1434-6044
• Electronic ISSN: 1434-6052
• Publisher: SpringerOpen
• Peer Reviewed: Peer Reviewed
• Volume: 69
• Issue: 1-2
• Pages: 85-93
• DOI: https://doi.org/10.1140/epjc/s10052-010-1392-5