Multiplicity Distributions and Rapidity Gaps

Abstract

I examine the phenomenology of particle multiplicity distributions, with special emphasis on the low multiplicities that are a background in the study of rapidity gaps. In particular, I analyze the multiplicity distribution in a rapidity interval between two jets, using the HERWIG QCD simulation with some necessary modifications. The distribution is not of the negative binomial form, and displays an anomalous enhancement at zero multiplicity. Some useful mathematical tools for working with multiplicity distributions are presented. It is demonstrated that ignoring particles with pt<0.2 has theoretical advantages, in addition to being convenient experimentally.

24 pages, LaTeX, MSUHEP/940715

References in corpus (4)

• Dijet Production at Large Rapidity Intervals
• Large Rapidity Gaps in PP Collisions
• Parton-Parton Elastic Scattering and Rapidity Gaps at Very High Energies
• Branching Processes and Multi-Particle Production

Cited by in corpus (7)

• Jet Production via Strongly-Interacting Color-Singlet Exchange in $p\bar{p}$ Collisions
• Correlated stopping, proton clusters and higher order proton cumulants
• Analysis of Charged-Particle/Photon Observables in Hadronic Multiparticle Production
• Two Gluon Exchange Model Predictions for Double Pomeron Jet Production
• Using Rapidity Gaps to Distinguish Between Higgs Production by W and Gluon Fusion
• Effects of the Detection Efficiency on Multiplicity Distributions
• Study of γ-charge correlation in heavy ion collisions, various approaches