Are Diffractive Events at HERA due to a Gluemoron or a Quarkball?

Abstract

We propose a means of distinguishing between gluon- and quark-seeded systems that may in principle be measured in deep inelastic lepton scattering. As a particular application, we discuss those HERA data on deep inelastic $ep$ scattering which contain a large rapidity gap in the final state. It is standard to interpret these events as being due to ``pomeron" exchange, although precisely what is meant by this remains unclear. Guided by data, we make some rather general statements about these events and in particular we discuss the potential for discerning whether the exchanged colour singlet system can be interpreted as gluonic.

7 pages LATEX plus 1 figure (uuencoded)

References in corpus (8)

• EVIDENCE FOR A SCALAR GLUEBALL
• First Measurement of the Deep--Inelastic Structure of Proton Diffraction
• A PARTON MODEL FOR DIFFRACTIVE PROCESSES IN DEEP INELASTIC SCATTERING
• Diffractive Dissociation in Deep Inelastic Scattering at HERA
• Diffractive jet production in a simple model with applications to HERA
• QCD Analysis of Deep Inelastic Diffractive Scattering at HERA
• Scaling and Diffraction in Deep Inelastic Scattering
• Diffractive Photoproduction of Jets with a Direct Pomeron Coupling at HERA

Cited by in corpus (1)

• Non-Linear Pomeron Trajectory in Diffractive Deep Inelastic Scattering