Exclusive diffraction and Pomeron trajectory in ep collisions
S. Fazio
TL;DR
This paper presents experimental results on exclusive diffraction in ep collisions at HERA, analyzing the Pomeron trajectory with a Regge model, revealing its 'hardness' and non-flat nature, challenging previous claims.
Contribution
It provides new measurements of the Pomeron trajectory in ep collisions and discusses its properties using a Regge-type model, offering insights into diffraction phenomena.
Findings
Pomeron trajectory is 'hard' and non-flat.
Experimental data supports a Regge-type model.
Results challenge previous assumptions about Pomeron behavior.
Abstract
The exclusive diffractive production of vector mesons and real photons in ep collisions has been studied at HERA in a wide kinematic range. Here we present the most recent experimental results together with a Regge-type model. We deduce the Pomeranchuk trajectory (Pomeron) by analyzing the HERA data on deeply virtual Compton scattering (DVCS), and then discuss its basic properties, namely its apparent "hardness" and its "non-flat" behavior, different from the claims of some authors.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research · Particle physics theoretical and experimental studies