An analysis of elastic scattering reactions with a Fermi–Dirac pomeron opaqueness in impact parameter space

In the Bourrely–Soffer–Wu model we introduce for the pomeron a new opaqueness in impact parameter space in terms of different quark contributions described by a Fermi–Dirac distribution. In order to check the validity of this assumption we consider p p , p ¯ p , and π ± p elastic scattering. We emph...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2014-02, Vol.74 (2), p.2736-13, Article 2736
Main Author: Bourrely, Claude
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Cross sections
Diffraction
Elastic scattering
Elementary Particles
Hadrons
Heavy Ions
Mathematical models
Measurement Science and Instrumentation
Momentum transfer
Nuclear Energy
Nuclear Physics
Opacity
Physics
Physics and Astronomy
Pomerons
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
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Summary:In the Bourrely–Soffer–Wu model we introduce for the pomeron a new opaqueness in impact parameter space in terms of different quark contributions described by a Fermi–Dirac distribution. In order to check the validity of this assumption we consider p p , p ¯ p , and π ± p elastic scattering. We emphasize the role of the gluon above the diffraction peak in the differential cross sections. Once these contributions are determined we extend the model to light nuclei elastic reactions like p d , p 4 He and π ± 4 He . The results obtained show a good description of all these elastic processes over the available experimental energy range and moderate momentum transfer.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-014-2736-3