Searching for the rules that govern hadron construction

Just as Quantum Electrodynamics describes how electrons are bound in atoms by the electromagnetic force, mediated by exchange of photons, Quantum Chromodynamics (QCD) describes how quarks are bound inside hadrons by the strong force, mediated by exchange of gluons. At face value, QCD allows hadrons...

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Bibliographic Details
Published in:arXiv.org 2018-02
Main Authors: Shepherd, Matthew R, Dudek, Jozef J, Mitchell, Ryan E
Format: Article
Language:English
Subjects:
Electromagnetic forces
Electrons
Exchanging
Gluons
Hadrons
Mesons
Photons
Quantum chromodynamics
Quantum electrodynamics
Quantum theory
Quarks
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Summary:Just as Quantum Electrodynamics describes how electrons are bound in atoms by the electromagnetic force, mediated by exchange of photons, Quantum Chromodynamics (QCD) describes how quarks are bound inside hadrons by the strong force, mediated by exchange of gluons. At face value, QCD allows hadrons constructed from increasingly many quarks to exist, just as atoms with increasing numbers of electrons exist, yet such complex constructions seemed, until recently, to not be present in nature. In what follows we describe advances in the spectroscopy of mesons that are refining our understanding of the rules for building hadrons from QCD.
ISSN:2331-8422
DOI:10.48550/arxiv.1802.08131