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<p><b>New page</b></p><div>{{Short description|Effective field theory of hadron interactions}}<br />
'''Quantum hadrodynamics''' ('''QHD''')<ref name="10.1142/S0218301397000299"/> is an [[Physics:Effective field theory|effective field theory]] pertaining to interactions between [[Physics:Hadron|hadron]]s, that is, hadron-hadron interactions or the inter-hadron force. It is "a framework for describing the nuclear many-body problem as a relativistic system of baryons and mesons".<ref name="10.1142/S0218301397000299">{{Cite journal|doi=10.1142/S0218301397000299|arxiv=nucl-th/9701058|title=Recent Progress in Quantum Hadrodynamics|year=1997|last1=Serot|first1=Brian D.|last2=Walecka|first2=John Dirk|journal=International Journal of Modern Physics E|volume=06|issue=4|pages=515–631|bibcode=1997IJMPE...6..515S|s2cid=119417340}}</ref> Quantum hadrodynamics is closely related and partly derived from [[Physics:Quantum chromodynamics|quantum chromodynamics]], which is the theory of interactions between [[Physics:Quark|quark]]s and [[Physics:Gluon|gluon]]s that bind them together to form hadrons, via the [[Physics:Strong force|strong force]].<br />
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An important phenomenon in quantum hadrodynamics is the [[Physics:Nuclear force|nuclear force]], or residual strong force. It is the [[Physics:Force|force]] operating between those hadrons which are [[Physics:Nucleon|nucleon]]s – [[Physics:Proton|proton]]s and [[Physics:Neutron|neutron]]s – as it binds them together to form the [[Physics:Atomic nucleus|atomic nucleus]]. The [[Physics:Boson|boson]]s which mediate the nuclear force are three types of [[Physics:Meson|meson]]s: [[Physics:Pion|pion]]s, [[Physics:Rho meson|rho meson]]s and [[Physics:Omega meson|omega meson]]s. Since mesons are themselves hadrons, quantum hadrodynamics also deals with the interaction between the carriers of the nuclear force itself, alongside the nucleons bound by it. The hadrodynamic force keeps nuclei bound, against the electrodynamic force which operates to break them apart (due to the mutual repulsion between protons in the nucleus).<br />
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Quantum hadrodynamics, dealing with the nuclear force and its mediating mesons, can be compared to other [[Physics:Quantum field theory|quantum field theories]] which describe fundamental forces and their associated bosons: quantum chromodynamics, dealing with the strong interaction and gluons; [[Physics:Quantum electrodynamics|quantum electrodynamics]], dealing with [[Physics:Electromagnetism|electromagnetism]] and [[Physics:Photon|photon]]s; quantum flavordynamics, dealing with the [[Physics:Weak interaction|weak interaction]] and [[Physics:W and Z bosons|W and Z bosons]].<br />
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==See also==<br />
*[[Physics:Atomic nucleus|Atomic nucleus]]<br />
*[[Physics:Hadron|Hadron]]<br />
*[[Physics:Nuclear force|Nuclear force]]<br />
*[[Physics:Quantum chromodynamics|Quantum chromodynamics]] and [[Physics:Strong interaction|strong interaction]]<br />
*[[Physics:Quantum electrodynamics|Quantum electrodynamics]] and [[Physics:Electromagnetism|electromagnetism]]<br />
*Quantum flavordynamics and [[Physics:Weak interaction|weak interaction]]<br />
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==References==<br />
{{Reflist}}<br />
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{{Quantum field theories}}<br />
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[[Category:Quantum chromodynamics]]<br />
[[Category:Nuclear physics]]<br />
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{{Sourceattribution|Quantum hadrodynamics}}</div>imported>WikiHarold