QCD

abbr.

quantum chromodynamics

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

QCD

abbreviation for

(Atomic Physics) quantum chromodynamics

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

QCD

quantum chromodynamics.

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Noun

QCD - a theory of strong interactions between elementary particles (including the interaction that binds protons and neutrons in the nucleus); it assumes that strongly interacting particles (hadrons) are made of quarks and that gluons bind the quarks together

quantum chromodynamics

quantum field theory - the branch of quantum physics that is concerned with the theory of fields; it was motivated by the question of how an atom radiates light as its electrons jump from excited states

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References in periodicals archive

An additional complication is the following: While in quantum electrodynamics (QED) an atomic wave function can approximately be separated into independent parts due to the weak interaction, and the spins of the constituents (nuclei and electrons) can be measured separately as they can be studied in isolation **, in quantum chromodynamics (QCD) it fails as the interactions between fields in an undisturbed proton are much stronger than in the QED case, making even an approximate separation impossible.

The "proton spin crisis"--a quantum query

You didn't need QCD to find out how heavy protons are.

Successful science should inspire higher standards

In this work, we estimate the strong coupling constants of [[OMEGA].sup.0.sub.c] [right arrow] [[XI].sup.+.sub.c][K.sup.-] in the framework of light cone QCD sum rules.

Reanalysis of [[OMEGA].sub.c] [right arrow] [[XI].sup.+.sub.c][K.sup.-] Decay in QCD

Claims stating that QCD is unable to provide an explanation for the pp cross section data have been published in the last decade [9].

On the significance of the upcoming large Hadron Collider proton-proton cross section data

The refinement of lattice QCD described last year substantially minimized those errors.

Quantum bull's-eye: particle-mass prediction hits the mark

The interaction of quarks is described by QCD, which is part of the Standard Model of particle physics.

Mass Spectra and Decay Constants of Heavy-Light Mesons: A Case Study of QCD Sum Rules and Quark Model

Interestingly one can find an interpretation of Dirac equation from this picture, and it is known that Dirac equation with an effective QCD potential can describe hadron masses.

On some new ideas in hadron physics

Now, decades after Wilson devised the lattice-QCD technique, souped-up computer power and improved understanding of QCD theory are making him eat his words.

Starting from square one: the intricate behaviors of quarks may finally yield to calculation

In some recent articles [1-5], a property, which bears on the nonperturbative fermionic Green's functions of QCD, has been put forth under the name of effective locality (EL).

On How QCD Gauge Invariance Gets Realized in the Context of Effective Locality

Specific subjects examined include the search for electroweak single top quark production, B-decays in the heavy-quark expansion, theories with extra dimensions, and evidence for hot, bulk QCD matter and quenching of jets at RHIC.

Hadron collider physics; proceedings