Evidence for diquarks in lattice QCD

Diquarks may play an important role in hadron spectroscopy, baryon decays and color superconductivity. We investigate the existence of diquark correlations in lattice QCD by considering systematically all the lowest energy diquark channels in a color gauge-invariant setup. We measure mass difference...

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Detalles Bibliográficos
Autores principales: Alexandrou, C., de Forcrand, Ph., Lucini, B.
Lenguaje:eng
Publicado: 2006
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.97.222002
http://cds.cern.ch/record/982142
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author Alexandrou, C.
de Forcrand, Ph.
Lucini, B.
author_facet Alexandrou, C.
de Forcrand, Ph.
Lucini, B.
author_sort Alexandrou, C.
collection CERN
description Diquarks may play an important role in hadron spectroscopy, baryon decays and color superconductivity. We investigate the existence of diquark correlations in lattice QCD by considering systematically all the lowest energy diquark channels in a color gauge-invariant setup. We measure mass differences between the various channels and show that the positive parity scalar diquark is the lightest. Quark-quark correlations inside the diquark are clearly seen in this channel, and yield a diquark size of order 1 fm.
id cern-982142
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
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spelling cern-9821422023-03-21T04:37:50Zdoi:10.1103/PhysRevLett.97.222002http://cds.cern.ch/record/982142engAlexandrou, C.de Forcrand, Ph.Lucini, B.Evidence for diquarks in lattice QCDParticle Physics - LatticeDiquarks may play an important role in hadron spectroscopy, baryon decays and color superconductivity. We investigate the existence of diquark correlations in lattice QCD by considering systematically all the lowest energy diquark channels in a color gauge-invariant setup. We measure mass differences between the various channels and show that the positive parity scalar diquark is the lightest. Quark-quark correlations inside the diquark are clearly seen in this channel, and yield a diquark size of order 1 fm.Diquarks may play an important role in hadron spectroscopy, baryon decays and color superconductivity. We investigate the existence of diquark correlations in lattice QCD by considering systematically all the lowest energy diquark channels in a color gauge-invariant setup. We measure mass differences between the various channels and show that the positive parity scalar diquark is the lightest. Quark-quark correlations inside the diquark are clearly seen in this channel, and yield a diquark size of order 1 fm.hep-lat/0609004CERN-PH-TH-2006-173CERN-PH-TH-2006-173oai:cds.cern.ch:9821422006-09-05
spellingShingle Particle Physics - Lattice
Alexandrou, C.
de Forcrand, Ph.
Lucini, B.
Evidence for diquarks in lattice QCD
title Evidence for diquarks in lattice QCD
title_full Evidence for diquarks in lattice QCD
title_fullStr Evidence for diquarks in lattice QCD
title_full_unstemmed Evidence for diquarks in lattice QCD
title_short Evidence for diquarks in lattice QCD
title_sort evidence for diquarks in lattice qcd
topic Particle Physics - Lattice
url https://dx.doi.org/10.1103/PhysRevLett.97.222002
http://cds.cern.ch/record/982142
work_keys_str_mv AT alexandrouc evidencefordiquarksinlatticeqcd
AT deforcrandph evidencefordiquarksinlatticeqcd
AT lucinib evidencefordiquarksinlatticeqcd

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