Journal article 712 views
Evidence for Diquarks in Lattice QCD
Physical Review Letters, Volume: "97", Issue: 22, Start page: 222002
Swansea University Author:
Biagio Lucini
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DOI (Published version): 10.1103/PhysRevLett.97.222002
Abstract
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...
| Published in: | Physical Review Letters |
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| ISSN: | 0031-9007 1079-7114 |
| Published: |
2006
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa27932 |
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| Abstract: |
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. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
22 |
| Start Page: |
222002 |