Journal article 1139 views
The k=2 string tension in four-dimensional SU(N) gauge theories
Physics Letters B, Volume: "B501", Issue: 1-2, Pages: 128 - 133
Swansea University Author:
Biagio Lucini
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DOI (Published version): 10.1016/S0370-2693(01)00097-1
Abstract
We calculate the k=2 string tensions in SU(4) and SU(5) gauge theories in 3+1 dimensions, and compare them to the k=1 fundamental string tensions. We find, from the continuum extrapolation of our lattice calculations, that K(k=2)/K(k=1) = 1.40(8) in the SU(4) gauge theory, and that K(k=2)/K(k=1) = 1...
| Published in: | Physics Letters B |
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| ISSN: | 03702693 |
| Published: |
2000
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa27962 |
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| Abstract: |
We calculate the k=2 string tensions in SU(4) and SU(5) gauge theories in 3+1 dimensions, and compare them to the k=1 fundamental string tensions. We find, from the continuum extrapolation of our lattice calculations, that K(k=2)/K(k=1) = 1.40(8) in the SU(4) gauge theory, and that K(k=2)/K(k=1) = 1.56(10) in SU(5). We remark upon the way this might constrain the dynamics of confinement and the intriguing implications it might have for the mass spectrum of SU(N) gauge theories. We also note that these results agree closely with the MQCD-inspired conjecture that the SU(N) string tensions satisfy K(k)/K(1) = sin(k.pi/N)/sin(pi/N). |
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| College: |
Faculty of Science and Engineering |
| Issue: |
1-2 |
| Start Page: |
128 |
| End Page: |
133 |