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The k=2 string tension in four-dimensional SU(N) gauge theories / M. Teper, Biagio Lucini

Physics Letters B, Volume: "B501", Issue: 1-2, Pages: 128 - 133

Swansea University Author: Biagio Lucini

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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...

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Published in: Physics Letters B
ISSN: 03702693
Published: 2000
Online Access: Check full text

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).
College: College of Science
Issue: 1-2
Start Page: 128
End Page: 133