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Color dependence of tensor and scalar glueball masses in Yang-Mills theories
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Jack Holligan,
Deog Ki Hong,
Jong-Wan Lee,
C.-J. David Lin,
Biagio Lucini ,
Maurizio Piai ,
Davide Vadacchino
Physical Review D, Volume: 102, Issue: 1
Swansea University Authors:
Ed Bennett , Jack Holligan, Biagio Lucini , Maurizio Piai
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DOI (Published version): 10.1103/physrevd.102.011501
Abstract
We report the masses of the lightest spin-0 and spin-2 glueballs obtained in an extensive lattice study of the continuum and infinite volume limits of Sp(Nc) gauge theories for Nc = 2, 4, 6, 8. We also extrapolate the combined results towards the large-Nc limit. We compute the ratio of scalar and te...
| Published in: | Physical Review D |
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| ISSN: | 2470-0010 2470-0029 |
| Published: |
American Physical Society (APS)
2020
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa54671 |
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| Abstract: |
We report the masses of the lightest spin-0 and spin-2 glueballs obtained in an extensive lattice study of the continuum and infinite volume limits of Sp(Nc) gauge theories for Nc = 2, 4, 6, 8. We also extrapolate the combined results towards the large-Nc limit. We compute the ratio of scalar and tensor masses, and observe evidence that this ratio is independent of Nc. Other lattice studies of Yang-Mills theories at the same space-time dimension provide a compatible ratio. We further compare these results to various analytical ones and discuss them in view of symmetry-based arguments related to the breaking of scale invariance in the underlying dynamics, showing that a constant ratio might emerge in a scenario in which the 0++ glueball is interpreted as a dilaton state. |
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| Issue: |
1 |