ORCID
- Vadacchino, Davide: 0000-0002-5783-5602
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 SpðNcÞ gauge theories for Nc ¼ 2, 4, 6, 8. We also extrapolate the combined results toward 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 0þþ glueball is interpreted as a dilaton state.
DOI
10.1103/physrevd.102.011501
Publication Date
2020-07-20
Publication Title
Physical Review D
Volume
102
Issue
1
ISSN
2470-0010
Embargo Period
2023-08-16
Organisational Unit
School of Engineering, Computing and Mathematics
Recommended Citation
Bennett, E., Holligan, J., Hong, D., Lee, J., Lin, C., Lucini, B., Piai, M., & Vadacchino, D. (2020) 'Color dependence of tensor and scalar glueball masses in Yang-Mills theories', Physical Review D, 102(1). Available at: https://doi.org/10.1103/physrevd.102.011501
