標題: Color dependence of tensor and scalar glueball masses in Yang-Mills theories
作者: Bennett, Ed
Holligan, Jack
Hong, Deog Ki
Lee, Jong-Wan
Lin, C. -J. David
Lucini, Biagio
Piai, Maurizio
Vadacchino, Davide
物理研究所
Institute of Physics
公開日期: 20-七月-2020
摘要: 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(N-c) gauge theories for N-c = 2, 4, 6, 8. We also extrapolate the combined results toward the large-N-c limit. We compute the ratio of scalar and tensor masses, and observe evidence that this ratio is independent of N-c. 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.
URI: http://dx.doi.org/10.1103/PhysRevD.102.011501
http://hdl.handle.net/11536/155221
ISSN: 1550-7998
DOI: 10.1103/PhysRevD.102.011501
期刊: PHYSICAL REVIEW D
Volume: 102
Issue: 1
起始頁: 0
結束頁: 0
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