- Letter
- Open Access
Anomalous interactions between mesons with nonzero spin and glueballs
Phys. Rev. D 109, L071502 – Published 8 April, 2024
DOI: https://doi.org/10.1103/PhysRevD.109.L071502
Abstract
Topologically nontrivial fluctuations control the anomalous interactions for the and pseudoscalar mesons. We consider the anomalous interactions for mesons with higher spin, the heterochiral nonets with and . Under the approximation of a dilute gas of instantons, the mixing angle between nonstrange and strange mesons decreases strongly as increases, and oscillates in sign. Anomalous interactions also open up new, rare decay channels. For glueballs, anomalous interactions indicate that the state is primarily gluonic.
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References (71)
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