Anomalous interactions between mesons with nonzero spin and glueballs
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866909744783949824 |
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| author | Giacosa, Francesco Jafarzade, Shahriyar Pisarski, Robert |
| author_facet | Giacosa, Francesco Jafarzade, Shahriyar Pisarski, Robert |
| contents | Topologically nontrivial fluctuations control the anomalous interactions for the $η$ and and $η\prime$ pseudoscalar mesons. We consider the anomalous interactions for mesons with higher spin, the heterochiral nonets with $J^{P C} = 1^{+ -}$ and $2^{- +}$. Under the approximation of a dilute gas of instantons, the mixing angle between non-strange and strange mesons decreases strongly as $J$ increases, and oscillates in sign. Anomalous interactions also open up new, rare decay channels. For glueballs, anomalous interactions indicate that the $X(2600)$ state is primarily gluonic. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2309_00086 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Anomalous interactions between mesons with nonzero spin and glueballs Giacosa, Francesco Jafarzade, Shahriyar Pisarski, Robert High Energy Physics - Phenomenology High Energy Physics - Lattice High Energy Physics - Theory Topologically nontrivial fluctuations control the anomalous interactions for the $η$ and and $η\prime$ pseudoscalar mesons. We consider the anomalous interactions for mesons with higher spin, the heterochiral nonets with $J^{P C} = 1^{+ -}$ and $2^{- +}$. Under the approximation of a dilute gas of instantons, the mixing angle between non-strange and strange mesons decreases strongly as $J$ increases, and oscillates in sign. Anomalous interactions also open up new, rare decay channels. For glueballs, anomalous interactions indicate that the $X(2600)$ state is primarily gluonic. |
| title | Anomalous interactions between mesons with nonzero spin and glueballs |
| topic | High Energy Physics - Phenomenology High Energy Physics - Lattice High Energy Physics - Theory |
| url | https://arxiv.org/abs/2309.00086 |