$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule
Abstract The analyses of the LHCb data on X(2900) in the $$D^- K^+$$ D - K + spectrum are performed. Both dynamically generated and explicitly introduced $$X_1(2900)$$ X 1 ( 2900 ) are considered. The results show that both these two approaches support the interpretation of $$X_1(2900)$$ X 1 ( 2900...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-09-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-021-09603-w |
| Summary: | Abstract The analyses of the LHCb data on X(2900) in the $$D^- K^+$$ D - K + spectrum are performed. Both dynamically generated and explicitly introduced $$X_1(2900)$$ X 1 ( 2900 ) are considered. The results show that both these two approaches support the interpretation of $$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecular state, with $$J^{P}=1^-$$ J P = 1 - and an iso-singlet interpretation is much more favorable. The effect of triangle singularity on the production of $$X_1(2900)$$ X 1 ( 2900 ) is also discussed, and it is found that it cannot be interpreted as a pure triangle cusp. |
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| ISSN: | 1434-6044 1434-6052 |