$$X_1(2900)$$ 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...
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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 |
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doaj-5fab856b19694c6aa7f5c9ea10e5dc4a2021-09-19T11:18:19ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522021-09-0181911110.1140/epjc/s10052-021-09603-w$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K moleculeHao Chen0Hong-Rong Qi1Han-Qing Zheng2Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking UniversityDepartment of Engineering Physics, Tsinghua UniversityCollege of Physics, Sichuan UniversityAbstract 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.https://doi.org/10.1140/epjc/s10052-021-09603-w |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hao Chen Hong-Rong Qi Han-Qing Zheng |
spellingShingle |
Hao Chen Hong-Rong Qi Han-Qing Zheng $$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule European Physical Journal C: Particles and Fields |
author_facet |
Hao Chen Hong-Rong Qi Han-Qing Zheng |
author_sort |
Hao Chen |
title |
$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule |
title_short |
$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule |
title_full |
$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule |
title_fullStr |
$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule |
title_full_unstemmed |
$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule |
title_sort |
$$x_1(2900)$$ x 1 ( 2900 ) as a $$\bar{d}_1 k$$ d ¯ 1 k molecule |
publisher |
SpringerOpen |
series |
European Physical Journal C: Particles and Fields |
issn |
1434-6044 1434-6052 |
publishDate |
2021-09-01 |
description |
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. |
url |
https://doi.org/10.1140/epjc/s10052-021-09603-w |
work_keys_str_mv |
AT haochen x12900x12900asabard1kd1kmolecule AT hongrongqi x12900x12900asabard1kd1kmolecule AT hanqingzheng x12900x12900asabard1kd1kmolecule |
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1717375860890140672 |