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Article overview
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Prediction of possible $DK_1$ bound states | Xiang-Kun Dong
; Bing-Song Zou
; | Date: |
24 Sep 2020 | Abstract: | Stimulated by recent experimental observation of $X_1(2900)$ just below the
$ar D_1K$ threshold, we extend our previous study of $ar D_1D$ S-wave bound
state by vector meson exchange to $ar D_1K$ system as well as similar $ar
DK_1$, $D_1K$ and $DK_1$ systems to look for possible bound states. We find
that the potential of $D K_1$ is attractive and strong enough to form bound
states with mass around 3110 MeV for $DK_1(1270)$ and 3240 MeV for
$DK_1(1400)$. $D_1 K$ is also attractive but weaker, hardly enough to form
bound states. While $ar DK_1$ becomes further less attractive, the potential
between $ar D_1 K$ is the weakest, definitely too weak to form any bound
state, which excludes the recently observed $X_1(2900)$ to be a $ar D_1 K$
bound state. We also give the decay properties of the predicted $D K_1$ bound
states. | Source: | arXiv, 2009.11619 | Services: | Forum | Review | PDF | Favorites |
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