English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We use a color-magnetic interaction model (CMIM), a traditional constituentquark model (CQM) and a multiquark color flux-tube model (MCFTM) tosystematically investigate the properties of the states$[Q_1Q_2][\bar{Q}_3\bar{Q}_4]$ ($Q=c,b$). The dynamical investigation indicatesthat the CMIM can not completely absorb QCD dynamical effects through theeffective constituent quark mass and overestimates the color-magneticinteraction in the states under the assumption of the same spatialconfigurations. The Coulomb interaction plays a critical role in the dynamicalmodel calculations on the heavy hadrons, which induces the fact that none ofbound states $[Q_1Q_2][\bar{Q}_3\bar{Q}_4]$ can be found in the dynamicalmodels. The color configuration$\left[[Q_1Q_2]_{\mathbf{6}_c}[\bar{Q}_3\bar{Q}_4]_{\bar{\mathbf{6}}_c}\right]_{\mathbf{1}}$should be taken seriously in the ground states due to the strong Coulombattraction between the $[Q_1Q_2]_{\mathbf{6}_c}$ and$[\bar{Q}_3\bar{Q}_4]_{\bar{\mathbf{6}}_c}$. The color configuration$\left[[Q_1Q_2]_{\bar{\mathbf{3}}_c}[\bar{Q}_2\bar{Q}_4]_{\mathbf{3}_c}\right]_{\mathbf{1}}$is absolutely dominant in the excited states because of the strong Coulombattraction within the $[Q_1Q_2]_{\bar{\mathbf{3}}_c}$ and$[\bar{Q}_2\bar{Q}_4]_{\mathbf{3}_c}$. The $J/\Psi$-pair resonances recentlyobserved by LHCb are difficult to be accommodated in the CMIM. The broadstructure ranging from 6.2 to 6.8 GeV can be described as the ground tetraquarkstate $[cc][\bar{c}\bar{c}]$ in the various dynamical models. The narrowstructure $X(6900)$ can be identified as the excited state$[cc][\bar{c}\bar{c}]$ with $L=1$ ($L=2$) in the CQM (MCFTM).

Towards the understanding of fully-heavy tetraquark states from various models