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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present the results of a lattice calculation of four-quark states with thequark contents $\bar{b}\bar{c}q_1q_2$ where $q_1,q_2 \in u,d,s$. For the spin 1states, when the light quark ($q_1, q_2$) masses are lighter, we find at leastone energy level below the possible elastic threshold energy levels. Thesecalculations are performed on three dynamical $N_f = 2+1+1$ highly improvedstaggered quark ensembles at lattice spacings of about 0.12, 0.09, and 0.06 fm.We use the overlap action for light to charm quarks while a non-relativisticaction with non-perturbatively improved coefficients is employed for the bottomquark.

$\bar{b}\bar{c}\,q_1q_2$four-quark states from Lattice QCD