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 study the weak decays of exotic tetraquark states ${b\bar c}{q\bar q}$with two heavy quarks. Under the SU(3) symmetry for light quarks, thesetetraquarks can be classified into an octet plus a singlet: $3\bigotimes\bar3=1\bigoplus8$. We will concentrate on the octet tetraquarks with$J^{P}=0^{+}$, and study their weak decays, both semileptonic and nonleptonic.Hadron-level effective Hamiltonian is constructed according to the irreduciblerepresentations of the SU(3) group. Expanding the Hamiltonian, we obtain thedecay amplitudes parameterized in terms of a few irreducible quantities. Basedon these amplitudes, relations for decay widths are derived, which can betested in future. We also give a list of golden channels that can be used tolook for these states at various colliders.

Weak Decays of Doubly-Heavy Tetraquarks ${b\bar c}{q\bar q}$