The possible candidates of tetraquark : $Z_b(10610)$ and $Z_b(10650)$

Abstract

Using the chromomagnetic interaction Hamiltonian with proper account for the SU(3) flavor symmetry breaking, we have performed a schematic study on the masses of $S-$wave heavy tetraquarks as $bq\bar{b}\bar{q}$ ($q$ denotes $u$, $d$, $s$ quark). It is found that the numeral results for $bu\bar{b}\bar{d}$ or $bd\bar{b}\bar{u}$ with $1^{+}$ quantum number are 10612 MeV and 10683 MeV respectively, which are well compatible with the recent detected charged bottomonium-like $Z_b(10610)$ and $Z_b(10650)$. Theoretically, we also investigate the possible tetraquark states of $1^{++}$ and $2^{+}$ due to the charge conjugation as the potential candidates for the updating experiments.

arXiv comment6 pages, 3 tables

Cited by in corpus (6)

• Pentaquark and Tetraquark states
• The Physics of the B Factories
• Confirming the molecular nature of the $Z_b(10610)$ and the $Z_b(10650)$
• Possible interpretation of the $Z_b$(10610) and $Z_b$(10650) in a chiral quark model
• Exotic Charmonium and Bottomonium-like Resonances
• Charged-to-neutral heavy meson yield ratio at the Z_b^0 resonances as a probe of the I^G(J^P)=0^-(1^+) channel