The $J^P=1^{+}$ $ud\bar{s}\bar{s}$ Tetraquark

Abstract

Using the color-magnetic interaction Hamiltonian with SU(3) flavor symmetry breaking, we perform a schematic study of the masses of the $J^P=1^{+}$ tetraquarks in the anti-decuplet representation. After diagonalizing the mass matrix, we find the $ud\bar{s}\bar{s}$ tetraquark lies around 1347 MeV. It decays into $K^{+}{K}^0{\pi }^0,K^{+}{K}^{+}{\pi }^{-},K^0{K}^0{\pi }^{+}$ via P-wave. The dual suppression from the not-so-big three-body phase space and P-wave decay barrier may render this exotic state rather narrow. Future experimental exclusion of this state will cast doubt on the validity of applying the simple color-magnetic Hamiltonian to the multiquark system.

References in corpus (6)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Detailed Analysis of the Tetraquark Potential and Flip-Flop in SU(3) Lattice QCD
• Systematics of Exotic Cascade Decays
• Pentaquark implications for exotic mesons
• Axial vector tetraquark with S=+2
• On a possible tetraquark cousin of the Theta^+

Cited by in corpus (11)

• Pentaquark and Tetraquark states
• Hidden-charm pentaquarks and $P_c$ states
• Masses of doubly heavy-quark baryons in an extended chromomagnetic model
• Exotic Tetraquark ud bar[s] bar[s] of J^P=0^+ in the QCD Sum Rule
• Mass spectra of doubly heavy tetraquarks in an improved chromomagnetic interaction model
• Hidden-Charm Tetraquarks and Charged Zc States
• Iterative method to compute the Fermat points and Fermat distances of multiquarks
• Mass spectra and decays of open-heavy tetraquark states
• SU(3) analysis of fully-light tetraquarks in heavy meson weak decays
• Low-lying ud anti-s anti-s configurations in a non-relativistic constituent quark model
• Search for a promising tetraquark candidate $X(ud\bar{s}\bar{s})$ in $pn\to \Lambda \Lambda X$