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Search: authors:"S. S. Agaev"

3 papers found.
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Spectroscopic parameters and decays of the resonance \(Z_b(10610)\)

The resonance \(Z_b(10610)\) is investigated as the diquark–antidiquark \( Z_b=[bu][\overline{bd}]\) state with spin–parity \(J^{P}=1^{+}\). The mass and current coupling of the resonance \(Z_b(10610)\) are evaluated using QCD two-point sum rule and taking into account the vacuum condensates up to ten dimensions. We study the vertices \(Z_b\Upsilon (nS)\pi \ (n=1,2,3)\) by applying ...

Interpretation of the new \(\Omega _c^{0}\) states via their mass and width

The masses and pole residues of the ground and first radially excited \( \Omega _c^{0}\) states with spin–parities \(J^{P}=1/2^{+},\,3/2^{+}\), as well as P-wave \(\Omega _c^{0}\) with \(J^{P}=1/2^{-},\,3/2^{-}\) are calculated by means of the two-point QCD sum rules. The strong decays of \(\Omega _c^{0}\) baryons are also studied and the widths of these decay channels are ...

Open charm-bottom axial-vector tetraquarks and their properties

The charged axial-vector \(J^{P}=1^{+}\) tetraquarks \(Z_{q}=[cq][\bar{b} \bar{q} ]\) and \(Z_{s}=[cs][\bar{b} \bar{s}]\) with the open charm-bottom contents are studied in the diquark–antidiquark model. The masses and meson–current couplings of these states are calculated by employing a QCD two-point sum rule approach, where the quark, gluon and mixed condensates up to eight ...