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The $P$-wave $[cs][\bar{c}\bar{s}]$ tetraquark state: $Y(4260)$ or $Y(4660)$?
$P$-wave $[cs][\bar{c}\bar{s}]$ tetraquark state $Y(4260)$ or $Y(4660)$
2011/1/5
Mass of the P-wave cs-scalar-diquark ¯c¯s-scalar-antidiquark state is computed in the framework of QCD sum rule. The result 4.64 ± 0.25 GeV is in good agreement with the experimental value o...
Tetraquark-based analysis and predictions of the cross sections and distributions for the processes e^+ e^- --> Upsilon(1S) (pi^+ pi^-, K^+ K^-, eta pi^0) near Upsilon(5S)
processes e^+ e^- --> Upsilon(1S) (pi^+ pi^-, K^+ K^-, eta pi^0) Upsilon(5S)
2011/1/5
We calculate the cross sections and final state distributions for the processes e+e−
!(1S)(+−,K+K−, 0) near the (5S) resonance based on the tetraquark hypothesis. This
framew...
Could $Y_{b}(10890)$ be the P-wave $[bq][\bar{b}\bar{q}]$ tetraquark state?
$Y_{b}(10890)$ P-wave $[bq][\bar{b}\bar{q}]$ tetraquark state
2011/1/5
Assuming Yb(10890) as a P-wave bq-scalar-diquark ¯b ¯q-scalar-antidiquark
tetraquark state, the mass of Yb(10890) is computed in the framework of QCD sum rule
method. Technically, contribu...
A relativistic quark model with infrared confinement and the tetraquark state
Relativistic quark model confinement exotic mesons
2011/1/10
We explore the consequences of treating the X(3872) meson as a tetraquark bound state. As dynamical framework we employ a relativistic constituent quark model which includes infrared confinement in an...
In this article, we assume that the Ds(2700) is a tetraquark state, which consists of a scalar diquark and a vector antidiquark, and calculate its mass with the QCD sum rules. The numerical result ind...
Three-body force and the tetraquark interpretation of light scalar mesons
scalar meson tetraquark three-body force
2009/8/14
We study the possible tetraquark interpretation of light scalar meson states a0(980), f0(980), κ,σ within the framework of the non-relativistic potential model. The wave functions of tetraquark states...