Pentaquark and tetraquark states

YR Liu, HX Chen, W Chen, X Liu, SL Zhu - Progress in Particle and …, 2019‏ - Elsevier
The past seventeen years have witnessed tremendous progress on the experimental and
theoretical explorations of the multiquark states. The hidden-charm and hidden-bottom …

Study of doubly heavy tetraquarks in lattice QCD

P Junnarkar, N Mathur, M Padmanath - Physical Review D, 2019‏ - APS
We present the results of a lattice calculation of tetraquark states with quark contents q 1 q 2
Q¯ Q¯, q 1, q 2⊂ u, d, s, c and Q≡ b, c in both spin-0 (J= 0) and spin-1 (J= 1) sectors. This …

[HTML][HTML] The pentaquark candidates in the dynamical diquark picture

RF Lebed - Physics Letters B, 2015‏ - Elsevier
Starting with the dynamical picture of the exotic cc¯-containing states XYZ as the
confinement-induced hadronization of a rapidly separating pair of a compact diquark and …

Analysis of the , , and related hidden-charm pentaquark states with QCD sum rules

ZG Wang - International Journal of Modern Physics A, 2020‏ - World Scientific
In this paper, we restudy the ground state mass spectrum of the diquark–diquark–antiquark-
type uudcc ̄ pentaquark states with the QCD sum rules by carrying out the operator product …

Analysis of the tetraquark states with QCD sum rules

ZG Wang - The European Physical Journal C, 2017‏ - Springer
In this article, we study the J^ PC= 0^++ JPC= 0++ and 2^++ 2++ QQ ̄ Q ̄ Q QQQ¯ Q¯
tetraquark states with the QCD sum rules, and we obtain the predictions M_ X (cc ̄ c ̄ c …

Analysis of and as pentaquark states in the diquark model with QCD sum rules

ZG Wang - The European Physical Journal C, 2016‏ - Springer
In this article, we construct the diquark–diquark–antiquark type interpolating currents, and
we study the masses and pole residues of the J^ P= 3 2^-JP= 3 2-and 5 2^+ 5 2+ hidden …

Dynamical Picture for the Formation and Decay of the Exotic Mesons

SJ Brodsky, DS Hwang, RF Lebed - Physical Review Letters, 2014‏ - APS
We present a new dynamical picture that identifies the formation of the exotic c¯ c-containing
states XYZ with the confinement-induced hadronization of a rapidly separating pair of a …

Analysis of the as the scalar tetraquark state via the QCD sum rules

ZG Wang - International Journal of Modern Physics A, 2020‏ - World Scientific
In this article, we study the axialvector-diquark–axialvector-antidiquark (AA)-type and scalar-
diquark–scalar-antidiquark (SS) type fully open flavor cs ū d ̄ tetraquark states with the spin …

Analysis of the doubly heavy baryon states and pentaquark states with QCD sum rules

ZG Wang - The European Physical Journal C, 2018‏ - Springer
In this article, we study the doubly heavy baryon states and pentaquark states with the QCD
sum rules by carrying out the operator product expansion up to the vacuum condensates of …

Analysis of the vector and axialvector tetraquark states with QCD sum rules

ZG Wang, ZY Di - arxiv preprint arxiv:1807.08520, 2018‏ - arxiv.org
In this article, we construct the axialvector-diquark-axialvector-antidiquark type currents to
study both the vector and axialvector $ QQ\bar {Q}\bar {Q} $ tetraquark states with the QCD …