Categorizing resonancesX(1835),X(2120), andX

Abstract

Categorizing resonances X(1835), X(2120) and X( 2370) in the pseudoscalar meson family

High-spin mesons below 3 GeV

“…After the QPC model was proposed by Micu [57], this model was further developed by the Orsay group [58][59][60][61][62]. Later, this model was widely applied to study the OZI-allowed strong decay of hadrons [12,[63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79].…”

$$D_{s1}^*(2860)$$ D s 1 ∗ ( 2860 ) and $$D_{s3}^*(2860)$$ D s 3 ∗ ( 2860 ) : candidates for $$1D$$ 1 D charmed-strange mesons

“…In the following, we apply the quark pair creation (QPC) model [23][24][25][26][27][28][29][30][31][32][33] to describe the OZI-allowed two-body strong decays shown in Table 2, where the QPC model was extensively adopted to study the strong decay of hadrons [5,16,[34][35][36][37][38][39][40][41][42][43]. In the QPC model, the quark-antiquark pair is created in QCD vacuum with vacuum quantum number J PC = 0 ++ .…”

Study of two-photon decays of pseudoscalar mesons via J/ψ radiative decays

“…Another pseudoscalar meson, the ηð1760Þ, has been proposed as a mixture of a glueball with a conventional qq state [8], rather than a pure qq meson or a glueball, and this hypothesis is supported by the large production rate of the ηð1760Þ in J=ψ → γωω decays [9,10]. The nature of the Xð1835Þ is still an open question although a number of theoretical interpretations have been proposed, including an NN bound state [11], baryonium with sizable gluon content [12,13], a pseudoscalar glueball [14], a radial excitation of the η 0 [15], and an η c -glueball mixture [16]. None of these interpretations have been completely ruled out or confirmed.…”