Quark-antiquark states and their radiative transitions in terms of the spectral integral equation: Light mesons

Anisovich, V.V.; Dakhno, L.G.; Matveev, M.; Nikonov, V. A.; Sarantsev, A.

doi:10.1134/s1063778807030040

Cited by 14 publications

(36 citation statements)

References 20 publications

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“…[6,9,10]. The X(2370) observed in J/ψ → γπ + π − η [11] was suggested to be a good isoscalar candidate of the 5 1 S 0 nonet [6], and the π(2360) observed in a partial wave analysis of pp → ηηπ process [12] was interpreted to be the isovector candidate of the 5 1 S 0 nonet [13].…”

Section: Introductionmentioning

confidence: 99%

Strong decays of theX(2500)newly observed by the BESIII Collaboration

et al. 2016

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Basing on the observation of a new J P C = 0 −+ state, X(2500), in the partial wave analysis of the decay J/ψ → γX → γφφ performed by the BESIII Collaboration, we have evaluated the strong decays of the X(2500) as the 4 1 S0 and 5 1 S0 ss states in the 3 P0 model of meson decay. The predicted total decay width for the 4 1 S0 ss is about 894.5 MeV, and the one for the 5 1 S0 ss is about 271.1 MeV, which is in agreement with the experimental data Γ X(2500) = 230 +64+56 −35−33 MeV. By considering the mass and the total strong decay width of the X(2500), we propose that the X(2500) state can be interpreted as a candidate of the 5 1 S0 ss state.

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Section: Introductionmentioning

confidence: 99%

Strong decays of theX(2500)newly observed by the BESIII Collaboration

et al. 2016

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“…The π(2360) has mass M = 2360 ± 25 MeV and width Γ = 300 +100 −50 MeV, while the π(2070) has mass M = 2070±35 MeV and width Γ = 310 +100 −50 MeV. Anisovich et al suggested π(2360) and π(2070) as the third and fourth radial excitations of the π meson family, respectively [24]. In Ref [7], the two-body strong decays of π(2070) are calculated by the quark pair creation model assuming π(2070) as π(4S).…”

Section: Concise Review Of the Reported Pseudoscalar States Above 2 Gevmentioning

confidence: 99%

“…In Refs. [1,8,9,[24][25][26], X(1835), η(1760), K(1830), and π(1800) are depicted as the states with quantum number 3 1 S 0 . What we will discuss in this paper is the third and fourth radial excitations of pseudoscalar mesons.…”

Section: Mass Spectrum Analysismentioning

confidence: 99%

Constructing new pseudoscalar meson nonets with the observed $X(2100)$, $X(2500)$, and $η(2225)$

Wang,

Luo,

Sun

et al. 2017

Preprint

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Stimulated by the BESIII observation of X(2100), X(2500), and η(2225), we try to pin down new pseudoscalar meson nonets including these states. The analysis of mass spectra and the study of strong decays indicate that X(2120) and η(2225) associated with π(2070) and the predicted kaon K(2150) may form a new pseudoscalar meson nonet. In addition, more experimental data for X(2100) are necessary to determine its structure of nonets. Then, X(2500), X(2370), π(2360), and the predicted kaon K(2414) can be grouped into another new nonet. These assignments to the discussed pseudoscalar states can be further tested in experiment.

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“…The observed linearity of the qq-meson trajectories in the (n, M 2 ) planes [24], where n is the radial quantum number of the qq-meson with mass M, provides us the t-channel singularity V conf ∼ 1/q 4 or, in coordinate representation, V conf ∼ r. In the coordinate representation the confinement interaction can be written in the following potential form [9,19]:…”

Section: Confinement Interaction In the Qq Sectormentioning

confidence: 99%

“…In Section 3 we discuss an idea of the confinement singularity 1/s 2 . Such a singularity in the t-channel (1/t 2 ) corresponds to the linear rising potential which describes meson spectra in qq [19], bb [20] and cc [21] channels and gives correct values for the partial widths of radiative and hadronic decays of confined qq states [22]. Although this singularity is expected to be in the color octet state, it can have also a color singlet component and appear in the s-channel.…”

Section: Introductionmentioning

confidence: 99%