Decay properties of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mn>1</mml:mn><mml:mrow><mml:mo>−</mml:mo><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math>hybrid state

Chen, Hua-Xing; Cai, Zi-Xing; Huang, Peng-Zhi; Zhu, Shi-Lin

doi:10.1103/physrevd.83.014006

Cited by 28 publications

(22 citation statements)

References 79 publications

(105 reference statements)

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“…This may be the origin of the π 1 (1600) resonance that is treated as a hybrid state in Refs. [29,30], a four-quark state in Ref. [31] or a molecule/four-quark mixing state in Ref.…”

Section: Discussionmentioning

confidence: 99%

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Faddeev fixed center approximation to $π\bar{K} K^*$ system and the $π_1(1600)$

Zhang,

Xie,

Chen

2016

Preprint

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We investigate the three-body system of π KK * by using the fixed-center approximation to the Faddeev equation, taking the interaction between π and K, π and K * , and K and K * from the chiral unitary approach. The study is made assuming scattering of a π on a KK * cluster, which is known to generate the f 1 (1285) state. The resonant structure around 1650 MeV shows up in the modulus squared of the π-( KK * ) f 1 (1285) scattering amplitude and suggests that a π-( KK * ) f 1 (1285) state, with "exotic" quantum numbers J PC = 1 −+ , can be formed. This state can be identified as the observed π 1 (1600) resonance. We suggest that this is the origin of the present π 1 (1600) resonance and propose to look at the π f 1 (1285) mode in future experiments to clarify the issue.

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“…This may be the origin of the π 1 (1600) resonance that is treated as a hybrid state in Refs. [29,30], a four-quark state in Ref. [31] or a molecule/four-quark mixing state in Ref.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the decay properties of the 1 −+ hybrid state are studied within the framework of the QCD sum rules in Ref. [29] and the chiral corrections to the π 1 (1600) state are calculated up to one-loop order in Ref. [30].…”

Section: −64mentioning

confidence: 99%

Faddeev fixed center approximation to $π\bar{K} K^*$ system and the $π_1(1600)$

Zhang,

Xie,

Chen

2016

Preprint

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“…In Refs. [26] the decay properties are studied for π 1 and its non-strange isoscalar partner. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Towards the establishment of the light $J^{P(C)}=1^{-(+)}$ hybrid nonet

Qiu,

Zhao

2022

Preprint

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The observation of the light hybrid candidate η1(1855) by the BESIII Collaboration brings great opportunities for advancing our knowledges about exotic hadrons in the light flavor sector. We show that this observation provides a crucial clue for establishing the J P (C) = 1 −(+) hybrid nonet. Based on the flux tube model picture, the production and decay mechanisms for the J P (C) = 1 −(+) hybrid nonet in the J/ψ radiative decays into two pseudoscalar mesons are investigated. In the I = 0 sector, we find that the SU(3) flavor octet and singlet mixing is non-negligible and apparently deviates from the flavor ideal mixing. Since only signals for one isoscalar η1(1855) are observed in the ηη channel, we investigate two schemes of the nonet structure in which η1(1855) can be either the higher or lower mass state that strongly couples to ηη . Possible channels for detecting the multiplets are suggested. In particular, a combined analysis of the hybrid production in J/ψ → V H, where V and H stand for the light vector mesons and 1 −(+) hybrid states, may provide further evidence for this nonet structure and finally establish these mysterious exotic species in experiment.

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“…In addition, the hybrid meson decay properties are studied within the framework of QCD sum rules in Refs. [25,26]. Besides, some works suggest that the isovector J P C = 1 −+ exotic state might be a fourquark state [27] or a molecule/four-quark mixing state [28].…”

Section: Introductionmentioning

confidence: 99%

Prediction of possible exotic states in the system *

Zhang

Xie

2020

Chinese Phys. C

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We investigate the ηKK * three body system in order to look for possible I G (J P C ) = 0 + (1 −+ ) exotic states within the framework of the fixed center approximation to the Faddeev equation. The study is made assuming scattering of a η on a clusterized systemKK * , which has known to generate the f1(1285) or aK on a clusterized system ηK * , which is shown to generate the K1(1270). In the case of the η-(KK * ) f 1 (1285) scattering, we find evidence of a bound state I G (J P C ) = 0 + (1 −+ ) below the ηf1(1285) threshold with mass around 1700 MeV and width about 180 MeV. On the other hand, considering theK-(ηK * ) K 1 (1270) scattering, we obtain a bound state I(J P ) = 0(1 − ) just below thē KK1(1270) threshold with mass around 1680 MeV and width about 160 MeV.PACS numbers:

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Decay properties of the1−+hybrid state

Cited by 28 publications

References 79 publications

Faddeev fixed center approximation to $π\bar{K} K^*$ system and the $π_1(1600)$

Faddeev fixed center approximation to $π\bar{K} K^*$ system and the $π_1(1600)$

Towards the establishment of the light $J^{P(C)}=1^{-(+)}$ hybrid nonet

Prediction of possible exotic states in the system *

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