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Ablikim, M.; Ачасов, М. Н.; Ai, X.; Albayrak, O.; Albrecht, M.; Ambrose, D.; Amoroso, A.; Haddadi, Z.; Kalantar‐Nayestanaki, N.; Kavatsyuk, M.; Loehner, H.; Messchendorp, J. G.; Tiemens, M.

doi:10.1103/physrevd.93.011102

Cited by 54 publications

(31 citation statements)

References 43 publications

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“…It was confirmed by CLEOc , Belle (Yuan et al, 2007) and an additional analysis of BaBar (Lees et al, 2012), with, however, mass values varying in different analyses. We notice that a recent combined analysis of the BESIII data in four different channels e + e − → ωχ c0 (Ablikim et al, 2016a), π + π − h c (Ablikim et al, 2017a), π + π − J/ψ (Ablikim et al, 2017c), and D 0 D * − π + + c.c. (Yuan, 2017) gives a mass of (4219.6 ± (Ablikim et al, 2013a(Ablikim et al, , 2014b(Ablikim et al, , 2015aLiu et al, 2013b;Xiao et al, 2013b).…”

Section: Y (4260) and Other Vector Statesmentioning

confidence: 83%

Hadronic molecules

et al. 2018

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A large number of experimental discoveries especially in the heavy quarkonium sector that did not at all fit to the expectations of the until then very successful quark model led to a renaissance of hadron spectroscopy. Among various explanations of the internal structure of these excitations, hadronic molecules, being analogues of light nuclei, play a unique role since for those predictions can be made with controlled uncertainty. We review experimental evidences of various candidates of hadronic molecules, and methods of identifying such structures. Nonrelativistic effective field theories are the suitable framework for studying hadronic molecules, and are discussed in both the continuum and finite volumes. Also pertinent lattice QCD results are presented. Further, we discuss the production mechanisms and decays of hadronic molecules, and comment on the reliability of certain assertions often made in the literature.

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Section: Y (4260) and Other Vector Statesmentioning

confidence: 83%

Hadronic molecules

et al. 2018

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“…Resonance signals were not observed in a subsequent study above 4.4 GeV [10]. Various models [11][12][13][14][15][16][17] are proposed to explain the observed line shape.…”

Section: Introductionmentioning

confidence: 67%

Cross section measurements of e+e−→ωχc0 from s=

Ablikim¹,

Ачасов²,

Adlarson³

et al. 2019

Phys. Rev. D

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“…It should be noted that the recent experimental measurements of BESIII [30,31] suggest that the cross sections for e + e − → J/ψππ, h c ππ, and ωχ c0 are compatible. If these channels saturate the total width of Y (4260), it will lead to relatively small leptonic decay width for Y (4260) → e + e − [15].…”

Section: The Molecular Picture For Y (4260)mentioning

confidence: 98%

Production ofY(4260)as a hadronic molecule state ofD¯D
Qin
¹
,
Xue
²
,
Zhao
³

2016
Phys. Rev. D
42
4
57
0
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We study the Y (4260) production mechanism in e + e − annihilations in the framework of hadronic molecules and investigate the consequence of such a picture in different decay channels. In the hadronic molecule picture the Y (4260) is described as a mixture state composed of a long-ranged DD1(2420) + c.c. molecule state and a compact cc component. We show that the compositeness relation can still provide a reasonable constraint on the wavefunction renormalization parameter due to the dominance of the molecular component. Such a mechanism can be regarded as a natural consequence of the heavy quark spin symmetry (HQSS) breaking. This study elaborates the molecular picture for the Y (4260) in the e + e − annihilations and affirms that the cross section lineshape of e + e − →DD * π + c.c. in the vicinity of the Y (4260) should have a nontrivial behavior. In this framework we predict that the upper limit of the Y (4260) leptonic decay width is about 500 eV. We also investigate the coupling for D1(2420) → D * π in the 3 P0 quark model and examine the possible HQSS breaking effects due to the deviation from the | 1 P1 and | 3 P1 ideal mixing. This will in turn provide a constraint on the HQSS breaking coupling for the Y (4260) toDD1(2420) + c.c. via its cc component.

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Observation ofe+e−→ωχc1,2nears

Cited by 54 publications

References 43 publications

Hadronic molecules

Hadronic molecules

Cross section measurements of e+e−→ωχc0 from s=

Production ofY(4260)as a hadronic molecule state ofD¯D
Qin
¹
,
Xue
²
,
Zhao
³

2016
Phys. Rev. D
42
4
57
0
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Observation ofe+e−→ωχc1,2nears

Cited by 54 publications

References 43 publications

Hadronic molecules

Hadronic molecules

Cross section measurements of e+e−→ωχc0 from s=

Production ofY(4260)as a hadronic molecule state ofD¯DQin1, Xue2, Zhao3 2016Phys. Rev. D424570View full textAdd to dashboardCite

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Production ofY(4260)as a hadronic molecule state ofD¯D
Qin
¹
,
Xue
²
,
Zhao
³

2016
Phys. Rev. D
42
4
57
0
View full text Add to dashboard Cite