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doi:10.1103/physrevlett.120.132001

Cited by 85 publications

(44 citation statements)

References 33 publications

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“…In the above subsection, we carefully investigate the possibility whether the fitted charmoniumlike resonances Y 1 and Y 2 can be treated as two missing charmonium ψ(6S ) and ψ(5D), II: The fitted parameters in a combined fit to experimental data of the e + e − → ψ(2S )π + π − and e + e − → Λ cΛc [7,28,39,40], where the respectively. In our previous studies [15], we found that the contribution of 4S -3D mixture is very significant for explaining both Y(4220) and predicted ψ(4380).…”

Section: Implication Of Charmoniumlike Y States Around 46 Gevmentioning

confidence: 99%

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Are the Y states around 4.6 GeV from e+e− annihilation higher charmonia?

et al. 2020

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In this work, we present the mass spectrum of higher charmonia around and above 4.6 GeV by adopting the unquenched potential model. We perform a combined fit to the updated experimental data of e + e − → ψ(2S )π + π − and e + e − → Λ cΛc . To understand the "platform" structure observed in the range of 4.57 ∼ 4.60 GeV existing in the Λ cΛc invariant mass spectrum of e + e − → Λ cΛc of BESIII, we introduce two resonances in this combined fit to the e + e − → ψ(2S )π + π − and e + e − → Λ cΛc , which have resonance parameters, m Y 1 = 4585 ± 2 MeV, Γ Y 1 = 29.8 ± 8.0 MeV, m Y 2 = 4676 ± 7 MeV, and Γ Y 2 = 85.7 ± 15.0 MeV. Furthermore, combining with our theoretical results, we indicate that the two charmonium-like Y states can be due to two higher charmonia, which are mixtures of 6S and 5D cc states. Their two-body open-charm decay behaviors are given. Under the same framework, our analysis of the data of e + e − → D + s D s1 (2536) − recently released by Belle supports to introduce these two higher charmonia around 4.6 GeV. Additionally, we predict the masses and two-body open-charm decays of six higher charmonia ψ(nS ) and ψ(mD) with n = 7, 8, 9 and m = 6, 7, 8 above 4.6 GeV. Search for these higher charmonia will be an interesting issue for the running BESIII and BelleII, and even the possible Super Tau-Charm Factory discussed in China.

show abstract

Section: Implication Of Charmoniumlike Y States Around 46 Gevmentioning

confidence: 99%

“…Our fit to the experimental data of e + e − → ψ(2S )π + π − from Belle and BESIII[7,39]. Our fit to the experimental data of e + e − → Λ cΛc from Belle and BESIII[28,40].…”

mentioning

confidence: 99%

Are the Y states around 4.6 GeV from e+e− annihilation higher charmonia?

et al. 2020

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show abstract

“…The product of the e þ e − → D þ s D s1 ð2536Þ − þ c:c: cross section and the branching fraction of D s1 ð2536Þ − →D Ã0 K − is measured from the D sDs1 ð2536Þ threshold to 5.59 GeV. DOI: 10.1103/PhysRevD.100.111103 In the past decade, measurements of the exclusive cross sections for e þ e − annihilation into charmed or charmedstrange meson pairs above the open-charm threshold have attracted much attention [1][2][3][4][5][6][7][8][9][10]. These open-charm final states are dominantly produced from the Okubo-Zweig-Iizuka (OZI)-allowed strong decays of excited vector charmonium states (ψ states).…”

mentioning

confidence: 99%

Observation of a vector charmoniumlike state in e+e−→Ds+<

Jia¹,

Shen²,

Yuan³

et al. 2019

Phys. Rev. D

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“…The Y (4600) state was observed for the first time by Belle Collaboration when searching for the Y (4260) in the ISR process e + e − → γ ISR π + π − ψ ′ [15] with a significance of 5.8σ , and then confirmed by BaBar Collaboration in the same ISR process [16]. In addition, Belle also reported a peak with similar mass and width in the Λ + [17] as shown in Fig. 6.…”

Section: Y (4660) Statementioning

confidence: 92%