Experimental study of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>η</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math>decays into vector-vector final states

Ablikim, M.; Bai, J. Z.; Ban, Y.; Bian, J. G.; Cai, Xinxia; Chen, H. F.; Chen, H. S.; Chen, H. X.; Chen, J. C.; Chen, Jin; Chen, Y. B.; Chi, S. P.; Chu, Y. P.; Cui, X. Z.; Dai, Y. S.; Deng, Z. Y.; Dong, L. Y.; Dong, Qingshun; Du, S. X.; Du, Z. Z.; Fang, J.; Fang, S. S.; Fu, C. D.; Gao, C. S.; Gao, Yang; Gu, S.; Gu, Y. T.; Guo, Y. N.; Guo, Y. Q.; Guo, Z. J.; Harris, F. A.; He, K. L.; He, M.; Heng, Y. K.; Hu, H. M.; Hu, T.; Huang, G. S.; Huang, X. P.; Huang, X. T.; Ji, X. B.; Jiang, X. S.; Jiao, J. B.; Jin, D. P.; Jin, S.; Jin, Y.; Lai, Y. F.; Li, G.; Li, H. B.; Li, H. H.; Li, J.; Li, R. Y.; Li, S. M.; Li, W. D.; Li, W. G.; Li, X. L.; Li, X. Q.; Li, Yanzhi; Liang, Y. F.; Liao, H.; Liu, Chanjuan; Liu, F.; Liu, Fang; Liu, H. H.; Liu, H. M.; Liu, J.; Liu, J. B.; Liu, J. P.; Liu, R. G.; Liu, Zijian; Lu, F. X.; Lu, G. R.; Lü, H. J.; Lu, J. G.; Luo, C. L.; C., F.; L., H.; L., L.; M., Q.; B., X.; Mao, Z. P.; Mo, X. H.; Nie, J.; Olsen, S. L.; Peng, H.; Qi, N. D.; Qin, H.; Qiu, J. F.; Ren, Z.; Rong, G.; Shan, L. Y.; Shang, L.; Shen, D. L.; Shen, X. Y.; Sheng, H. Y.; Shi, Feng; Shi, X.; Sun, H.; Sun, J. F.; Sun, S. S.; Sun, Y. Z.; Sun, Zhi‐Wei; Tan, Zhengguo; Tang, X.; Tian, Yang; Tong, G. L.; Varner, G.; Wang, D. Y.; Wang, L.; Wang, L. S.; Wang, M.; Wang, P.; Wang, P. L.; Wang, Weike; Wang, Y. F.; Wang, Z.; Wang, Z. Y.; Wang, Zhe; Wang, Zheng; Wei, C.; Wei, D. H.; Wu, N.; Xia, X. M.; Xie, X. X.; Xin, B.; Xu, G. F.; Xu, Y.; Yan, Mu-Lin; Yang, F.; Yang, H. X.; Yang, J.; Yang, Yifan; Ye, M. H.; Ye, Y. X.; Yi, Z. Y.; Yu, G.; Yuan, C. Z.; Yuan, J. M.; Yuan, Y.; Zang, S. L.; Zeng, Y.; Zhang, B. X.; Zhang, B. Y.; Zhang, C. C.; Zhang, D. H.; Zhang, H. Y.; Zhang, J. W.; Zhang, J. Y.; Zhang, Q. J.; Zhang, X. M.; Zhang, X. Y.; Zhang, Yiyun; Zhang, Z. P.; Zhang, Z. Q.; Zhao, Dongxu; Zhao, J. W.; Zhao, M. G.; Zhao, P. P.; Zhao, W. R.; Zhao, Z. G.; Zheng, H. Q.; Zheng, J. P.; Zheng, Z. P.; Li, Zhou; Zhou, Na; Zhu, K. J.; Zhu, Q. M.; Zhu, Y.; Zhu, Y. S.; Zhu, Y. S.; Zhu, Z. A.; Zhuang, B. A.; Zhuang, X.; Zou, B. S.

doi:10.1103/physrevd.72.072005

Cited by 11 publications

(4 citation statements)

References 8 publications

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“…(ii) The SOZI coupling g S and phase angle δ are strongly correlated. Applying the BES data [28], we find that the meson loop and SOZI amplitudes have constructive interferences in φη and φη ′ , but have destructive interferences in ρπ, K * K + c.c., and ωη(η ′ ), which are automatically given by the SU(3) flavor symmetry. This is a strong constraint for our model parameters, and a sum over the V P decays gives a rate of ∼ 0.64%.…”

mentioning

confidence: 99%

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Towards a Dynamical Understanding of the Non-DD¯Decay ofψ(3770)

Zhang

Zhao

2009

Phys. Rev. Lett.

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We investigate the psi(3770) non-DD decays into VP, where V and P denote vector and pseudoscalar mesons, respectively, via Okubo-Zweig-Iizuka-rule-evading intermediate meson rescatterings in an effective Lagrangian theory. By identifying the leading meson loop transitions and constraining the model parameters with the available experimental data for psi(3770)-->J/psieta, phieta, and rhopi, we succeed in making a quantitative prediction for all psi(3770)-->VP with BRVP from 0.41% to 0.64%. It indicates that the Okubo-Zweig-Iizuka-rule-evading long-range interactions play a role in psi(3770) strong decays, and could be a key towards a full understanding of the mysterious psi(3770) non-DD decay mechanism.

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mentioning

confidence: 99%

“…Branching ratios for ψ(3770) → V P calculated for different mechanisms. The values for J/ψη and φη are fixed at the central values of the experimental data[8], and the experimental upper limit is taken for ρπ[28].…”

mentioning

confidence: 99%

Towards a Dynamical Understanding of the Non-DD¯Decay ofψ(3770)

Zhang

Zhao

2009

Phys. Rev. Lett.

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“…1 shows Dalitz plots, projections, and the result of a partial wave analysis fit for the decay χ C0 → π + π − K + K − . The Dalitz plots show rich structure, and these decays are ideal for studying scalar states [20].…”

Section: Hadronic Decays Of Charmoniummentioning

confidence: 99%

Charmonium Review

Harris

2007

Nuclear Physics B - Proceedings Supplements

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“…Refs. [2], [3]), only an upper limit for the decay into two ω mesons has been set [4]. Apart from these measurements, the Belle experiment was able to determine the product BF B(γγ → η c ) × B(η c → ωω) [5].…”

Section: Introductionmentioning

confidence: 99%

Observation of $η_c\toωω$ in $J/ψ\toγωω$

Ablikim,

Achasov,

Ahmed

et al. 2019

Preprint

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Using a sample of (1310.6 ± 7.0) × 10 6 J/ψ events recorded with the BESIII detector at the symmetric electron positron collider BEPCII, we report the observation of the decay of the (1 1 S0) charmonium state ηc into a pair of ω mesons in the process J/ψ → γωω. The branching fraction is measured for the first time to be B(ηc → ωω) = (2.88 ± 0.10 ± 0.46 ± 0.68) × 10 −3 , where the first uncertainty is statistical, the second systematic and the third is from the uncertainty of B(J/ψ → γηc). The mass and width of the ηc are determined as M = (2985.9 ± 0.7 ± 2.1) MeV/c 2 and Γ = (33.8 ± 1.6 ± 4.1) MeV.

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Experimental study ofηcdecays into vector-vector final states

Cited by 11 publications

References 8 publications

Towards a Dynamical Understanding of the Non-DD¯Decay ofψ(3770)

Towards a Dynamical Understanding of the Non-DD¯Decay ofψ(3770)

Charmonium Review

Observation of $η_c\toωω$ in $J/ψ\toγωω$

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