Measurement of the $e^{+}e^{-}\toΣ^{0}\barΣ^{0}$ cross sections at center-of-mass energies from $2.3864$ to $3.0200$ GeV

Ablikim, M.; Ачасов, М. Н.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Amoroso, A.; An, Q.; Anita, Anita; Bai, Y.; Bakina, O.; Ferroli, R. Baldini; Balossino, I.; Ban, Y.; Begzsuren, K.; Bennett, J. V.; Berger, N.; Bertani, M.; Bettoni, D.; Bianchi, F.; Biernat, J.; Bloms, J.; Bortone, A.; Boyko, I. R.; Briere, R. A.; Cai, H.; Cai, X.; Calcaterra, A.; Cao, G. F.; Cao, N.; Çetin, S. A.; Chang, J. F.; Chang, W. L.; Chelkov, G.; Chen, D. Y.; Chen, G.; Chen, H. S.; Chen, M. L.; Chen, S. J.; Chen, X. R.; Chen, Y. B.; Cheng, W. S.; Cibinetto, G.; Cossio, F.; Cui, X. F.; Dai, H. L.; Dai, J. P.; Dai, Xiongxin; Dbeyssi, A.; Boer, R. B. de; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; Mori, F. De; Ding, Ying; Dong, C.; Dong, J.; Liu, Dong; Dong, M. Y.; Du, S. X.; Fang, J.; Fang, S. S.; Fang, Y.; Farinelli, R.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, Changyong; Fritsch, M.; Fu, C.; Fu, Yuejiao; Gao, X.; Gao, Y.; Garzia, I.; Gersabeck, E.; Gilman, A.; Goetzen, K.; Gong, L.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, Lin; Gu, M. H.; Gu, S.; Gu, Y. T.; Guan, C. Y.; Guo, A. Q.; Guo, Linghua; Guo, R. P.; Guo, Y.; Guskov, A.; Han, Shuo; Han, Tao; Han, T. Z.; Hao, X. Q.; Harris, F. A.; He, K. L.; Heinsius, F. H.; Held, T.; Heng, Y. K.; Himmelreich, M.; Holtmann, T.; Hou, Y.; Hou, Z. L.; Hu, Haibo; Hu, Jifeng; Hu, T.; Hu, Y.; Huang, G. S.; Huang, L. Q.; Huang, X. T.; Huang, Z. C.; Huesken, N.; Hussain, T.; Andersson, W. Ikegami; Imoehl, W.; Irshad, M.; Jaeger, S.; Janchiv, S.; Ji, Q.; Ji, XB; Ji, X. L.; Jiang, H. B.; Jiang, X. S.; Jiang, X. Y.; Jiao, J. B.; Jiao, Z.; Jin, Song; Jin, Y.; Johansson, T.; Kalantar‐Nayestanaki, N.; Kang, Xiaolin; Kappert, R.; Kavatsyuk, M.; Ke, B. C.; Keshk, I. K.; Khoukaz, A.; Kiese, P.; Kiuchi, R.; Kliemt, R.; Koch, L.; Kolcu, O. B.; Kopf, B.; Kuemmel, M.; Kuessner, M.; Kupść, A.; Kurth, M. G.; Kühn, W.; Lane, J. J.; Lange, J.; Larin, P.; Lavezzi, L.; Leithoff, H.; Lellmann, M.; Lenz, T.; Li, C.; Li, C. H.; Li, Cheng; Li, D. M.; Li, F.; Li, G.; Li, H. B.; Li, H. J.; Li, J. L.; Li, J. Q.; Li, Ké; Li, L. K.; Li, Lei; Li, P. L.; Li, P. R.; Li, S. Y.; Li, W. D.; Li, W. G.; Li, X. H.; Li, X. L.; Li, Z. B.; Li, Z. Y.; Han, Li; Liang, Y. F.; Liang, Y. T.; Liao, L. Z.; Libby, J.; Lin, C. X.; Liu, B.; Liu, B. J.; Liu, C. X.; Liu, D.; Liu, D. Y.; Liu, F. H.; Liu, Fang; Liu, Feng; Liu, H. B.; Liu, H. M.; Liu, Huanhuan; Liu, Huihui; Liu, J. B.; Liu, J. Y.; Liu, K.; Liu, K. Y.; Liu, Ke; Liu, L.; Liu, Q.; Liu, S. B.; Liu, Shuai; Liu, T.; Liu, X.; Liu, Y. B.; Liu, Z. A.; Liu, Z. Q.; Long, Y. F.; Lou, X.; Lu, F. X.; Lu, H.; Lu, J. D.; Lu, J. G.; Lu, X. L.; Lu, Yun-Ju; Luo, C. L.; Luo, M. X.; Luo, P. W.; Luo, T.; Luo, X.; Lusso, S.; Lyu, X.; C., F.; L., H.; L., L.; M., M.; M., Q.; Q., R.; T., R.; N., X.; X., X.; Y., X.; M., Y.; Maas, F. E.; Maggiora, M.; Maldaner, S.; Malde, S.; Malik, Q. A.; Mangoni, A.; Mao, Y.; Mao, Z. P.; Marcello, S.; Meng, Z.; Messchendorp, J. G.; Mezzadri, G.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Mo, Y. J.; Muchnoi, N. Yu.; Muramatsu, H.; Nakhoul, S.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Pan, X.; Pan, Y.; Pathak, A.; Patterí, P.; Pelizaeus, M.; Peng, H.; Peters, K.; Pettersson, J.; Ping, J. L.; Ping, R. G.; Pitka, A.; Poling, R.; Prasad, V.; Qi, H. R.; Qi, M. Y.; Qi, T. Y.; Qian, S. J.; Qian, Wei; Qian, Z.; Qiao, C. F.; Liu, Qin; Qin, X. P.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Qu, S. Q.; Rashid, K. H.; Ravindran, K.; Redmer, C. F.; Rivetti, A.; Rodin, V.; Rolo, M.; Rong, G.; Rosner, Ch.; Rump, M.; Sarantsev, A.; Savrié, M.; Schelhaas, Y.; Schnier, C.; Schoenning, K.; Shan, D. C.; Shan, W.; Shan, X. Y.; Shao, M.; Shen, C. P.; Shen, P. X.; Shen, X. Y.; Shi, H. C.; Shi, R. S.; Shi, X.; Song, J. J.; Song, Q. Q.; Song, W. M.; Song, Y. X.; Sosio, S.; Spataro, S.; Sui, F. F.; Sun, G. X.; Sun, J.; Sun, L.; Sun, S. S.; Sun, Tao; Sun, W. Y.; Sun, Y. J.; Sun, Y.; Sun, Yujing; Sun, Z. T.; Tan, Y. H.; Tan, Y. X.; Tang, C. J.; Tang, G. Y.; Tang, J.; Thoren, V.; Tsednee, B.; Uman, I.; Wang, B.; Wang, B. L.; Wang, C. W.; Wang, D. Y.; Wang, H. P.; Wang, K.; Wang, L. L.; Wang, M.; Wang, M. Z.; Wang, Meng; Wang, W. H.; Wang, W. P.; Wang, X.; Wang, X. F.; Wang, X. L.; Wang, Y.; Wang, Y. D.; Wang, Y. F.; Wang, Y. Q.; Wang, Z.; Wang, Z. Y.; Wang, Ziyi; Wang, Zongyuan; Weber, T.; Wei, Dennis; Weidenkaff, P.; Weidner, F.; Wen, S. P.; White, D. J.; Wiedner, U.; Wilkinson, G.; Wolke, M.; Wollenberg, L.; Wu, J. F.; Wu, L. H.; Wu, L. J.; Wu, Xing-Hua; Wu, Z.; Xia, L.; Xiao, H. B.; Xiao, S. Y.; Xiao, Y. J.; Xiao, Z. J.; Xie, Xianchao; Xie, Y.; Xie, Y.; Xing, T. Y.; Xiong, X. A.; Xu, G. F.; Xu, Jun; Xu, Q. J.; Xu, W.; Xu, Xingzhong; Yan, L.; Yan, W. B.; Yan, W.; Yan, Xu; Yang, H. J.; Yang, H. X.; Yang, L.; Yang, R. X.; Yang, Shu; Yang, Y.; Yang, Yifan; Yang, Zhi; Ye, M.; Ye, M. H.; Yin, J. H.; You, Z. Y.; Yu, B. X.; Yu, C. X.; Yu, G. B.; Yu, Jie; Yu, Tao; Yuan, C. Z.; Yuan, W. L.; Yuan, X.; Yuan, Y.; Yuan, Z. Y.; Yue, Chuan; Yuncu, A.; Zafar, A. A.; Zeng, Y.; Zhang, B. X.; Zhang, Guangyi; Zhang, H. H.; Zhang, H. Y.; Zhang, J. L.; Zhang, J. Q.; Zhang, J. W.; Zhang, J. Y.; Zhang, J. Z.; Zhang, Jianyu; Zhang, Jiawei; Zhang, L.; Zhang, Lei; Zhang, S.; Zhang, S. F.; Zhang, T. J.; Zhang, X. Y.; Zhang, Y.; Zhang, Y. H.; Zhang, Y. T.; Zhang, Yan; Zhang, Yao; Zhang, Yi; Zhang, Z. H.; Zhang, Z. Y.; Zhao, G.; Zhao, J. Y.; Zhao, J.; Liu, Zhao; Zhao, Ling; Zhao, M. G.; Zhao, Qian; Zhao, S. J.; Zhao, Yixuan; Zhao, Yumin; Zhao, Z. G.; Zhemchugov, A.; Zheng, B.; Zheng, J. P.; Zheng, Y.; Zhong, B.; Chen, Zhong; Liu, Zhou; Zhou, Q.; Zhou, X.; Zhou, X. R.; Zhu, A. N.; Zhu, Jing; Zhu, K.; Zhu, S.; Zhu, W. J.; Zhu, X.; Zhu, Ying; Zhu, Z. A.; Zou, B. S.; Zou, J. H.

doi:10.48550/arxiv.2110.04510

Cited by 5 publications

(13 citation statements)

References 1 publication

Supporting

Mentioning

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“…Such that, the cross sections near thresholds have been measured by BESIII for other baryon pairs, for examples singly-stranged Σ + Σ− , Σ − Σ+ [108] and Σ 0 Σ0 [109] as shown in Fig. 15, doubly-stranged Ξ − Ξ+ [110] and Ξ 0 Ξ0 [111] as shown in Fig.…”

Section: Besiiimentioning

confidence: 96%

“…BESIII studied the processes e + e − → Σ ± Σ∓ and e + e − → Σ 0 Σ0 reactions from 2.3864 to 3.0200 GeV and determined the timelike EMFFs of Σ hyperons with high precision [108,109]. Born cross sections of Σ ± Σ∓ pair productions, effective form factors |G eff | of Σ + and Σ − , the ratios of Σ + electric and magnetic FFs |G E /G M |, were reported [108].…”

Section: The σ Hyperonsmentioning

confidence: 99%

“…energies between 2.5000 and 3.0200 GeV. Born cross sections are measured with significantly improved precision [109] to those of BaBar [97]. The |G eff | of Σ 0 was also reported.…”

Section: The σ Hyperonsmentioning

confidence: 99%

See 2 more Smart Citations

$R$ measurement and QCD studies at future super $τ-c$ factory

Huang¹,

Yan²,

Zhou³

2022

Preprint

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We review status of R measurement and QCD studies at low energy range, discuss prospects for a super τ −charm factory in 2 − 7 GeV. With a high-luminosity e + e − collider, statistics are no longer problem for R measurement and a precision of 2% or even better is foreseen, that will lead to bring down the uncertainty of hadronic contribution to the QED running coupling constant ∆α had and the anomalous magnetic moment of the muon (a µ ); measure the strong coupling constant α s and the charm quark mass; improve the measurement of the resonance parameters of heavy charmonia. Huge data samples in 2 − 3 GeV will make it possible to study excited states of ρ, ω and φ, or exotic Y (2175); measure electromagnetic form factor of mesons and baryons; and measure fragmentation functions of hadrons.

show abstract

Section: Besiiimentioning

confidence: 96%

Section: The σ Hyperonsmentioning

confidence: 99%

See 1 more Smart Citation

$R$ measurement and QCD studies at future super $τ-c$ factory

Huang¹,

Yan²,

Zhou³

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…[31]. For other baryons one can only find the data for the effective FF obtained from the analysis of the e.m. cross section under assumption [29,30,[32][33][34][35][36]. Therefore an estimation of R B em can not be done without assumptions.…”

Section: Phenomenologymentioning

confidence: 99%

“…Different cross sections for the e + e − → B B channels have been measured by BESIII recent years, and the so-called effective FFs are obtained from data fitting, see Refs. [29][30][31][32][33][34][35][36]. We use these results in order to estimate the numerical influence of the electromagnetic admixture in the angular distribution α B .…”

Section: Introductionmentioning

confidence: 99%

A description of charmonia decays $J/ψ\rightarrow B\bar B$ within the QCD factorisation framework

Kivel

2022

Preprint

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Decays J/ψ → B B into octet baryon-antibaryons pairs are studied within the QCD factorisation framework. The next-to-leading power correction to the leading-order decay amplitude is calculated for the first time. The phenomenological analysis also includes the interference with the electromagnetic decay J/ψ → γ * → B B. The branching fractions and the angular coefficients α B are obtained with an accuracy of about 20%. The obtained results allow us to conclude that the calculated amplitudes provide a dominant contribution and therefore QCD factorisation provides a suitable basis for understanding of these decays.

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Measurement of Λ transverse polarization in e+e− collisions at $$ \sqrt{s} $$ = 3.68 − 3.71 GeV

Ablikim,

Achasov,

Adlarson

et al. 2023

J. High Energ. Phys.

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With data samples collected with the BESIII detector at seven energy points at $$ \sqrt{s} $$ s = 3.68 − 3.71 GeV, corresponding to an integrated luminosity of 333 pb−1, we present a study of the Λ transverse polarization in the e+e−→$$ \Lambda \overline{\Lambda} $$ Λ Λ ¯ reaction. The significance of polarization by combining the seven energy points is found to be 2.6σ including the systematic uncertainty, which implies a non-zero phase between the transition amplitudes of the $$ \Lambda \overline{\Lambda} $$ Λ Λ ¯ helicity states. The modulus ratio and the relative phase of EM-psionic form factors combined with all energy points are measured to be RΨ = $$ {0.71}_{-0.10}^{+0.10} $$ 0.71 − 0.10 + 0.10 ± 0.03 and ∆ΦΨ = $$ {23}_{-8.0}^{+8.8} $$ 23 − 8.0 + 8.8 ± 1.6°, where the first uncertainties are statistical and the second systematic.

show abstract

Measurement of the $e^{+}e^{-}\toΣ^{0}\barΣ^{0}$ cross sections at center-of-mass energies from $2.3864$ to $3.0200$ GeV

Cited by 5 publications

References 1 publication

$R$ measurement and QCD studies at future super $τ-c$ factory

$R$ measurement and QCD studies at future super $τ-c$ factory

A description of charmonia decays $J/ψ\rightarrow B\bar B$ within the QCD factorisation framework

Measurement of Λ transverse polarization in e+e− collisions at $$ \sqrt{s} $$ = 3.68 − 3.71 GeV

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