Observation of a structure in e+e−→ϕη′ at s from 2.05 to 3.08 GeV

The process $e^{+}e^{-} \to \phi \eta^{\prime}$ has been studied for the first time in detail using data sample collected with the BESIII detector at the BEPCII collider at center of mass energies from 2.05 to 3.08 GeV. A resonance with quantum numbers $J^{PC}=1^{--}$ is observed with mass $M$ = (2177.5 $\pm$ 4.8 (stat) $\pm$ 19.5 (syst)) MeV/${ \it{c}^{\mathrm{2}}}$ and width $\Gamma$ = (149.0 $\pm$ 15.6 (stat) $\pm$ 8.9 (syst)) MeV with a statistical significance larger than 10$\sigma$. The observed structure could be identified with the $\phi(2170)$, then the ratio of partial width between the $\phi \eta^{\prime}$ by BESIII and $\phi \eta$ by BABAR is ($\mathcal{B}^{R}_{\phi \eta}\Gamma^{R}_{ee})/{(\mathcal{B}^{R}_{\phi \eta^{\prime}}\Gamma^{R}_{ee})}$ = 0.23 $\pm$ 0.10 (stat) $\pm$ 0.18 (syst), which is smaller than the prediction of the $s\bar{s}g$ hybrid models by several orders of magnitude.

Anita | Li-Yu Daisy Liu | T. Liu | S. Malde | Y. Mo | Y. Wang | G. Zhao | X. Liu | J. Lange | M. Luo | J. Wu | Q. Ouyang | S. Yang | Y. Bai | N. Berger | I. Boyko | S. Cetin | X. Chen | S. Jin | Z. Meng | H. Peng | H. Yang | J. Zhang | Z. Zhang | Z. Zhao | A. Zhemchugov | J. Zhu | Y. Zhu | H. Lu | X. Jiang | B. Wang | L. Dong | J. Li | S. Olsen | Y. Yuan | H. Zhang | S. Fang | X. Zhou | X. Wang | Y. Zhu | C. Zhang | J. Fang | G. Wilkinson | Y. Fang | J. Liu | X. Zhang | H. Chen | Y. Ban | X. Huang | Shuai Liu | Lei Zhang | H. Xiao | Y. Ma | Y. Zheng | Y. Liang | Ling Zhao | Y. Xie | H. Li | J. Tang | Z. Wu | L. Wang | H. Dai | M. Chen | G. Chelkov | R. Poling | M. Albrecht | J. Dai | T. Hu | C. Yuan | C. Yue | Q. An | A. Calcaterra | S. Du | M. Shao | P. Patteri | Y. Hu | L. Xia | J. Yu | G. Huang | P. Kiese | S. Maldaner | K. Wang | Y. Pan | J. Li | F. Harris | Y. Heng | X. Ji | W. Gong | K. Peters | C. Rosner | Y. Wang | M. Destefanis | M. Maggiora | W. Shan | Y. Gao | Y. Wang | X. Li | D. Wang | Y. Zeng | Fang Liu | Y. Lu | C. Qiao | J. Sun | L. Zhou | J. Zhang | J. Biernat | J. Bennett | R. Briere | W. Gradl | A. Guo | Y. Jin | L. Li | T. Luo | S. Marcello | C. Shen | X. Wang | Q. Xu | X. Xu | W. Yan | J. Yin | W. Yuan | H. Ma | X. Luo | X. Ma | Y. Sun | J. Dong | Lei Li | H. Yang | P. Li | Y. Zhang | Y. Yang | J. Zhang | T. Sun | Ke Li | Zhi Yang | Z. You | G. Li | X. Lu | W. Xu | Y. Liu | Z. Li | J. Liu | Y. Sun | G. Tang | Y. Xiao | Z. Zhang | H. Zhang | F. Li | Yan Zhang | X. Zhu | N. Kalantar-Nayestanaki | Z. Sun | M. Wang | D. Zhang | F. Heinsius | L. Huang | Z. Wang | Q. Liu | Y. Liang | C. Feng | R. Mitchell | H. Cai | E. Gersabeck | X. Lyu | M. Kurth | H. Liu | S. Sun | W. Wang | Z. Wang | Y. Zhang | X. Shen | M. Bertani | K. He | Y. Mao | M. Greco | X. Shi | G. Xu | Y. Fu | B. Zhang | Z. Sun | L. Ma | J. Ping | Z. Qin | A. Pathak | D. Dedovich | K. Begzsuren | J. Libby | X. Yuan | L. Sun | A. Yuncu | A. Rivetti | C. Li | W. Li | F. Liu | P. Wang | P. Weidenkaff | C. Zhong | M. Achasov | S. Ahmed | A. Amoroso | O. Bakina | R. Ferroli | D. Bettoni | F. Bianchi | X. Cai | G. Cao | J. Chai | J. Chang | J. Chen | S. Chen | Y. Chen | G. Cibinetto | F. Cossio | A. Dbeyssi | Z. Deng | A. Denig | I. Denysenko | F. Mori | Y. Ding | C. Dong | M. Dong | R. Farinelli | L. Fava | F. Feldbauer | G. Felici | M. Fritsch | C. Fu | X. Gao | I. Garzia | A. Gilman | K. Goetzen | L. Gong | M. Gu | Y. Gu | R. Guo | Y. Guo | A. Guskov | S. Han | X. Hao | T. Held | T. Holtmann | Z. Hou | H. Hu | J. Hu | T. Hussain | W. Andersson | M. Irshad | Q. Ji | X. Ji | X. Jiang | J. Jiao | Z. Jiao | D. Jin | T. Johansson | X. Kang | M. Kavatsyuk | A. Khoukaz | R. Kliemt | L. Koch | O. B. Kolcu | B. Kopf | M. Kuemmel | M. Kuessner | A. Kupść | P. Larin | L. Lavezzi | H. Leithoff | Cheng Li | D. Li | H. Li | P. Li | W. Li | X. Li | X. Li | H. Liang | L. Liao | C. Lin | D. Lin | B. Liu | C. Liu | D. Liu | Feng Liu | H. Liu | Huanhuan Liu | Huihui Liu | S. Liu | Z. Liu | Y. Long | X. Lou | J. Lu | C. Luo | S. Lusso | F. Ma | M. Ma | Q. Ma | X. Ma | F. Maas | Q. A. Malik | A. Mangoni | Z. Mao | J. Messchendorp | G. Mezzadri | J. Min | X. Mo | C. Morales | N. Muchnoi | H. Muramatsu | A. Mustafa | Y. Nefedov | F. Nerling | I. Nikolaev | Z. Ning | S. Nisar | S. Pacetti | M. Papenbrock | M. Pelizaeus | J. Pettersson | R. Ping | A. Pitka | V. Prasad | H. Qi | M. Qi | T. Qi | S. Qian | X. Qin | J. Qiu | K. H. Rashid | C. Redmer | M. Richter | M. Rolo | G. Rong | A. Sarantsev | C. Schnier | K. Schoenning | X. Shan | P. Shen | H. Sheng | J. Song | W. Song | X. Song | S. Sosio | C. Sowa | S. Spataro | G. Sun | Y. Sun | C. Tang | X. Tang | B. Tsednee | I. Uman | L. Wang | Meng Wang | Z. Wang | Zongyuan Wang | T. Weber | D. Wei | S. Wen | U. Wiedner | M. Wolke | L. Wu | L. Wu | Z. Xiao | Y. Xie | X. Xiong | J. Xu | L. Yan | W. Yan | L. Yang | Y. Yang | Yifan Yang | M. Ye | B. Yu | C. Yu | A. Zafar | B. Zhang | J. Zhang | J. Zhang | L. Zhang | T. Zhang | Yao Zhang | Yu Zhang | J. Zhao | J. Zhao | Lei Zhao | M. Zhao | Q. Zhao | S. Zhao | T. Zhao | Y. Zhao | B. Zheng | J. Zheng | B. Zhong | J. Zou | B. C. M. Ablikim | W. Cheng | I. Keshk | R. Kiuchi | W. Kuhn | S. Qu | R. Yang | Q. Zhou | X. Zhou | A. Zhu | K. Zhu | S. Zhu | Z. Zhu | J. Zhuang | B. Zou | L. Gu | I. Balossino | R. Shi | T. Min | P. Luo | Z. Liu | M. Wang | G. Chen | L. Guo | V. Rodin | Ziyi Wang | X. Wu | H. Jiang | Jianyu Zhang | L. Liu | Y. Tan | G. Yu | H. Wang | W. Zhu | Xueqing Yan | C. Wang | Y. Zhang | S. Zhang | P. Adlarson | J. Bloms | N. Cao | W. Chang | D. Chen | X. Cui | X. Dai | S. Gu | C. Guan | T. Han | T. Han | M. Himmelreich | Y. Hou | N. Huesken | W. Imoehl | S. Jaeger | R. Kappert | B. Ke | S. Li | Z. Li | J. Lu | R. Ma | R. Ma | X. Ma | S. Nakhoul | X. Pan | L. Qin | K. Ravindran | M. Rump | Y. Schelhaas | D. Shan | H. Shi | Q. Song | Y. Song | F. Sui | W. Sun | V. Thorén | F. Weidner | L. Wollenberg | S. Xiao | T. Xing | T. Yu | Jiawei Zhang | T. Lenz | X. Qin | X. Liu | H. Wen | J. Zhao

[1]  S. Okubo φ-meson and unitary symmetry model , 1963 .

[2]  J. Iizuka,et al.  Systematics and Phenomenology of Boson Mass Levels. III , 1966 .

[3]  John E. Shelton People's Republic of China , 1973 .

[4]  Hybrid meson decay phenomenology , 1998, hep-ph/9808346.

[5]  for the BaBar Collaboration , 2001 .

[6]  T. Aushev,et al.  Search for lepton-flavor-violating tau-lepton decays to ‘γ at Belle The BELLE collaboration , 2001 .

[7]  D. Lange,et al.  The EvtGen particle decay simulation package , 2001 .

[8]  A. Dell'Acqua,et al.  Geant4 - A simulation toolkit , 2003 .

[9]  Astronomy,et al.  Strong decays of strange quarkonia , 2002, nucl-th/0208072.

[10]  One explanation for the exotic state Y(4260) , 2005, hep-ph/0510228.

[11]  Alexander Zaitsev,et al.  Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts , 2007, 0708.4016.

[12]  NEW HADRON STATES , 2007, hep-ph/0703225.

[13]  M. Yan,et al.  A Candidate for 1-- strangeonium hybrid , 2006, hep-ph/0611319.

[14]  E. al.,et al.  E+e-→K+K-π+π-, K+K-π0π0 and K+K-K+K- cross sections measured with initial-state radiation , 2007, 0704.0630.

[15]  Fry,et al.  e(+)e(-)-> K+K-pi(+)pi(-), K+K-pi(0)pi(0) and K+K-K+K- cross sections measured with initial-state radiation RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 , 2007 .

[16]  M. Yan,et al.  Y(2175): Distinguish Hybrid State from Higher Quarkonium , 2007, hep-ph/0701047.

[17]  Zhi-Gang wang Analysis of Y(2175) as a tetraquark state with QCD sum rules , 2006, hep-ph/0610171.

[18]  Ping Rong-gang,et al.  Event generators at BESIII , 2008 .

[19]  Hua-Xing Chen,et al.  Y(2175) state in the QCD sum rule , 2008, 0801.4603.

[20]  A. Polosa,et al.  Higher tetraquark particles , 2008, 0807.0593.

[21]  T. Riemann,et al.  Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data , 2009, 0912.0749.

[22]  Xin Li,et al.  Design and construction of the BESIII detector , 2010 .

[23]  S. Eidelman,et al.  Hadron Production via e+e- Collisions with Initial State Radiation , 2011, 1105.4975.

[24]  W. T. Ford,et al.  Cross sections for the reactions e+e-→K+K-π+π-, K+K-π0π0, and K+K-K+K- measured using initial-state radiation events , 2012 .

[25]  Xiang Liu,et al.  Non-strange partner of strangeonium-like state Y(2175) , 2012, 1202.4139.

[26]  R. Ping An exclusive event generator for e+e- scan experiments , 2013, 1309.3932.

[27]  Y. Zhang,et al.  BEPCII Performance and Beam Dynamics Studies on Luminosity , 2016 .

[28]  F. Giacosa,et al.  Strong and radiative decays of excited vector mesons and predictions for a new ϕ (1930 ) resonance , 2017, 1708.02593.

[29]  Li-Yu Daisy Liu,et al.  Luminosity measurements for the R scan experiment at BESIII , 2017, Chinese Physics C.

[30]  T. Gutsche,et al.  Selected strong decays of η ( 2225 ) and ϕ ( 2170 ) as Λ Λ ¯ bound states , 2017 .

[31]  Alan D. Martin,et al.  Review of Particle Physics , 2018, Physical Review D.

[32]  Li-Yu Daisy Liu,et al.  Precision Study of η^{'}→γπ^{+}π^{-} Decay Dynamics. , 2018, Physical review letters.

[33]  S. Olsen,et al.  The BESIII physics programme , 2019, Nature Reviews Physics.

[34]  H. Ke,et al.  Study of the strong decays of ϕ(2170) and the future charm-tau factory , 2018, Physical Review D.

[35]  Li-Yu Daisy Liu,et al.  Measurement of e+e−→K+K− cross section at s=2.00 – 3.08  GeV , 2018, Physical Review D.

[36]  Yongliang Yang,et al.  Electromagnetic form factors of Λ hyperon in the vector meson dominance model , 2019, Physical Review D.

[37]  Antonio-José Almeida,et al.  NAT , 2019, Springer Reference Medizin.

[38]  Jun He,et al.  Reconciling the X(2240) with the Y(2175) , 2020, 2004.09701.

[39]  Anita,et al.  Observation of a Resonant Structure in e^{+}e^{-}→K^{+}K^{-}π^{0}π^{0}. , 2020, Physical review letters.

[40]  K. Azizi,et al.  Nature of the vector resonance Y(2175) , 2019, Physical Review D.

[41]  Wei Teufelsdreck,et al.  Chin , 2021, COMARCA PERDIDA.