Journal article

Study of the process e+ e- → π0π0J/ψ and neutral charmoniumlike state Zc(3900)0


Authors listAblikim, M.; Achasov, M. N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Amoroso, A.; An, Q.; 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.; Boyko, I; Briere, R. A.; Cai, H.; Cai, X.; Calcaterra, A.; Cao, G. F.; Cao, N.; Cetin, S. A.; Chai, J.; Chang, J. F.; Chang, W. L.; Chelkov, G.; Chen, D. Y.; Chen, G.; Chen, H. S.; Chen, J.; 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, X. C.; Dbeyssi, A.; Dedovich, D.; Deng, Z. Y.; Denig, A.; Denysenko, I; Destefanis, M.; De Mori, F.; Ding, Y.; Dong, C.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Du, S. X.; Fang, J.; Fang, S. S.; Fang, Y.; Farinelli, R.; Fava, L.; Feldbauer, F.; Felici, G.; Feng, C. Q.; Fritsch, M.; Fu, C. D.; Fu, Y.; Gao, X. L.; Gao, Y.; Gao, Y. G.; Garzia, I; Gersabeck, E. M.; Gilman, A.; Goetzen, K.; Gong, L.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, L. M.; Gu, M. H.; Gu, S.; Gu, Y. T.; Guan, C. Y.; Guo, A. Q.; Guo, L. B.; Guo, R. P.; Guo, Y. P.; Guskov, A.; Han, S.; Han, T. T.; 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. R.; Hou, Z. L.; Hu, H. M.; Hu, J. F.; Hu, T.; Hu, Y.; Huang, G. S.; Huang, L. Q.; Huang, X. T.; Huesken, N.; Hussain, T.; Andersson, W. Ikegami; Imoehl, W.; Irshad, M.; Jaeger, S.; Ji, Q.; Ji, Q. P.; Ji, X. B.; Ji, X. L.; Jiang, H. B.; Jiang, X. S.; Jiang, X. Y.; Jiao, J. B.; Jiao, Z.; Jin, D. P.; Jin, S.; Jin, Y.; Johansson, T.; Kalantar-Nayestanaki, N.; Kang, X. S.; 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.; Kupsc, A.; Kurth, M. G.; Khn, W.; Lange, J. S.; Larin, P.; Lavezzi, L.; Leithoff, H.; Lenz, T.; Li, C.; Li, C. H.; Li, Cheng; Li, D. M.; Li, F.; Li, G.; Li, H. B.; Li, H. J.; Li, J. C.; Li, J. L.; Li, Ke; 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, X. N.; Li, Z. B.; Li, Z. Y.; Liang, H.; Liang, Y. F.; Liang, Y. T.; Liao, L. Z.; Libby, J.; Lin, C. X.; Lin, D. 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, L. Y.; Liu, Q.; Liu, S. B.; Liu, Shuai; Liu, T.; Liu, X.; Liu, X. Y.; Liu, Y. B.; Liu, Z. A.; Liu, Z. Q.; Long, Y. F.; Lou, X. C.; Lu, H. J.; Lu, J. D.; Lu, J. G.; Lu, X. L.; Lu, Y.; Lu, Y. P.; Luo, C. L.; Luo, M. X.; Luo, P. W.; Luo, T.; Luo, X. L.; Lusso, S.; Lyu, X. R.; Ma, F. C.; Ma, H. L.; Ma, L. L.; Ma, M. M.; Ma, Q. M.; Ma, R. Q.; Ma, R. T.; Ma, X. N.; Ma, X. X.; Ma, X. Y.; Ma, Y. M.; Maas, F. E.; Maggiora, M.; Maldaner, S.; Malde, S.; Malik, Q. A.; Mangoni, A.; Mao, Y. J.; Mao, Z. P.; Marcello, S.; Meng, Z. X.; Messchendorp, J. G.; Mezzadri, G.; Min, J.; Min, T. J.; Mitchell, R. E.; Mo, X. H.; Mo, Y. J.; Morales, C. Morales; Muchnoi, N. Yu; Muramatsu, H.; Mustafa, A.; Nakhoul, S.; Nefedov, Y.; Nerling, F.; Nikolaev, I. B.; Ning, Z.; Nisar, S.; Olsen, S. L.; Ouyang, Q.; Pacetti, S.; Pan, X.; Pan, Y.; Papenbrock, M.; Pathak, A.; Patteri, P.; Pelizaeus, M.; Peng, H. P.; Peters, K.; Pettersson, J.; Ping, J. L.; Ping, R. G.; Pitka, A.; Poling, R.; Prasad, V; Qi, H.; Qi, H. R.; Qi, M.; Qi, T. Y.; Qian, S.; Qiao, C. F.; Qin, L. Q.; Qin, X. P.; Qin, X. S.; Qin, Z. H.; Qiu, J. F.; Qu, S. Q.; Rashid, K. H.; Ravindran, K.; Redmer, C. F.; Richter, M.; Rivetti, A.; Rodin, V; Rolo, M.; Rong, G.; Rosner, Ch; Rump, M.; Sarantsev, A.; 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.; Sheng, H. Y.; Shi, H. C.; Shi, R. S.; Shi, X.; Shi, X. D.; Song, J. J.; Song, Q. Q.; Song, W. M.; Song, X. Y.; Song, Y. X.; So

Publication year2020

JournalPhysical Review D

Volume number102

Issue number1

ISSN2470-0010

eISSN2470-0029

DOI Linkhttps://doi.org/10.1103/PhysRevD.102.012009

PublisherAmerican Physical Society


Abstract
Cross sections of the process e(+)e(-) -> pi(0)pi(0)J/psi at center-of-mass energies between 3.808 and 4.600 GeV are measured with high precision by using 12.4 fb(-1) of data samples collected with the BESIII detector operating at the BEPCII collider facility. A fit to the measured energy-dependent cross sections confirms the existence of the charmoniumlike state Y(4220). The mass and width of the Y(4220) are determined to be (4220.4 +/- 2.4 +/- 2.3) MeV/c(2) and (46.2 +/- 4.7 +/- 2.1) MeV, respectively, where the first uncertainties are statistical and the second systematic. The mass and width are consistent with those measured in the process e(+)e(-) -> pi(+) pi(-) J/psi. The neutral charmonium-like state Z(c)(3900)(0) is observed prominently in the pi(0)J/psi invariant-mass spectrum, and, for the first time, an amplitude analysis is performed to study its properties. The spin-parity of Z(c) (3900)(0) is determined to be J(P) = 1(+), and the pole position is (3893.1 +/- 2.2 +/- 3.0) - i(22.2 +/- 2.6 +/- 7.0) MeV/c(2), which is consistent with previous studies of electrically charged Z(c) (3900)(+/-). In addition, cross sections of e(+)e(-) -> pi(0)Z(c) (3900)(0) -> pi(0)pi(0)J/psi are extracted, and the corresponding line shape is found to agree with that of the Y(4220).



Citation Styles

Harvard Citation styleAblikim, M., Achasov, M., Adlarson, P., Ahmed, S., Albrecht, M., Amoroso, A., et al. (2020) Study of the process e+ e- → π0π0J/ψ and neutral charmoniumlike state Zc(3900)0, Physical Review D (particles, fields, gravitation, and cosmology), 102(1), Article 012009. https://doi.org/10.1103/PhysRevD.102.012009

APA Citation styleAblikim, M., Achasov, M., Adlarson, P., Ahmed, S., Albrecht, M., Amoroso, A., An, Q., Anita, Bai, Y., Bakina, O., Ferroli, R., Balossino, I., Ban, Y., Begzsuren, K., Bennett, J., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., ...So (2020). Study of the process e+ e- → π0π0J/ψ and neutral charmoniumlike state Zc(3900)0. Physical Review D (particles, fields, gravitation, and cosmology). 102(1), Article 012009. https://doi.org/10.1103/PhysRevD.102.012009


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