Observation of Two New N* Resonances in the Decay psi(3686) -> p(p)over-bar pi(0)

  • M Ablikim
  • , M. N Achasov
  • , D. J Ambrose
  • , F. F An
  • , Q An
  • , Z. H An
  • , J. Z Bai
  • , Y Ban
  • , J Becker
  • , N Berger
  • , M Bertani
  • , J. M Bian
  • , E Boger
  • , O Bondarenko
  • , I Boyko
  • , R. A Briere
  • , V Bytev
  • , X Cai
  • , A Calcaterra
  • , G. F Cao
  • J. F Chang, G Chelkov, G Chen, H. S Chen, J. C Chen, M. L Chen, S. J Chen, Y Chen, Y. B Chen, H. P Cheng, Y. P Chu, Hennessy D Cronin, H. L Dai, J. P Dai, D Dedovich, Z. Y Deng, A Denig, I Denysenko, M Destefanis, W. M Ding, Y Ding, L. Y Dong, M. Y Dong, S. X Du, J Fang, S. S Fang, Luciano FAVA, F Feldbauer, C. Q Feng, R. B Ferroli, C. D Fu, J. L Fu, Y Gao, C Geng, K Goetzen, W. X Gong, W Gradl, M Greco, M. H Gu, Y. T Gu, Y. H Guan, A. Q Guo, L. B Guo, Y. P Guo, Y. L Han, X. Q Hao, F. A Harris, K. L He, M He, Z. Y He, T Held, Y. K Heng, Z. L Hou, H. M Hu, J. F Hu, T Hu, B Huang, G. M Huang, J. S Huang, X. T Huang, Y. P Huang, T Hussain, C. S Ji, Q Ji, X. B Ji, X. L Ji, L. K Jia, L. L Jiang, X. S Jiang, J. B Jiao, Z Jiao, D. P Jin, S Jin, F. F Jing, Nayestanaki N Kalantar, M Kavatsyuk, W Kuehn, W Lai, J. S Lange, J. K. C Leung, C. H Li, Li Cheng, Li Cui, D. M Li, F Li, G Li, H. B Li, J. C Li, K Li, Li Lei, N. B Li, Q. J Li, S. L Li, W. D Li, W. G Li, X. L Li, X. N Li, X. Q Li, X. R Li, Z. B Li, H Liang, Y. F Liang, Y. T Liang, G. R Liao, X. T Liao, B. J Liu, B. J Liu, C. L Liu, C. X Liu, C. Y Liu, F. H Liu, Liu Fang, Liu Feng, H Liu, H. B Liu, H. H Liu, H. M Liu, H. W Liu, J. P Liu, K. Y Liu, Liu Kai, Liu Kun, P. L Liu, S. B Liu, X Liu, X. H Liu, Y Liu, Y. B Liu, Z. A Liu, Liu Zhiqiang, Liu Zhiqing, H Loehner, G. R Lu, H. J Lu, J. G Lu, Q. W Lu, X. R Lu, Y. P Lu, C. L Luo, M. X Luo, T Luo, X. L Luo, M Lv, C. L Ma, F. C Ma, H. L Ma, Q. M Ma, S Ma, T Ma, X. Y Ma, Y Ma, F. E Maas, M Maggiora, Q. A Malik, H Mao, Y. J Mao, Z. P Mao, J. G Messchendorp, J Min, T. J Min, R. E Mitchell, X. H Mo, Morales C. Morales, C Motzko, Muchnoi N. Yu, Y Nefedov, C Nicholson, I. B Nikolaev, Z Ning, S. L Olsen, Q Ouyang, S Pacetti, J. W Park, M Pelizaeus, K Peters, J. L Ping, R. G Ping, R Poling, E Prencipe, C. S. J Pun, M Qi, S Qian, C. F Qiao, X. S Qin, Y Qin, Z. H Qin, J. F Qiu, K. H Rashid, G Rong, X. D Ruan, A Sarantsev, J Schulze, M Shao, C. P Shen, X. Y Shen, H. Y Sheng, M. R Shepherd, X. Y Song, S Spataro, B Spruck, D. H Sun, G. X Sun, J. F Sun, S. S Sun, X. D Sun, Y. J Sun, Y. Z Sun, Z. J Sun, Z. T Sun, C. J Tang, X Tang, E. H Thorndike, H. L Tian, D Toth, M Ullrich, G. S Varner, B Wang, B. Q Wang, J. X Wang, K Wang, L. L Wang, L. S Wang, M Wang, P Wang, P. L Wang, Q Wang, Q. J Wang, S. G Wang, X. F Wang, X. L Wang, Y. D Wang, Y. F Wang, Y. Q Wang, Z Wang, Z. G Wang, Z. Y Wang, D. H Wei, P Weidenkaff, Q. G Wen, S. P Wen, M Werner, U Wiedner, L. H Wu, N Wu, S. X Wu, W Wu, Z Wu, L. G Xia, Z. J Xiao, Y. G Xie, Q. L Xiu, G. F Xu, G. M Xu, H Xu, Q. J Xu, X. P Xu, Y Xu, Z. R Xu, F Xue, Z Xue, L Yan, W. B Yan, Y. H Yan, H. X Yang, T Yang, Y Yang, Y. X Yang, H Ye, M Ye, M. H Ye, B. X Yu, C. X Yu, J. S Yu, S. P Yu, C. Z Yuan, W. L Yuan, Y Yuan, A. A Zafar, A Zallo, Y Zeng, B. X Zhang, B. Y Zhang, C. C Zhang, D. H Zhang, H. H Zhang, H. Y Zhang, J Zhang, J. G Zhang, J. Q Zhang, J. W Zhang, J. Y Zhang, J. Z Zhang, L Zhang, S. H Zhang, T. R Zhang, X. J Zhang, X. Y Zhang, Y Zhang, Y. H Zhang, Y. S Zhang, Z. P Zhang, Z. Y Zhang, G Zhao, H. S Zhao, J. W Zhao, K. X Zhao, Zhao Lei, Zhao Ling, M. G Zhao, Q Zhao, S. J Zhao, T. C Zhao, X. H Zhao, Y. B Zhao, Z. G Zhao, A Zhemchugov, B Zheng, J. P Zheng, Y. H Zheng, Z. P Zheng, B Zhong, J Zhong, L Zhou, X. K Zhou, X. R Zhou, C Zhu, K Zhu, K. J Zhu, S. H Zhu, X. L Zhu, X. W Zhu, Y. M Zhu, Y. S Zhu, Z. A Zhu, J Zhuang, B. S Zou, J. H Zou, J. X. Zuo

Risultato della ricerca: Contributo su rivistaArticolo in rivista

Abstract

Based on 106×106ψ(3686) events collected with the BESIII detector at the BEPCII facility, a partial wave analysis of ψ(3686) →pp̄π0 is performed. The branching fraction of this channel has been determined to be B(ψ(3686)→pp̄π0)=(1.65±0. 03±0.15)×10-4. In this decay, 7 N* intermediate resonances are observed. Among these, two new resonances, N(2300) and N(2570) are significant, one 1/2+ resonance with a mass of 2300-30-0+40+109 MeV/c2 and width of 340-30-58+30+110 MeV/c2, and one 5/2 - resonance with a mass of 2570-10-10+19+34 MeV/c2 and width of 250-24-21+14+69 MeV/c2. For the remaining 5 N* intermediate resonances [N(1440), N(1520), N(1535), N(1650) and N(1720)], the analysis yields mass and width values that are consistent with those from established resonances.

Lingua originaleInglese
RivistaPhysical Review Letters
Volume110
Numero di pubblicazione2
DOI
Stato di pubblicazionePubblicato - 2013

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