Article: Confirmation of the X(1835) and observation of the resonances X(2120) and X(2370) in J/ψ→γπ +π -η ′

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TitleConfirmation of the X(1835) and observation of the resonances X(2120) and X(2370) in J/ψ→γπ +π -η ′
AuthorsAblikim, M41
Achasov, MN13
An, L18
An, Q20
An, ZH41
Bai, JZ41
Baldini, R14
Ban, Y36
Becker, J2
Berger, N41
Bertani, M14
Bian, JM41
Boyko, I27
Briere, RA21
Bytev, V27
Cai, X41
Cao, GF41
Cao, XX41
Chang, JF41
Chelkov, G6 27
Chen, G41
Chen, HS41
Chen, JC41
Chen, ML41
Chen, SJ5
Chen, Y41
Chen, YB41
Cheng, HP31
Chu, YP41
CroninHennessy, D8
Dai, HL41
Dai, JP41
Dedovich, D27
Deng, ZY41
Denysenko, I27 42
Destefanis, M24
Ding, Y28
Dong, LY41
Dong, MY41
Du, SX16
Duan, MY45
Fan, RR41
Fang, J41
Fang, SS41
Feldbauer, F2
Feng, CQ20
Fu, CD41
Fu, JL5
Gao, Y38
Geng, C20
Goetzen, K35
Gong, WX41
Greco, M24
Grishin, S27
Gu, MH41
Gu, YT18
Guan, YH1
Guo, AQ23
Guo, LB26
Guo, YP23
Hao, XQ41
Harris, FA22
He, KL41
He, M41
He, ZY23
Heng, YK41
Hou, ZL41
Hu, HM41
Hu, JF1
Hu, T41
Huang, B41
Huang, GM17
Huang, JS32
Huang, XT7
Huang, YP41
Hussain, T34
Ji, CS20
Ji, Q41
Ji, XB41
Ji, XL41
Jia, LK41
Jiang, LL41
Jiang, XS41
Jiao, JB7
Jiao, Z31
Jin, DP41
Jin, S41
Jing, FF38
Kavatsyuk, M3
Komamiya, S33
Kuehn, W30
Lange, JS30
Leung, JKC11
Li, C20
Li, C20
Li, DM16
Li, F41
Li, G41
Li, HB41
Li, JC41
Li, L41
Li, NB26
Li, QJ41
Li, WD41
Li, WG41
Li, XL7
Li, XN41
Li, XQ23
Li, XR41
Li, ZB25
Liang, H20
Liang, YF43
Liang, YT30
Liao, GR37
Liao, XT41
Liu, BJ44
Liu, BJ11
Liu, CL21
Liu, CX41
Liu, CY41
Liu, FH45
Liu, F41
Liu, F17
Liu, GC41
Liu, H41
Liu, HB1
Liu, HM41
Liu, HW41
Liu, JP15
Liu, K36
Liu, KY28
Liu, Q22
Liu, SB20
Liu, X10
Liu, XH41
Liu, YB23
Liu, YW20
Liu, Y41
Liu, ZA41
Liu, ZQ41
Loehner, H3
Lu, GR32
Lu, HJ31
Lu, JG41
Lu, QW45
Lu, XR1
Lu, YP41
Luo, CL26
Luo, MX12
Luo, T41
Luo, XL41
Ma, CL1
Ma, FC28
Ma, HL41
Ma, QM41
Ma, T41
Ma, X41
Ma, XY41
Maggiora, M24
Malik, QA34
Mao, H41
Mao, YJ36
Mao, ZP41
Messchendorp, JG3
Min, J41
Mitchell, RE39
Mo, XH41
Motzko, C2
Muchnoi, NYu13
Nefedov, Y27
Ning, Z41
Olsen, SL29
Ouyang, Q41
Pacetti, S14
Pelizaeus, M22
Peters, K35
Ping, JL26
Ping, RG41
Poling, R8
Pun, CSJ11
Qi, M5
Qian, S41
Qiao, CF1
Qin, XS41
Qiu, JF41
Rashid, KH34
Rong, G41
Ruan, XD18
Sarantsev, A4 27
Schulze, J2
Shao, M20
Shen, CP22
Shen, XY41
Sheng, HY41
Shepherd, MR39
Song, XY41
Sonoda, S33
Spataro, S24
Spruck, B30
Sun, DH41
Sun, GX41
Sun, JF32
Sun, SS41
Sun, XD41
Sun, YJ20
Sun, YZ41
Sun, ZJ41
Sun, ZT20
Tang, CJ43
Tang, X41
Tang, XF37
Tian, HL41
Toth, D8
Varner, GS22
Wan, X41
Wang, BQ36
Wang, K41
Wang, LL19
Wang, LS41
Wang, M7
Wang, P41
Wang, PL41
Wang, Q41
Wang, SG36
Wang, XL20
Wang, YD20
Wang, YF41
Wang, YQ7
Wang, Z41
Wang, ZG41
Wang, ZY41
Wei, DH37
Wen, SP41
Wiedner, U2
Wu, LH41
Wu, N41
Wu, W28
Wu, Z41
Xiao, ZJ26
Xie, YG41
Xu, GF41
Xu, GM36
Xu, H41
Xu, Y23
Xu, ZR20
Xu, ZZ20
Xue, Z41
Yan, L20
Yan, WB20
Yan, YH9
Yang, HX41
Yang, M41
Yang, T18
Yang, Y17
Yang, YX37
Ye, M41
Ye, MH19
Yu, BX41
Yu, CX23
Yu, L17
Yuan, CZ41
Yuan, WL26
Yuan, Y41
Zafar, AA34
Zallo, A14
Zeng, Y9
Zhang, BX41
Zhang, BY41
Zhang, CC41
Zhang, DH41
Zhang, HH25
Zhang, HY41
Zhang, J26
Zhang, JW41
Zhang, JY41
Zhang, JZ41
Zhang, L5
Zhang, SH41
Zhang, TR26
Zhang, XJ41
Zhang, XY7
Zhang, Y41
Zhang, YH41
Zhang, ZP20
Zhang, ZY15
Zhao, G41
Zhao, HS41
Zhao, J20
Zhao, J41
Zhao, L20
Zhao, L41
Zhao, MG23
Zhao, Q41
Zhao, SJ16
Zhao, TC40
Zhao, XH5
Zhao, YB41
Zhao, ZG20
Zhao, ZL18
Zhemchugov, A6 27
Zheng, B41
Zheng, JP41
Zheng, YH1
Zheng, ZP41
Zhong, B41
Zhong, J2
Zhong, L38
Zhou, L41
Zhou, XK1
Zhou, XR20
Zhu, C41
Zhu, K41
Zhu, KJ41
Zhu, SH41
Zhu, XL38
Zhu, XW41
Zhu, YS41
Zhu, ZA41
Zhuang, J41
Zou, BS41
Zou, JH41
Zuo, JX41
Zweber, P8
KeywordsDecay mode
Invariant-mass spectra
Radiative photons
Statistical significance
Mass spectrometry
Issue Date2011
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
CitationPhysical Review Letters, 2011, v. 106 n. 7 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevLett.106.072002
AbstractWith a sample of (225.2±2.8)×106 J/ψ events registered in the BESIII detector, J/ψ→γπ +π -η ′ is studied using two η ′ decay modes: η ′→π +π -η and η ′→γρ0. The X(1835), which was previously observed by BESII, is confirmed with a statistical significance that is larger than 20σ. In addition, in the π +π -η ′ invariant-mass spectrum, the X(2120) and the X(2370), are observed with statistical significances larger than 7.2σ and 6.4σ, respectively. For the X(1835), the angular distribution of the radiative photon is consistent with expectations for a pseudoscalar. © 2011 American Physical Society.
ISSN0031-9007
2011 Impact Factor: 7.37
2011 SCImago Journal Rankings: 0.633
DOIhttp://dx.doi.org/10.1103/PhysRevLett.106.072002
ISI Accession Number IDWOS:000287392300004
Funding AgencyGrant Number
Ministry of Science and Technology of China
National Natural Science Foundation of China
Chinese Academy of Sciences
Istituto Nazionale di Fisica Nucleare
Russian Foundation for Basic Research
Russian Academy of Science (Siberian branch)
U.S. Department of Energy
National Research Foundation of Korea
Funding Information:

We thank the accelerator group and computer staff of IHEP for their effort in producing beams and processing data. We are grateful for support from our institutes and universities and from these agencies: Ministry of Science and Technology of China, National Natural Science Foundation of China, Chinese Academy of Sciences, Istituto Nazionale di Fisica Nucleare, Russian Foundation for Basic Research, Russian Academy of Science (Siberian branch), U.S. Department of Energy, and National Research Foundation of Korea.

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dc.contributor.authorAchasov, MN
dc.contributor.authorAn, L
dc.contributor.authorAn, Q
dc.contributor.authorAn, ZH
dc.contributor.authorBai, JZ
dc.contributor.authorBaldini, R
dc.contributor.authorBan, Y
dc.contributor.authorBecker, J
dc.contributor.authorBerger, N
dc.contributor.authorBertani, M
dc.contributor.authorBian, JM
dc.contributor.authorBoyko, I
dc.contributor.authorBriere, RA
dc.contributor.authorBytev, V
dc.contributor.authorCai, X
dc.contributor.authorCao, GF
dc.contributor.authorCao, XX
dc.contributor.authorChang, JF
dc.contributor.authorChelkov, G
dc.contributor.authorChen, G
dc.contributor.authorChen, HS
dc.contributor.authorChen, JC
dc.contributor.authorChen, ML
dc.contributor.authorChen, SJ
dc.contributor.authorChen, Y
dc.contributor.authorChen, YB
dc.contributor.authorCheng, HP
dc.contributor.authorChu, YP
dc.contributor.authorCroninHennessy, D
dc.contributor.authorDai, HL
dc.contributor.authorDai, JP
dc.contributor.authorDedovich, D
dc.contributor.authorDeng, ZY
dc.contributor.authorDenysenko, I
dc.contributor.authorDestefanis, M
dc.contributor.authorDing, Y
dc.contributor.authorDong, LY
dc.contributor.authorDong, MY
dc.contributor.authorDu, SX
dc.contributor.authorDuan, MY
dc.contributor.authorFan, RR
dc.contributor.authorFang, J
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dc.contributor.authorFeldbauer, F
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dc.contributor.authorKuehn, W
dc.contributor.authorLange, JS
dc.contributor.authorLeung, JKC
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dc.contributor.authorMao, H
dc.contributor.authorMao, YJ
dc.contributor.authorMao, ZP
dc.contributor.authorMesschendorp, JG
dc.contributor.authorMin, J
dc.contributor.authorMitchell, RE
dc.contributor.authorMo, XH
dc.contributor.authorMotzko, C
dc.contributor.authorMuchnoi, NYu
dc.contributor.authorNefedov, Y
dc.contributor.authorNing, Z
dc.contributor.authorOlsen, SL
dc.contributor.authorOuyang, Q
dc.contributor.authorPacetti, S
dc.contributor.authorPelizaeus, M
dc.contributor.authorPeters, K
dc.contributor.authorPing, JL
dc.contributor.authorPing, RG
dc.contributor.authorPoling, R
dc.contributor.authorPun, CSJ
dc.contributor.authorQi, M
dc.contributor.authorQian, S
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dc.contributor.authorSheng, HY
dc.contributor.authorShepherd, MR
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dc.contributor.authorZhao, HS
dc.contributor.authorZhao, J
dc.contributor.authorZhao, J
dc.contributor.authorZhao, L
dc.contributor.authorZhao, L
dc.contributor.authorZhao, MG
dc.contributor.authorZhao, Q
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dc.contributor.authorZhao, TC
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dc.contributor.authorZhao, YB
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dc.contributor.authorZhao, ZL
dc.contributor.authorZhemchugov, A
dc.contributor.authorZheng, B
dc.contributor.authorZheng, JP
dc.contributor.authorZheng, YH
dc.contributor.authorZheng, ZP
dc.contributor.authorZhong, B
dc.contributor.authorZhong, J
dc.contributor.authorZhong, L
dc.contributor.authorZhou, L
dc.contributor.authorZhou, XK
dc.contributor.authorZhou, XR
dc.contributor.authorZhu, C
dc.contributor.authorZhu, K
dc.contributor.authorZhu, KJ
dc.contributor.authorZhu, SH
dc.contributor.authorZhu, XL
dc.contributor.authorZhu, XW
dc.contributor.authorZhu, YS
dc.contributor.authorZhu, ZA
dc.contributor.authorZhuang, J
dc.contributor.authorZou, BS
dc.contributor.authorZou, JH
dc.contributor.authorZuo, JX
dc.contributor.authorZweber, P
dc.date.accessioned2011-10-28T02:48:31Z
dc.date.available2011-10-28T02:48:31Z
dc.date.issued2011
dc.description.abstractWith a sample of (225.2±2.8)×106 J/ψ events registered in the BESIII detector, J/ψ→γπ +π -η ′ is studied using two η ′ decay modes: η ′→π +π -η and η ′→γρ0. The X(1835), which was previously observed by BESII, is confirmed with a statistical significance that is larger than 20σ. In addition, in the π +π -η ′ invariant-mass spectrum, the X(2120) and the X(2370), are observed with statistical significances larger than 7.2σ and 6.4σ, respectively. For the X(1835), the angular distribution of the radiative photon is consistent with expectations for a pseudoscalar. © 2011 American Physical Society.
dc.description.naturepublished_or_final_version
dc.identifier.citationPhysical Review Letters, 2011, v. 106 n. 7 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevLett.106.072002
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.106.072002
dc.identifier.hkuros196928
dc.identifier.isiWOS:000287392300004
Funding AgencyGrant Number
Ministry of Science and Technology of China
National Natural Science Foundation of China
Chinese Academy of Sciences
Istituto Nazionale di Fisica Nucleare
Russian Foundation for Basic Research
Russian Academy of Science (Siberian branch)
U.S. Department of Energy
National Research Foundation of Korea
Funding Information:

We thank the accelerator group and computer staff of IHEP for their effort in producing beams and processing data. We are grateful for support from our institutes and universities and from these agencies: Ministry of Science and Technology of China, National Natural Science Foundation of China, Chinese Academy of Sciences, Istituto Nazionale di Fisica Nucleare, Russian Foundation for Basic Research, Russian Academy of Science (Siberian branch), U.S. Department of Energy, and National Research Foundation of Korea.

dc.identifier.issn0031-9007
2011 Impact Factor: 7.37
2011 SCImago Journal Rankings: 0.633
dc.identifier.issue7
dc.identifier.openurl
dc.identifier.pmid21405509
dc.identifier.scopuseid_2-s2.0-79951634119
dc.identifier.urihttp://hdl.handle.net/10722/142496
dc.identifier.volume106
dc.languageeng
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
dc.publisher.placeUnited States
dc.relation.ispartofPhysical Review Letters
dc.relation.referencesReferences in Scopus
dc.rightsPhysical Review Letters. Copyright © American Physical Society.
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
dc.subjectDecay mode
dc.subjectInvariant-mass spectra
dc.subjectRadiative photons
dc.subjectStatistical significance
dc.subjectMass spectrometry
dc.titleConfirmation of the X(1835) and observation of the resonances X(2120) and X(2370) in J/ψ→γπ +π -η ′
dc.typeArticle
Author Affiliations
  1. Graduate University of Chinese Academy of Sciences
  2. Universität Bochum
  3. Rijksuniversiteit Groningen
  4. Saint Petersburg Nuclear Physics Institute, Russian Academy of Sciences
  5. Nanjing University
  6. Moskovskij Fiziko-Tehniceskij Institut - Gosudarstvennyj Universitet
  7. Shandong University
  8. University of Minnesota Twin Cities
  9. Hunan University
  10. Lanzhou University
  11. The University of Hong Kong
  12. Zhejiang University
  13. Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
  14. Laboratori Nazionali di Frascati di INFN
  15. Wuhan University
  16. Zhengzhou University
  17. Huazhong Normal University
  18. Guangxi University
  19. China Center of Advanced Science and Technology World Laboratory
  20. University of Science and Technology of China
  21. Carnegie Mellon University
  22. University of Hawaii at Manoa
  23. Nankai University
  24. Università degli Studi di Torino
  25. Sun Yat-Sen University
  26. Nanjing Normal University
  27. Joint Institute for Nuclear Research, Dubna
  28. Liaoning University
  29. Seoul National University
  30. null
  31. Huangshan University
  32. Henan Normal University
  33. University of Tokyo
  34. University of the Punjab Lahore
  35. GSI Helmholtz Centre for Heavy Ion Research GmbH
  36. Peking University
  37. Guangxi Normal University
  38. Tsinghua University
  39. Indiana University
  40. University of Washington Seattle
  41. Institute of High Energy Physics Chinese Academy of Science
  42. Bogolyubov Institute for Theoretical Physics Nasu
  43. Sichuan University
  44. Chinese University of Hong Kong
  45. Shanxi University