Hadron Spectroscopy and Charmonium Decays from BES and CLEOc

  • Recent results from BES and CLEOc experiments on hadron spectroscopy and charmonium decays using J/ψ, ψ′ and ψ′′ data samples collected in e+e annihilation are reviewed,including the study of the scalar particles in J/ψ radiative and hadronic decays, as well as in ψ′ and χc0 hadronic decays, and the study of the “ρπ puzzle”in J/ψ,ψ′, and ψ′′ decays. The new results on the light scalars and the new information on the hadronic decays of the ortho-charmonium states shed light on the understanding of QCD.
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  • [1] . BAI J Z et al(BES Collaboration). Nucl. Instrum. Methods,1994, A344: 319; 2001, A458: 6272. CLEO-c Collaboration. CLEO-c and CESR-c: A New Frontier of Weak and Strong Interactions: CLNS 01/17423. ABLIKIM M et al(BES Collaboration). Phys. Lett., 2004,B598: 1494. ABLIKIM M et al(BES Collaboration). Phys. Lett., 2004,B603: 1385. ABLIKIM M et al(BES Collaboration). Phys. Lett., 2004,B607: 2436. BAI J Z et al(BES Collaboration). Phys. Rev., 2003, D68:0520037. Flatt'e S M. Phys. Lett., 1976, B63: 2248. Eidelman S et al(Particle Data Group). Phys. Lett., 2004,B592: 19. Roca L et al. Nucl. Phys., 2004, A744: 12710. Bugg D. hep-ex/0510021 Talk at the 11th International Conference on Hadron Spectroscopy. Aug. 21-26, 2005, Riode Janeiro, Brazil11. Close F, ZHAO Q. Phys. Rev., 2005, D71, 09402212. ZHAO Q, ZOU B S, MA Z B. Phys. Lett., 2005, B631: 2213. ZHU Y S (BES Collaboration). Talk at the 11th International Conference on Hadron Spectroscopy. Aug. 21-26,2005, Rio de Janeiro, Brazil14. ABLIKIM M et al(BES Collaboration). Phys. Rev., 2005,D72: 09200215. ZHAO Q. Phys. Rev., 2005, D72: 07400116. Appelquist T, Politzer H D. Phys. Rev. Lett., 1975, 34: 43;De R'ujula A, Glashow S L. Phys. Rev. Lett., 1975, 34: 4617. Franklin M E B et al(Mark / Collaboration). Phys. Rev.Lett., 1983, 51: 96318. BAI J Z et al(BES Collaboration). Phys. Rev., 2004, D69:072001; Phys. Rev. Lett., 2004, 92: 052001; ABLIKIM Met al(BES Collaboration). Phys. Rev., 2004, D70: 112007;Phys. Rev., 2004, D70: 112003; Phys. Lett., 2005, B614:3719. Adam N E et al(CLEO Collaboration). Phys. Rev. Lett.,2005, 94: 01200520. BAI J Z et al(BES Collaboration). Phys. Rev., 2004, D70:01200521. Aubert B et al(BABAR Collaboration). Phys. Rev., 2004,D70: 07200422. MARK-III Collaboration, CHEN L, Dunwoodie W M. In Proceedings of Hadron 91 Conference. College Park, Mary-land, 1991. 100, SLAC-PUB-5674 (1991)23. ABLIKIM M et al(BES Collaboration). Phys. Lett., 2005,B619: 24724. WANG P, MO X H, YUAN C Z. Phys. Lett., 2003, B574:4125. ABLIKIM M et al(BES Collaboration). Phys. Rev., 2005,D72: 07200726. Adams G S et al(CLEO Collaboration). hep-ex/050901127. WANG P, YUAN C Z, MO X H. Phys. Rev., 2004, D69:05750228. WANG P, MO X H, YUAN C Z. hep-ph/051232929. ABLIKIM M et al(BES Collaboration). Phys. Rev., 2005,D71: 072006; Briere R A et al(CLEO Collaboration).Phys. Rev. Lett., 2005, 95: 062001; Pedlar T K et al(CLEO Collaboration). Phys. Rev., 2005, D72: 051108(R); MO XH (BES Collaboration). Talk at the 11th International Con-ference on Hadron Spectroscopy. Aug. 21-26, 2005, Riode Janeiro, Brazil30. HUANG G S et al(CLEO Collaboration). hep-ex/050904631. Rosner J L. Phys. Rev., 2001, D64: 09400232. Rosner J L. hep-ph/040519633. Voloshin M. Phys. Rev., 2005, D71: 11400334. Artoisenet P, Gerard J M, Weyers J. Phys. Lett., 2005,B628: 211; G'erard J M, Weyers J. Phys. Lett., 1999,B462: 32435. Seth K K. Talk at the 11th International Conference on Hadron Spectroscopy. Aug. 21-26, 2005, Rio de Janeiro,Brazil
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YUAN Chang-Zheng. Hadron Spectroscopy and Charmonium Decays from BES and CLEOc[J]. Chinese Physics C, 2006, 30(6): 488-496.
YUAN Chang-Zheng. Hadron Spectroscopy and Charmonium Decays from BES and CLEOc[J]. Chinese Physics C, 2006, 30(6): 488-496. shu
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Received: 2006-01-03
Revised: 2006-01-12
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Hadron Spectroscopy and Charmonium Decays from BES and CLEOc

    Corresponding author: YUAN Chang-Zheng,
  • Institute of High Energy Physics, CAS, Beijing 100049, China

Abstract: Recent results from BES and CLEOc experiments on hadron spectroscopy and charmonium decays using J/ψ, ψ′ and ψ′′ data samples collected in e+e annihilation are reviewed,including the study of the scalar particles in J/ψ radiative and hadronic decays, as well as in ψ′ and χc0 hadronic decays, and the study of the “ρπ puzzle”in J/ψ,ψ′, and ψ′′ decays. The new results on the light scalars and the new information on the hadronic decays of the ortho-charmonium states shed light on the understanding of QCD.

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