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Chinese Physics C> 2010, Vol. 34> Issue(6) : 848-854 DOI: 10.1088/1674-1137/34/6/038

Study a0(980)}-f0(980) mixing in charmonium decays

  • In this proceeding, we propose to directly measure the a00(980)-f0(980) mixing in J/ψ→φ f0(980)→φa00(980) and χc1→π0φa00(980)→π0f0(980) with the upgraded Beijing Electron Positron Collider(BEPCII) with BESIII detector. We show that a narrow peak of about 8 MeV will be produced by the φa00(980)-f0(980) mixing, and the predominant feature makes it standing out from the background contributions. The predicted branching ratios for these two reactions are both expected to be about O(10－6), which is unambiguously accessible with 109 J/ψ and 3×108 χc1 at BESⅢ.

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WU Jia-Jun, ZHAO Qiang and ZOU Bing-Song. Study a0(980)}-f0(980) mixing in charmonium decays[J]. Chinese Physics C, 2010, 34(6): 848-854. doi: 10.1088/1674-1137/34/6/038
WU Jia-Jun, ZHAO Qiang and ZOU Bing-Song. Study a0(980)}-f0(980) mixing in charmonium decays[J]. Chinese Physics C, 2010, 34(6): 848-854.  doi: 10.1088/1674-1137/34/6/038 shu
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Received: 2010-01-26
Revised: 1900-01-01
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Study a0(980)}-f0(980) mixing in charmonium decays

    Corresponding author: ZHAO Qiang,
  • Received Date: 2010-01-26
  • Accepted Date: 1900-01-01
  • Available Online: 2010-06-05

Abstract: 

In this proceeding, we propose to directly measure the a00(980)-f0(980) mixing in J/ψ→φ f0(980)→φa00(980) and χc1→π0φa00(980)→π0f0(980) with the upgraded Beijing Electron Positron Collider(BEPCII) with BESIII detector. We show that a narrow peak of about 8 MeV will be produced by the φa00(980)-f0(980) mixing, and the predominant feature makes it standing out from the background contributions. The predicted branching ratios for these two reactions are both expected to be about O(10－6), which is unambiguously accessible with 109 J/ψ and 3×108 χc1 at BESⅢ.

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