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Search for [Formula presented] production in [Formula presented] annihilations at 4.03 GeV

  • Author(s): Bai, JZ
  • Bian, JG
  • Blum, I
  • Chai, ZW
  • Chen, GP
  • Chen, HF
  • Chen, J
  • Chen, JC
  • Chen, Y
  • Chen, YB
  • Chen, YQ
  • Cheng, BS
  • Cui, XZ
  • Ding, HL
  • Ding, LY
  • Dong, LY
  • Du, ZZ
  • Dunwoodie, W
  • Feng, S
  • Gao, CS
  • Gao, ML
  • Gao, SQ
  • Gratton, P
  • Gu, JH
  • Gu, SD
  • Gu, WX
  • Gu, YF
  • Guo, YN
  • Han, SW
  • Han, Y
  • Harris, FA
  • He, J
  • He, JT
  • He, M
  • Hitlin, DG
  • Hu, GY
  • Hu, HM
  • Hu, JL
  • Hu, QH
  • Hu, T
  • Hu, XQ
  • Huang, JD
  • Huang, YZ
  • Izen, JM
  • Jiang, CH
  • Jin, Y
  • Ke, ZJ
  • Kelsey, MH
  • Kim, BK
  • Kong, D
  • Lai, YF
  • Lang, PF
  • Lankford, A
  • Li, CG
  • Li, D
  • Li, HB
  • Li, J
  • Li, PQ
  • Li, RB
  • Li, W
  • Li, WD
  • Li, WG
  • Li, XH
  • Li, XN
  • Liu, HM
  • Liu, J
  • Liu, JH
  • Liu, RG
  • Liu, Y
  • Lou, XC
  • Lowery, B
  • Lu, F
  • Lu, JG
  • Lu, JY
  • Lu, LC
  • Luo, CH
  • Ma, AM
  • Ma, EC
  • Ma, JM
  • Malchow, R
  • Mandelkern, M
  • Mao, HS
  • Mao, ZP
  • Meng, XC
  • Nie, J
  • Olsen, SL
  • Oyang, J
  • Paluselli, D
  • Pan, LJ
  • Panetta, J
  • Porter, F
  • Qi, ND
  • Qi, XR
  • Qian, CD
  • Qiu, JF
  • Qu, YH
  • Que, YK
  • Rong, G
  • Schernau, M
  • Schmid, B
  • et al.
Abstract

A search is performed for the production of the (Formula presented) in (Formula presented) annihilation at a center-of-mass energy of 4.03 GeV using the BES detector operated at the Beijing Electron Positron Collider (BEPC). The kinematic features of the reconstructed (Formula presented) signal are consistent with its being produced only in association with an energetic photon resulting from initial state radiation (ISR). Limits are placed on (Formula presented) production from the decay of unknown charmonia or metastable hybrids that might be produced in (Formula presented) annihilations at 4.03 GeV. Under the assumption that the observed cross section for (Formula presented) production is due entirely to ISR, the partial width (Formula presented) of the (Formula presented) is measured to be (Formula presented). © 1998 The American Physical Society.

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