Skip to main content
eScholarship
Open Access Publications from the University of California

Study of the P-wave Charmonium state χcJ in ψ(2S) decays

  • 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
  • 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
  • Shao, YY
  • et al.
Abstract

The processes ψ(2S) → I π+ π−, γK+ K−, and γpp¯ have been studied using a sample of 3.79 × 106 ψ(2S) decays. We determine the total width of the χc0 to be γtotχc0 = 14.3 ± 2.0 ± 3.0 MeV. We present the first measurement of the branching fraction B(χc0 → pp¯) = (15.9 ± 4.3 ± 5.3) × 10−5, where the first error is statistical and the second one is systematic. Branching fractions of χc0, 2 → π+ π− and K+ K− are also reported. © 1998 American Physical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View