| Autor: |
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 |
| Jazyk: |
angličtina |
| Rok vydání: |
1998 |
| Zdroj: |
Bai, JZ; Bian, JG; Blum, I; Chai, ZW; Chen, GP; Chen, HF; et al.(1998). Study of the P-wave Charmonium state χcJ in ψ(2S) decays. Physical Review Letters, 81(15), 3091-3095. doi: 10.1103/PhysRevLett.81.3091. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/2jw9b937 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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