Chinese Physics C > 2004, Vol. 28 > Issue(10): 1021-1025

Calculation and Simulation for the Initial State Radiation Correction in e+e-→ωπ0

Institute of High Energy Physics,CAS,Beijing 100039,China2 School of Physics and Microelectronics,Shandong University,Ji'nan 250100,China

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Abstract：
The differential cross section of e+e-→ωπ0 and the decay rate of ω→π+π-π0 are derived, and a simulation program is coded for the generator of e+e-→ωπ0 taking account of initial state radiative correction with G.Bonneau and F.Martin's formulations. The consistencies of various distributions between data, MC and theory expectation for e+e-→ωπ0 process prove the correctness of the derived formulae and the simulations.

References

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. Bonneau G, Martin F. Nucl. Phys. , 1971, B27: 381-3972. HU Hai..Ming et al . HEP NP, 2001, 25: 701-709(in Chinese)3. GAO C S. Group Theory and Its Appl ication in Part icle Physics, Beijing: Higher Education Press, 1992. 294(in Chinese)(高崇寿著. 群论及其在粒子物理学中的应用. 北京: 高等教育出版社, 1992. 294)4. ZHU Y S. Probability and Statistics in Experimental Physics. Beijing: Science Press, 1991. 543(in Chinese)(朱永生著. 实验物理中的概率和统计. 北京: 科学出版社, 1991, 543)5. Kopke L, Wermes N. J/Ψ Decays. Geneva: CERN, 1988. 486. Bisello D et al. Nucl. Phys., 1991, B21( Proc. Suppl. ): 1117. Akhmetshin R R et al. Phys. Lett., 1999, B466: 392-4028. Victor Chernyak. hep-ph/9906387, Mar., 19999. Gérard J M, Castro G Lpez. Phys. Lett., 1998, B425: 365

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MA Lian-Liang, WANG Ping, ZHU Yong-Sheng and ZHANG Xue-Yao. Calculation and Simulation for the Initial State Radiation Correction in e+e-→ωπ0[J]. Chinese Physics C, 2004, 28(10): 1021-1025.

MA Lian-Liang, WANG Ping, ZHU Yong-Sheng and ZHANG Xue-Yao. Calculation and Simulation for the Initial State Radiation Correction in e+e-→ωπ0[J]. Chinese Physics C, 2004, 28(10): 1021-1025. shu

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Received: 2004-04-19
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Calculation and Simulation for the Initial State Radiation Correction in e+e-→ωπ0

Corresponding author:MA Lian-Liang,

Institute of High Energy Physics,CAS,Beijing 100039,China2 School of Physics and Microelectronics,Shandong University,Ji'nan 250100,China

Received Date:2004-04-19
Accepted Date:1900-01-01
Available Online:2004-10-05

Abstract:The differential cross section of e+e-→ωπ0 and the decay rate of ω→π+π-π0 are derived, and a simulation program is coded for the generator of e+e-→ωπ0 taking account of initial state radiative correction with G.Bonneau and F.Martin's formulations. The consistencies of various distributions between data, MC and theory expectation for e+e-→ωπ0 process prove the correctness of the derived formulae and the simulations.