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Tuning and validation of hadronic event generator for R value measurements in the tau-charm region
Ping RG(平荣刚); Xiong XA(熊习安); Li YT(李应天); Zhou XY(周兴玉); Zhang BX(张丙新); Yan WB(鄢文标); Hu HM(胡海明); Ping, RG; Xiong, XA; Xia, L; Gao, Z; Li, YT; Zhou, XY; Zhang, BX; Zheng, B; Yan, WB; Hu, HM; Huang, GS
2016
发表期刊CHINESE PHYSICS C
卷号40期号:11
通讯作者平荣刚
文章类型Article
摘要To measure the R value in an energy scan experiment with e(+)e(-) collisions, precise calculation of initial state radiation is required in the event generators. We present an event generator for this consideration, which incorporates initial state radiation effects up to second order accuracy. The radiative correction factor is calculated using the totally hadronic Born cross section. The measured exclusive processes are generated according to their cross sections, while the unknown processes are generated using the LUND Area Law model, and its parameters are tuned with data collected at root s = 3.65 GeV. The optimized values are validated with data in the range root s = 2.2324-3.671 GeV. These optimized parameters are universally valid for event generation below the DD threshold.
关键词event generator R value
DOI10.1088/1674-1137/40/11/113002
关键词[WOS]HIGH-ENERGY ; VACUUM POLARIZATION ; PRECISION ; ANNIHILATION ; PHYSICS ; QCD ; FRAGMENTATION ; BESIII ; MODELS ; SYSTEM
语种英语
WOS记录号WOS:000389144400003
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/261027
专题实验物理中心
作者单位中国科学院高能物理研究所
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Ping RG,Xiong XA,Li YT,et al. Tuning and validation of hadronic event generator for R value measurements in the tau-charm region[J]. CHINESE PHYSICS C,2016,40(11).
APA 平荣刚.,熊习安.,李应天.,周兴玉.,张丙新.,...&Huang, GS.(2016).Tuning and validation of hadronic event generator for R value measurements in the tau-charm region.CHINESE PHYSICS C,40(11).
MLA 平荣刚,et al."Tuning and validation of hadronic event generator for R value measurements in the tau-charm region".CHINESE PHYSICS C 40.11(2016).
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