Applications of LUND Area Law Generator in R Measurement

HU Hai-Ming; TAI An; HUANG Guang-Shun; QI Xiang-Rong; CAI Xiao; CHEN Jiang-Chuan; DAI Yu-Mei; WANG Zhi-Yong; XUE Sheng-Tian; YAN Wen-Biao; ZHOU Li; ZHAO Zheng-Guo

Chinese Physics C> 2001, Vol. 25> Issue(11) : 1035-1043

Applications of LUND Area Law Generator in R Measurement

Institute of High Energy Physics,CAS,Beijing 100039,China2 Department of Physics and Anstronomy,University of California,Los Angeles,CA90095,USA3 China Center of Andvanced Science and Technology,Beijing 100080,China4 Fermi National Acceleration Laboratory,PO Box 500, Batavia,IL60510,USA5 Department of Physics,Liao Ning University,Shenyang 110036,China

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Abstract：
The well known Monte Carlo simulation package JETSET is developed to simulate the hadronic final states in e⁺e^－ collision with center-of-mass energy E_cm10GeV,but not suitable for few GeV energy region. We develop a Monte Carlo program, LUARLW,which can well simulate two-body up to six-body hadronic final states at BEPC energy region. In LUARLW,the effects of all gluonic emissions are neglected. The LUARLW produces more than 14 distributions,which agree with the BES data very well. This package is used for estimating hadronic events detection efficiencies in the measurements of total cross section of hadron production at BES between 2—5 GeV.

References

[1]

. BAIJ Z et al.Phys.Rev.Lett.,2000,84:5942. HUANG GuangShun.The R Values Measuremente Between2.6—5GeV .ph.D .Thesis,IHEP ,1999(in Chinese)(黄光顺.2.6—5GeV能区R值测量.博士论文,中国科学院高能物理研究所,1999) 3. Webber B R .Nucl.Phys.,1984,B238:492 4. Andersson B .The Lund Model,Cambridge University Press,Cambridge,1998 5. Andersson B ,HUH .hep ph99102856. Andersson B et al.Phys.Rep.,1983,97:317. Eichten E et al.Phys.Rev.,1980,D21:203—233

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HU Hai-Ming, TAI An, HUANG Guang-Shun, QI Xiang-Rong, CAI Xiao, CHEN Jiang-Chuan, DAI Yu-Mei, WANG Zhi-Yong, XUE Sheng-Tian, YAN Wen-Biao, ZHOU Li and ZHAO Zheng-Guo. Applications of LUND Area Law Generator in R Measurement[J]. Chinese Physics C, 2001, 25(11): 1035-1043.

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Received: 2001-03-09
Revised: 1900-01-01

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