Applications of LUND area law generator in R measurement

The well-known Monte Carlo simulation package JETSET is developed to simula te the hadronic final states in e(+) e(-) collision with center-of-mass ene rgy E-cm greater than or similar to 10GeV, but not suitable for few GeV ene rgy region. We develop a Monte Carlo program, LUARLW, which can well simula te 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 produ ces more than 14 distributions, which agree with the BES data very well. Th is package is used for estimating hadronic events detection efficiencies in the measurements of total cross section of hadron production at, BES betwe en 2-5 GeV.