Resorting to Hessian matrix, the analytical formula is obtained to determine the optimal luminosity proportion for the experiment of τ mass scan. Comparison of numerical results indicate the consistency between the p...Resorting to Hessian matrix, the analytical formula is obtained to determine the optimal luminosity proportion for the experiment of τ mass scan. Comparison of numerical results indicate the consistency between the present analytical evaluation and the previous computation based on the sampling technique.展开更多
To achieve a high precision τ mass measurement at the high luminosity experiment BESIII,Monte Carlo simulation and sampling technique are utilized to simulate various data taking cases for single and multiparameter f...To achieve a high precision τ mass measurement at the high luminosity experiment BESIII,Monte Carlo simulation and sampling technique are utilized to simulate various data taking cases for single and multiparameter fits by virtue of which the optimal scheme is determined. The optimized proportion of luminosity distributed at selected points and the relation between precision and luminosity are obtained. In addition,the optimization of the fit scheme is confirmed by scrutinizing a variety of fit possibilities.展开更多
基金Supported by National Natural Science Foundation of China (10775412,10825524)Instrument Developing Project of the Chinese Academy of Sciences (YZ200713)+1 种基金Major State Basic Research Development Program (2009CB825200,2009CB825206)Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29)
文摘Resorting to Hessian matrix, the analytical formula is obtained to determine the optimal luminosity proportion for the experiment of τ mass scan. Comparison of numerical results indicate the consistency between the present analytical evaluation and the previous computation based on the sampling technique.
基金Supported by National Natural Science Foundation of China (10491303, 10775142, 10825524)Instrument Developing Project of Chinese Academy of Sciences (YZ200713)+1 种基金Major State Basic Research Development Program (2009CB825206)Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-YW-N29)
文摘To achieve a high precision τ mass measurement at the high luminosity experiment BESIII,Monte Carlo simulation and sampling technique are utilized to simulate various data taking cases for single and multiparameter fits by virtue of which the optimal scheme is determined. The optimized proportion of luminosity distributed at selected points and the relation between precision and luminosity are obtained. In addition,the optimization of the fit scheme is confirmed by scrutinizing a variety of fit possibilities.
