Tuning and Validation of the Lundcharm Model with J/ψ Decays
YANG Rui-Ling1, PING Rong-Gang2**, CHEN Hong1
1School of Physical Science and Technology, Southwest University, Chongqing 400715 2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
Abstract：Using decays collected with the BES III detector, Lundcharm model parameters are optimized with J/ψ light hadron decays. The dependence of the response function on model parameters is approximated up to the quadratic term, and the model parameters are optimized by simultaneously fitting J/ψ inclusive charged track distributions and event shapes. The Monte Carlo simulations show that optimal parameters yield satisfactory MC distributions as compared to both the J/ψ and ψ(2S) data distributions. These optimal values are suggested for the Lundcharm model to produce J/ψ and ψ(2S) decays to light hadrons.
. [J]. 中国物理快报, 2014, 31(06): 61301-061301.
YANG Rui-Ling, PING Rong-Gang, CHEN Hong. Tuning and Validation of the Lundcharm Model with J/ψ Decays. Chin. Phys. Lett., 2014, 31(06): 61301-061301.
2014, Vol. 31 
