Tuning and Validation of the Lundcharm Model with J/ψ Decays

Using J/ψ decays collected with the BES Ⅲ detector, Lundcharm model parameters are optimized with J/ψlight 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 inclusi...

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Bibliographic Details
Published inChinese physics letters Vol. 31; no. 6; pp. 55 - 58
Main Author 杨蕊玲 平荣刚 陈洪
Format Journal Article
LanguageEnglish
Published 01.06.2014
Subjects
响应函数
型号
强子衰变
最佳工艺参数
模型参数
调整
轨道分布
验证
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/31/6/061301

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Summary:Using J/ψ decays collected with the BES Ⅲ detector, Lundcharm model parameters are optimized with J/ψlight 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.
Bibliography:YANG Rui-Ling, PING Rong-Gang, CHEN Hong（ 1School of Physical Science and Technology, Southwest University, Chongqing 400715 2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049）
11-1959/O4
Using J/ψ decays collected with the BES Ⅲ detector, Lundcharm model parameters are optimized with J/ψlight 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.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/6/061301