| THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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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
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| Cite this article: |
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YANG Rui-Ling, PING Rong-Gang, CHEN Hong 2014 Chin. Phys. Lett. 31 061301 |
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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.
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Published: 26 May 2014
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| PACS: |
13.25.Gv
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(Decays of J/ψ, Υ, and other quarkonia)
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13.66.Bc
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(Hadron production in e?e+ interactions)
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14.65.Dw
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(Charmed quarks)
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