| Calculation of the Mass of X（3872） by the Mandelstam Generalization of the Gell-Mann-Low Method |
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| 引用本文： | 周华彬,吕晓夫.Calculation of the Mass of X（3872） by the Mandelstam Generalization of the Gell-Mann-Low Method[J].理论物理通讯,2014,61(3):359-364. |
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| 作者姓名： | 周华彬 吕晓夫 |
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| 作者单位： | [1]School of Physics, Sichuan University, Chengdu 610065, China [2]Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100190, China [3]CCAST （World Laboratory）, P.O. Box 8730, Beijing 100080, China |
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| 基金项目： | Supported in part by the National Natural Science Foundation of China under Grant No.10335012;the National Key Basic Research Program and Cross Science of China under Grant No.90503011 |
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| 摘 要： | On the basis of assuming that the narrow state X（3872） is a molecule state consisting of D0 and D＊0, we apply the Mandelstam generalization of the Ge11-Mann-Low method to calculate the matrix element of quark current between the heavy meson states described by Bether-Salpeter wave function. In calculation of the matrix element of quark current the operator product expansion is used in order to include the nonperturbative contribution of the vacuum condensates. In this scheme we calculate the mass of X（3872）. We believe that this scheme is closer to QCD than the previous work.
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| 关 键 词： | 计算 质量 盖尔曼 分子状态 矩阵元素 扩展使用 真空凝聚 塔 |
| 收稿时间： | 2013-04-07 |
Calculation of the Mass of X(3872) by the Mandelstam Generalization of the Gell-Mann-Low Method |
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| ZHOU Hua-Bin,L&#,Xiao-Fu.Calculation of the Mass of X(3872) by the Mandelstam Generalization of the Gell-Mann-Low Method[J].Communications in Theoretical Physics,2014,61(3):359-364. |
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| Authors: | ZHOU Hua-Bin L&# Xiao-Fu |
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| Affiliation: | 1. School of Physics, Sichuan University, Chengdu 610065, China;
2. Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100190, China;
3. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China |
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| Abstract: | On the basis of assuming that the narrow state X(3872) is a molecule state consisting of D0 and D*0, we apply the Mandelstam generalization of the Gell-Mann-Low method to calculate the matrix element of quark current between the heavy meson states described by Bether-Salpeter wave function. In calculation of the matrix element of quark current the operator product expansion is used in order to include the nonperturbative contribution of the vacuum condensates. In this scheme we calculate the mass of X(3872). We believe that this scheme is closer to QCD than the previous work. |
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| Keywords: | the Mandelstam generalization of the Gell-Mann Low method Bether-Salpeter wave function OPE vacuum condensates |
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