...
首页> 外文期刊>Physical review, C >Gluo-dissociation of heavy quarkonium in the quark-gluon plasma reexamined
【24h】

Gluo-dissociation of heavy quarkonium in the quark-gluon plasma reexamined

机译:夸克 - 胶血管血浆中重Quarkonium的Gluo - 解剖复原

获取原文
获取原文并翻译 | 示例
           

摘要

Using an effective Hamiltonian derived from the QCD multipole expansion, we calculate the cross sections of gluo-dissociation of heavy quarkonia in the quark-gluon plasma, by including both the chromo-electric dipole (E1) and the chromo-magnetic dipole (M1) transition mechanisms. While the former allows us to reproduce the results from operator-product-expansion calculations in the Coulomb approximation, the latter as a novel contribution is shown to be significant at low energies close to the threshold. Using thus obtained cross sections, we further carry out a full calculation of the gluo-dissociation rates for various charmonia and bottomonia within a nonrelativistic in-medium potential model. The M1 contribution turns out to be most prominent for the J/. and accounts for similar to 10%-25% of the total (E1 + M1) dissociation rate at temperatures close to the transition temperature.
机译:使用QCD多极扩展的有效汉密尔顿人来计算Quark-Gluon等离子体中重Quarkonia的杂交曲线释放的横截面,包括铬 - 电偶极子(E1)和铬磁性偶极子(M1) 过渡机制。 虽然前者允许我们在库仑近似下的操作员 - 产品扩展计算中再现结果,但后者作为新颖贡献显示在接近阈值的低能量下是显着的。 使用由此获得的横截面,我们进一步进行了在非筛中中势模型中的各种乍得和底层的甘油解离速率的全部计算。 M1贡献结果对j /最重要的是最突出的。 并且占总体(E1 + M1)离解率的10%-25%在接近过渡温度的温度下。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号