arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.00161hep-ph
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用Dyson-Schwinger方程和Bethe-Salpeter方程计算$B_c$介子谱

$B_c$ Meson Spectrum Via Dyson-Schwinger Equation and Bethe-Salpeter Equation Approach

Muyang Chen, Lei Chang, Yu-xin Liu

摘要:

我们用$J^P = 0^-,\,1^-,\,0^+,\,1^+,\,2^+$预言了低能级$B_c$介子的质量,采用了一种味相关的相互作用模式,它成功地统一了轻、重-轻和重介子的描述,也适用于径向激发的重介子.误差得到了严格控制。在扣除RL近似的误差后,我们的预言与lQCD和夸克模型的结果一致,有力地支持了味依赖相互作用模式的合理性.我们的预言为$B_c$介子的实验研究提供了有意义的指导。

英文摘要:

We predict the masses of the lowlying $B_c$ mesons with $J^P = 0^-,\,1^-,\,0^+,\,1^+,\,2^+$, using a flavor dependent interaction pattern which gives an unified successful description of the light, heavy-light and heavy mesons and is also appliable to the radial excited heavy mesons. The errors are controlled carefully. With the errors from the RL approximation subduced, our predictions are consistent with the lQCD and quark model results, which supports strongly that the flavor dependent interaction pattern is reasonable. Our predictions provide significant guides to the experiment search of the $B_c$ mesons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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