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arXiv 1505.04410hep-lathep-exhep-ph
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底介子和B介子光谱的自由形式涂抹

Free-form smearing for bottomonium and B meson spectroscopy

Mark Wurtz, Randy Lewis, R. M. Woloshyn

摘要:

为了从格点量子色动力学中获得高质量的结果,重要的是使用能为感兴趣的量产生良好信号的算子。自由形式涂抹是一个强大的工具,有助于实现这一目标。目前的工作介绍了一种新的实现自由形式的涂抹,保持其实用性,并大大减少其计算时间。对$B$、$B_s$、$B_c$和底鎓介子的质谱计算表明了该方法的有效性。结果与其他格点量子色动力学的研究和实验数据进行了比较。目前的工作包括对其中一些介子的首次格点量子色动力学探索。

英文摘要:

To obtain high-quality results from lattice QCD, it is important to use operators that produce good signals for the quantities of interest. Free-form smearing is a powerful tool that helps to accomplish that goal. The present work introduces a new implementation of free-form smearing that maintains its usefulness and reduces its computational time dramatically. Applications to the mass spectrum of $B$, $B_s$, $B_c$ and bottomonium mesons show the effectiveness of the method. Results are compared with other lattice QCD studies and with experimental data where available. The present work includes the first lattice QCD exploration for some of these 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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