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arXiv 0810.1843hep-lathep-exhep-ph
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扭曲质量格点量子色动力学的静态光介子谱

The static-light meson spectrum from twisted mass lattice QCD

ETM Collaboration, Karl Jansen, Chris Michael, Andrea Shindler, Marc Wagner

摘要:

用Wilson扭质量格点量子色动力学计算了海夸克N_f = 2味的静态光介子谱。我们考虑了轻夸克质量对应于300 MeV <mPS < 600 MeV的五种不同值,给出了角动量j = 1/2,j = 3/2和j = 5/2以及宇称P = +和P = -的结果。我们将结果外推到物理夸克质量,并对B和B_s介子的能谱作了预言。

英文摘要:

We compute the static-light meson spectrum with N_f = 2 flavours of sea quarks using Wilson twisted mass lattice QCD. We consider five different values for the light quark mass corresponding to 300 MeV < m_PS < 600 MeV and we present results for angular momentum j = 1/2, j = 3/2 and j = 5/2 and for parity P = + and P = -. We extrapolate our results to physical quark masses and make predictions regarding the spectrum of B and B_s 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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