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arXiv 0710.5283hep-lat
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用轻畴壁费米子模拟B介子混合:微扰重整化和基态简并

The Static Approximation to B Meson Mixing using Light Domain-Wall Fermions: Perturbative Renormalization and Ground State Degeneracies

Norman H. Christ, Thomas T. Dumitrescu, Taku Izubuchi, Oleg Loktik

摘要:

我们讨论了当前RBC-UKQCD计算的理论输入$f_{B_{d, s}}$和$B_{B_{d, s}}$使用涂抹静态重夸克传播子,轻域壁夸克和岩崎规范作用。我们提出了完整的单圈,平均场改进匹配的重轻电流和四费米子晶格运营商的静态连续理论重整化在$\bar{\text{MS}}$(NDR)。在静态计算中存在的大退化的地址,并提取$f_B$和$B_B$只使用盒源的方法进行了描述,对未来的计算的影响进行了讨论。

英文摘要:

We discuss the theoretical input into the current RBC-UKQCD calculation of $f_{B_{d, s}}$ and $B_{B_{d, s}}$ using a smeared static heavy quark propagator, light domain-wall quarks and the Iwasaki gauge action. We present the complete one-loop, mean-field improved matching of heavy-light current and four-fermion lattice operators onto the static continuum theory renormalized in $\bar{\text{MS}}$(NDR). The large degeneracies present in a static calculation are addressed, and a method for extracting $f_B$ and $B_B$ using only box sources is described; implications for future calculations are discussed.

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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