标题： 重夸克有效理论中的残差质量项 显示英文标题

标题： The Residual Mass Term in the Heavy Quark Effective Theory

摘要： 我们在存在剩余质量项的情况下重新表述了重夸克有效理论，而在之前的分析中该剩余质量项被取为零。 虽然这种约定是允许的，但包含一个剩余质量使我们能够解决定义有效理论的展开参数选择中的潜在歧义。 我们证明，在质量展开的次主导阶，有效理论中计算的物理量不依赖于定义该理论的展开参数。 显示英文摘要

摘要： We reformulate the heavy quark effective theory in the presence of a residual mass term, which has been taken to vanish in previous analyses. While such a convention is permitted, the inclusion of a residual mass allows us to resolve a potential ambiguity in the choice of the expansion parameter which defines the effective theory. We show to subleading order in the mass expansion that physical quantities computed in the effective theory do not depend on the expansion parameter.