High Energy Physics - Phenomenology
[Submitted on 26 Feb 2018
]
Title: Reparametrization Invariance and Partial Re-Summations of the Heavy Quark Expansion
Title: 重夸克展开的参数化不变性和部分重求和
Abstract: We extend existing work on reparametrization invariance (RPI) of the heavy-quark expansion. We discuss the total rates of inclusive processes and obtain results which have a manifest RPI and can be expressed through matrix elements of operators and states defined in full QCD. This approach leads to a partial re-summation of higher-order terms in the heavy-quark expansion and has the advantage that the number of independent parameters is reduced.
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