Bottom-quark mass from finite energy QCD sum rules

Details Bottom-quark mass from finite energy QCD sum rules Bottom-quark mass from finite energy QCD sum rules

2011-11-24

arxiv.org/abs/1111.5742v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

An appendix has been added with explicit expressions for the polynomials used in Table I

Scientific paper

Finite energy QCD sum rules involving both inverse and positive moment integration kernels are employed to determine the bottom quark mass. The result obtained in the $\bar{\text {MS}}$ scheme at a reference scale of $10\, {GeV}$ is $\bar{m}_b(10\,\text{GeV})= 3623(9)\,\text{MeV}$. This value translates into a scale invariant mass $\bar{m}_b(\bar{m}_b) = 4171 (9)\, {MeV}$. This result has the lowest total uncertainty of any method, and is less sensitive to a number of systematic uncertainties that affect other QCD sum rule determinations.

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