Bottom quark mass and QCD duality

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• 作者：Bordes ; J. ; Peñ ; arrocha ; J. ; Schilcher ; K.
• 关键词：12.38.Bx ; 12.38.Lg
• 刊名：Physics Letters B
• 出版年：2003
• 期刊代码：58_03702693
• 类别：ph
• 出版时间：June 5, 2003
• 卷：562
• 期：1-2
• 页码：81-86
• 文件大小：130 K

摘要

The mass of the bottom quark is analyzed in the context of QCD finite energy sum rules. In contrast to the conventional approach, we use a large momentum expansion of the QCD correlator including terms to order α_s²(m_b²/q²)⁶ with the upsilon resonances from e⁺e⁻ annihilation data as main input. A stable result m_b(m_b)=(4.19±0.05) GeV for the bottom quark mass is obtained. This result agrees with the independent calculations based on the inverse moment analysis.