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arXiv · hep-lat/9404012

A New Determination of M_b Using Lattice QCD

C. T. H. Davies·K. Hornbostel·A. Langnau·G. P. Lepage·A. Lidsey·C. J. Morningstar·J. Shigemitsu·J. Sloan
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Abstract

Recent results from lattice QCD simulations provide a realistic picture, based upon first principles, of~$Υ$ physics. We combine these results with the experimentally measured mass of the $Υ$~meson to obtain an accurate and reliable value for the $b$-quark's pole mass. We use two different methods, each of which yields a mass consistent with $M_b = 5.0(2)$~GeV. This corresponds to a bare mass of $M_b^0 = 4.0(1)$~GeV in our lattice theory and an $\msbar$~mass of $M_b^\msbar(M_b)=4.0(1)$~GeV. We discuss the implications of this result for the $c$-quark mass. ******************************************************************************* THIS IS THE VERSION WHICH WILL BE PUBLISHED IN PRL. SUBSTANTIAL MATERIAL HAS BEEN ADDED, INCLUDING RESULTS WITH DYNAMICAL FERMIONS AND A CALCULATION OF THE MSBAR MASS. *******************************************************************************

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C. T. H. Davies, K. Hornbostel, A. Langnau, G. P. Lepage, A. Lidsey, C. J. Morningstar, J. Shigemitsu, J. Sloan. 1994-10-06. A New Determination of M_b Using Lattice QCD. https://doi.org/10.1103/physrevlett.73.2654

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