Uncertainties in the MS-bar bottom quark mass from relativistic sum rules
Dec, 200211 pages
Published in:
- Phys.Lett.B 554 (2003) 133-140
e-Print:
- hep-ph/0212297 [hep-ph]
PDG: -QUARK MASS
Report number:
- MPI-PHT-2002-86
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Abstract: (Elsevier)
A detailed compilation of uncertainties in the MS bottom quark mass m ̄ b ( m ̄ b ) obtained from low- n spectral sum rules at order α s 2 is given including charm mass effects and secondary b b ̄ production. The experimental continuum region above 11.1 GeV is treated conservatively. An inconsistency of the PDG averages for the electronic partial widths of ϒ (4S) and ϒ (5S) is pointed out. From our analysis we obtain m ̄ b ( m ̄ b )=4.20±0.09 GeV. The impact of future CLEO data is discussed.Note:
- 11 pages, latex
- bottom: mass
- spectral representation
- sum rule: relativistic
- renormalization
- operator product expansion: moment
- electron positron: annihilation
- bottom: pair production
- upsilon mesons
- numerical calculations
- interpretation of experiments: Cornell CESR Stor
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