Charm and bottom quark masses from perturbative QCD
May, 20064 pages
Published in:
- Phys.Rev.D 74 (2006) 074006
e-Print:
- hep-ph/0605023 [hep-ph]
PDG: -QUARK MASS
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Abstract:
Using a new result for the first moment of the hadronic production cross section at order , and new data on the and resonances for the charm quark, we determine the \msb masses of the charm and bottom quarks to be GeV and GeV. We assume that the continuum contribution to the sum rules is adequately described by pQCD. While we observe a large reduction of the perturbative error, the shifts induced by the theoretical input are very small. The main change in the central value of is related to the experimental data. On the other hand, the value of is not changed by our calculation to the assumed precision.- 14.65.Fy
- 14.65.Dw
- 12.38.Bx
- charm
- bottom
- quark: mass
- quantum chromodynamics
- perturbation theory: higher-order
- electron positron: annihilation
- hadron: electroproduction
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