m(b) at M(Z)

Abreu, P.;Cortina Gil, Eduardo;DELPHI Collaboration;et.al.
(1998) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 418, n° 3-4, p. 430-442 (1998)

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The value of the b quark mass at the MZ scale defined in the View the MathML source renormalization scheme, mb(MZ), was determined using 2.8 million hadronic Z decays collected during 1992-1994 by the DELPHI detector to be View the MathML source The analysis considers NLO corrections to the three-jet production rate including mass effects, and the result obtained agrees with the QCD prediction of having a running b quark mass at an energy scale equal to MZ. This is the first time that such a measurement is performed far above the View the MathML source production threshold. The study also verifies the flavour independence of the strong coupling constant for b and light quarks within 1% accuracy.
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Abreu, P., Cortina Gil, E., DELPHI Collaboration, & et al. (1998). m(b) at M(Z). Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 418(3-4), 430-442. https://doi.org/10.1016/S0370-2693(97)01442-1 (Original work published 1998)