Charm and Bottom Quark Masses: an Update - High Energy Physics - PhenomenologyReport as inadecuate




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Abstract: Using new four-loop results for the heavy quark vacuum polarization and newdata for bottom quark production in electron-positron annihilation, an updateon the determination of charm- and bottom-quark masses through sum rules hasbeen performed. The previous result for the charm-quark mass, $m c3 { mGeV}= 0.98613 { m GeV}$, based on the lowest moment, is supported by thenew results from higher moments which lead to consistent values with comparableerrors. The new value for the bottom quark, $m b10 { m GeV}= 3.61016 { mGeV}$, corresponding to $m bm b= 4.16316 { m GeV}$, makes use both of thenew data and the new perturbative results and is consistent with the earlierdetermination.



Author: K. G. Chetyrkin, J. H. Kuhn, A. Maier, P. Maierhöfer, P. Marquard, M. Steinhauser, C. Sturm

Source: https://arxiv.org/



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