A fit of the b-quark pole and running masses from HERA beauty data is claimed to match the NNLO perturbative QCD relation, but the comparison uses the wrong strong-coupling scale and overstates the agreement.
Charm-quark pole mass from HERA Combined and LHCb charm production data
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abstract
One of the most popular definition for the charm-quark mass is the charm-quark pole mass $m_c^{\rm pole}$. In this contribution, we extract the charm-quark pole mass through perturbative Quantum Chromo Dynamics (pQCD) analysis up to the next-to-next-to-leading order (NNLO) corrections from HERA Combined and LHCb charm production recent data sets. Then, we investigate for the first time the charm-quark pole mass $m_c^{\rm pole}$ pure impact, as an extra pQCD parameter on the proton Parton Distribution Functions (PDFs) at the NNLO corrections.
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NNLO compatibility between pQCD theory and phenomenology in determination of the $b$-quark pole and \MSbar running masses
A fit of the b-quark pole and running masses from HERA beauty data is claimed to match the NNLO perturbative QCD relation, but the comparison uses the wrong strong-coupling scale and overstates the agreement.