6533b85efe1ef96bd12bf345
RESEARCH PRODUCT
Charm quark mass determined from a pair of sum rules
Hubert SpiesbergerHubert SpiesbergerPere MasjuanJens Erlersubject
Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsQCD sum rulesCurrent (mathematics)010308 nuclear & particles physicsContinuum (topology)High Energy Physics::PhenomenologyGeneral Physics and AstronomyPerturbative QCDFOS: Physical sciencesAstronomy and Astrophysics01 natural sciencesCharm quarkHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesHigh Energy Physics::ExperimentCharm (quantum number)Current vector010306 general physicsdescription
In this paper, we present preliminary results of the determination of the charm quark mass $\hat{m}_c$ from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD at ${\cal O} (\hat \alpha_s^3)$. Self-consistency between two different sum rules allow to determine the continuum contribution to the moments without requiring experimental input, except for the charm resonances below the continuum threshold. The existing experimental data from the continuum region is used, then, to confront the theoretical determination and reassess the theoretic uncertainty.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-11-17 |