31 July 2018 to 6 August 2018
Maynooth University
Europe/Dublin timezone

Charm Quark Mass with Calibrated Uncertainty

2 Aug 2018, 16:20
20m
Hall H (Arts Bldg.)

Hall H

Arts Bldg.

Talk C: Heavy quarks Heavy quarks

Speaker

Dr Pere Masjuan Queralt (IFEA Barcelona)

Description

We determine the charm quark mass mc(mc) from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD. Only experimental data for the charm resonances below the continuum threshold are needed in our approach, while the continuum contribution is determined by requiring self-consistency between various sum rules, including the one for the zeroth moment. Existing data from the continuum region can then be used to bound the theoretical error. Our result is mc(mc)=1272±8 MeV for αs(MZ)=0.1182. Special attention is given to the question how to quantify and justify the uncertainty.

Primary author

Prof. Jens Erler (IF-UNAM)

Co-authors

Prof. Hubert Spiesberger (Mainz University) Dr Pere Masjuan Queralt (IFEA Barcelona)

Presentation Materials