Jul 4 – 11, 2018
COEX, SEOUL
Asia/Seoul timezone

Charm Quark Mass with Calibrated Uncertainty

Jul 6, 2018, 9:30 AM
15m
101 (COEX, Seoul)

101

COEX, Seoul

Parallel Strong Interactions and Hadron Physics Strong Interactions and Hadron Physics

Speaker

Jens Erler (IF-UNAM)

Description

We determine the charm quark mass $m_c(m_c)$ 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 $m_c(m_c) = 1272 \pm 8$ MeV for $\alpha_s(M_Z) = 0.1182$. Special attention is given to the question how to quantify and justify the uncertainty.

J. Erler, P. Masjuan and H. Spiesberger,
Charm Quark Mass with Calibrated Uncertainty,
Eur. Phys. J. C 77, 99 (2017) [arXiv:1610.08531].

Primary author

Jens Erler (IF-UNAM)

Co-authors

Presentation materials