English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This paper is a first report on the determination of $\Lambda_{\msbar}$ fromlattice simulations with 2+1+1 twisted-mass dynamical flavours {\it via} thecomputation of the ghost-gluon coupling renormalized in the MOM Taylor scheme.We show this approach allows a very good control of the lattice artefacts andconfirm the picture from previous works with quenched and ${\rm N}_f$=2twisted-mass field configurations which prove the necessity to includenon-perturbative power corrections in the description of the running. Weprovide with an estimate of $\Lambda_{\msbar}$ in very good agreement withexperimental results. To our knowledge it is the first calculation with adynamical charm quark which makes the running up to $\alpha_s(M_Z)$ much safer.

Ghost-gluon coupling, power corrections and $\Lambda_{\bar{\rm MS}}$ from lattice QCD with a dynamical charm