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

In the context of the dispersive model for non-perturbative corrections, weextend the leading renormalon subtraction to NNLO for the thrust distributionin $e^+e^-$ annihilation. Within this framework, using a NNLL+NNLO perturbativedescription and including bottom quark mass effects to NLO, we analyse data inthe centre-of-mass energy range $\sqrt{s}=14-206$ GeV in view of a simultaneousdetermination of the strong coupling constant and the non-perturbativeparameter $\alpha_0$. The fits are performed by matching the resummed andfixed-order predictions both in the R and the log-R matching schemes. The finalvalues in the R scheme are $\alpha_s(M_Z) = 0.1131^{+0.0028}_{-0.0022}$,$\alpha_0(2 {\rm GeV}) = 0.538^{+0.102}_{-0.047}$.

Power corrections in the dispersive model for a determination of the strong coupling constant from the thrust distribution