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/

Zendy Plus

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

Zendy Tools

Zendy Open

This note complements and clarifies the results obtained in the originalpaper {\it QCD Parameters Correlations from Heavy Quarkonia} [1] where, here,we present a more detailed discussion of the \alpha_s-results obtained @ N2LOat two different subtraction scales \mu=2.85 and 9.50 GeV from the(pseudo)scalar heavy quarkonia mass-spliitingsM_{\chi_{0c(0b)}}-M_{\eta_{c(b)}}. We obtain from theM_{\chi_{0c}}-M_{\eta_{c}} sum rule: \alpha_s(2.85)=0.262(9) -->\alpha_s(M_\tau)=0.318(15) --> \alpha_s(M_Z)=0.1183(19)(3) and from theM_{\chi_{0b}}-M_{\eta_{b}} one: \alpha_s(9.50)=0.180(8) -->\alpha_s(M_\tau)=0.312(27) --> \alpha_s(M_Z)=0.1175(32)(3), in completeagreement with the world average: \alpha_s(M_Z)=0.1181(11).

$\alpha_s(\mu)$ from $M_{\chi_{0c(0b)}}-M_{\eta_{c(b)}}$@N2LO