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

We have calculated the perturbative corrections to all the structurefunctions in the semileptonic decays of a heavy quark. Assuming an arbitrarygluon mass as a technical tool allowed to obtain in parallel all the BLMcorrections. We report the basic applications, viz. perturbative corrections tothe hadronic mass and energy moments with full dependence on the charge leptonenergy cut. In the adopted scheme with the OPE momentum scale separation around1 GeV the perturbative corrections to <M_X^2> are small and practicallyindependent of E_{cut}; the BLM corrections are small, too. The corrections tothe second mass squared moment show some decrease with E_{cut} consistent withthe effect of the Darwin operator, within the previously estimated theoreticaluncertainty. Perturbative corrections in the pole-type schemes appearsignificant and vary with E_\ell, decreasing the moments at higher cuts. Thehardness of hadronic moments is quantitatively illustrated for different cutson E_\ell.Comment: 16 pages, LaTeX, ten figure

PERTURBATIVE CORRECTIONS TO THE SEMILEPTONIC b-DECAY MOMENTS: $E^\ell_{\rm cut}$ DEPENDENCE AND RUNNING-αs EFFECTS IN THE OPE APPROACH

PERTURBATIVE CORRECTIONS TO THE SEMILEPTONIC b-DECAY MOMENTS: $E^\ell_{\rm cut}$ DEPENDENCE AND RUNNING-α_s EFFECTS IN THE OPE APPROACH