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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We explore the feasibility of determining Mellin moments of the pion's lightcone distribution amplitude using the heavy quark operator product expansion(HOPE) method. As the first step of a proof of principle study we pursue adetermination of the second Mellin moment. We discuss our choice of kinematicswhich allows us to successfully extract the moment at low pion momentum. Wedescribe the numerical simulation, and describe the data analysis, which leadsus to a preliminary determination of the second Mellin moment in the continuumlimit in the quenched approximation as $\langle\xi^2\rangle=0.19(7)$ in the$\bar{\text{MS}}$ scheme at 2 GeV.

A Preliminary Determination of the Second Mellin Moment of the Pion's Distribution Amplitude Using the Heavy Quark Operator Product Expansion