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 present a method to evaluate numerically Feynman diagrams directly fromtheir Feynman parameters representation. We first disentangle overlappingsingularities using sector decomposition. Threshold singularities are treatedwith an appropriate contour deformation. We have validated our techniquecomparing with recent analytic results for the gg->h two-loop amplitudes withheavy quarks and scalar quarks.Comment: 8 pages, 3 figures; references added, version to appear in JHE

Evaluating multi-loop Feynman diagrams with infrared and threshold singularities numerically