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SUMMARY:Integral reduction via parametric annihilators with CALICO
DTSTART:20260528T120000Z
DTEND:20260528T130000Z
DTSTAMP:20260613T152900Z
UID:indico-event-18149@indico.global
DESCRIPTION:Speakers: Gaia Fontana (University of Zurich)\n\nThe reduction
  of loop integrals to a basis of linearly independent master integrals is 
 a crucial step for modern multiloop theoretical predictions. Traditionally
 \, it is done in momentum space following the Laporta algorithm. In this t
 alk we elaborate on the method of parametric annihilators for deriving rel
 ations among integrals. Annihilators are differential operators that annih
 ilate multi-valued integration kernels. We describe a method for computing
  parametric annihilators and show how to use them to derive relations betw
 een a wide class of special functions. These include loop integrals releva
 nt to high-energy physics in several parametric representations. We finall
 y present the public Mathematica package CALICO for computing parametric a
 nnihilators and its usage in several examples. We also discuss modern appl
 ications of this technique and its combination with expansion by regions.\
 n\nhttps://indico.global/event/18149/
LOCATION:U2 - 5017 (Universita` Milano Bicocca)
URL:https://indico.global/event/18149/
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