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Antidifferentiation and the Calculation of Feynman Amplitudes

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Seminar Room III (DESY Zeuthen)

Seminar Room III

DESY Zeuthen

DESY Zeuthen
Carsten Schneider (RISC, J. Kepler University Linz), Johannes Bluemlein (DESY), Peter Marquard (DESY), Sven-Olaf Moch (UHH), Volker Schomerus (DESY Theory Group)
Participants
  • Andreas Maier
  • Andrés Rentería
  • Aris Ioannou
  • Carsten Schneider
  • Christoph Dlapa
  • Christoph Koutschan
  • Claude Duhr
  • Clemens Raab
  • David Broadhurst
  • Dirk Kreimer
  • Einan Gardi
  • Elaine Wong
  • Erik Panzer
  • Georgios Papathanasiou
  • German Fabricio Roberto Sborlini
  • Germán Rodrigo
  • Henry Kißler
  • Hjalte Axel Frellesvig
  • Jacques-Arthur Weil
  • Jakob Ablinger
  • JESUS AGUILERA
  • Jochen Bartels
  • Johann Usovitsch
  • Johannes Bluemlein
  • Johannes Broedel
  • Johannes Henn
  • Jos Vermaseren
  • Judith Plenter
  • Marco Saragnese
  • Marko Berghoff
  • Matthew von Hippel
  • Mikhail Kalmykov
  • Nikolai Fadeev
  • Norma Selomit Ramírez Uribe
  • Paul-Hermann Balduf
  • Peter Marquard
  • Peter Paule
  • Philipp Kreer
  • Roger Hernández-Pinto
  • Ruth Britto
  • Samuel Abreu
  • Silviu Radu
  • Stefan Weinzierl
  • Stefano Laporta
  • Sven-Olaf Moch
  • Vladimir Smirnov
  • Volker Schomerus
  • Monday, October 5
    • 9:00 AM → 11:20 AM
      Monday morning
      • 9:00 AM
        Analytic Integration Methods in QFT: an Introduction 1h
        Speaker: Prof. Johannes Bluemlein (DESY)
        Slides
      • 10:10 AM
        Empirical determinations of Feynman integrals using integer relation algorithms 1h
        Speaker: Dr David Broadhurst (Open University)
        Slides
    • 11:20 AM → 11:50 AM
      Coffee 30m
    • 11:50 AM → 1:00 PM
      Monday morning
      • 11:50 AM
        Holonomic relations for hypergeometric functions and modular forms 1h
        Speaker: Prof. Peter Paule (RISC, Linz)
        Slides
    • 1:00 PM → 2:30 PM
      Lunch 1h 30m
    • 2:30 PM → 3:40 PM
      Monday afternoon
      • 2:30 PM
        Feynman Diagrams and (generalized) hypergeometric functions 1h
        Speaker: Dr M. Kalmykov (Hamburg)
        Slides
    • 3:40 PM → 4:10 PM
      Coffee 30m
    • 4:10 PM → 5:20 PM
      Monday afternoon
      • 4:10 PM
        Hyperlogarithms: Differential and difference equations from linear fibrations 1h
        Speaker: Dr Erik Panzer (U. Oxford)
        Slides
  • Tuesday, October 6
    • 9:00 AM → 11:15 AM
      Tuesday morning
    • 11:15 AM → 11:45 AM
      Lunch 30m
    • 1:00 PM → 3:20 PM
      Tuesday afternoon
      • 1:00 PM
        Summation Theory and Integration 1h
        Speaker: Dr Carsten Schneider (RISC, Linz)
        Slides
      • 2:10 PM
        Holonomic Integration 1h
        Speaker: Dr C. Koutschan (RICAM, Linz)
        Slides
    • 3:20 PM → 3:50 PM
      Coffee 30m
    • 3:50 PM → 6:10 PM
      Tuesday afternoon
      • 3:50 PM
        Survey on Integration by Parts 1h
        Speaker: Dr Peter Marquard (DESY)
        Slides
      • 5:00 PM
        Some steps towards improving IBP calculations 1h
        Speaker: Dr Jos Vermaseren (Nikhef)
        Slides
  • Wednesday, October 7
    • 9:00 AM → 11:20 AM
      Wednesday morning
      • 9:00 AM
        Outer Space as a combinatorial backbone for Cutkosky rules and co-actions 1h
        Speaker: Prof. Dirk Kreimer (Humboldt U. Berlin)
        Slides
      • 10:10 AM
        Analytic solution of differential equation systems 1h
        Speaker: Prof. Johannes Henn (MPI, Munich)
        Slides
    • 11:20 AM → 11:50 AM
      Coffee 30m
    • 11:50 AM → 1:00 PM
      Wednesday morning
      • 11:50 AM
        Expansion by regions: an overview 1h
        Speaker: Dr Vladimir Smirnov (Moscow State U.)
        Slides
    • 1:00 PM → 2:30 PM
      Lunch 1h 30m
    • 2:30 PM → 3:40 PM
      Wednesday afternoon
      slides
      • 2:30 PM
        Calculating Four Loop Corrections in QCD 1h
        Speaker: Prof. Sven-Olaf Moch (U. Hamburg)
        Slides
    • 3:40 PM → 4:10 PM
      Coffee 30m
    • 4:10 PM → 5:20 PM
      Wednesday afternoon
      slides
      • 4:10 PM
        Differential Galois Theory and Integration 1h
        Speaker: Prof. J.A. Weil (U. Limoges)
  • Thursday, October 8
    • 9:00 AM → 11:20 AM
      Thursday morning
      • 9:00 AM
        Top-down Decomposition: A Cut-based Approach to Integral Reductions 1h
        Speaker: Dr Hjalte Frellesvig (U. Padova)
        Slides
      • 10:10 AM
        Computer algebra tools for nested integrals 1h
        Speaker: Dr C. Raab (JKU Linz)
        Slides
    • 11:20 AM → 11:50 AM
      Coffee 30m
    • 11:50 AM → 1:00 PM
      Thursday morning
      • 11:50 AM
        Elliptic Integrals 1h
        Speaker: Dr Stefan Weinzierl (U. Mainz)
        Slides
    • 1:00 PM → 2:30 PM
      Lunch 1h 30m
    • 2:30 PM → 3:40 PM
      Thursday afternoon
      • 2:30 PM
        A geometrical framework for amplitude recursions: bridging between trees 1h
        Speaker: Dr Johannes Broedel (Humboldt U. Berlin)
        Slides
    • 3:40 PM → 4:10 PM
      Coffee 30m
    • 4:10 PM → 5:20 PM
      Thursday afternoon
      • 4:10 PM
        The Almkvist-Zeilberger algorithm and multi-integration 1h
        Speaker: Dr Jakob Ablinger (RISC, Linz)
        Slides
  • Friday, October 9
    • 9:00 AM → 10:10 AM
      Friday morning
      • 9:00 AM
        Direct Integration for multi-leg amplitudes: Tips, Tricks, and When They Fail 1h
        Speaker: Dr Matthew von Hippel (Niels Bohr Institute)
        Slides
    • 10:10 AM → 10:40 AM
      Coffee 30m
    • 10:40 AM → 1:00 PM
      Friday morning
      • 10:40 AM
        All-order amplitudes at any multiplicity in the multi-Regge limit 1h
        Speaker: Dr G. Papathanasiou (DESY)
        Slides
      • 11:50 AM
        The analytic structure of the 8-point amplitude in N=4 SYM 1h
        Speaker: Prof. Joachim Bartels (U. Hamburg)
        Slides
    • 1:00 PM → 2:00 PM
      Lunch 1h
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