Loops and Legs in Quantum Field Theory

24 Apr 2016, 18:00 → 29 Apr 2016, 14:30 Europe/Berlin

Leipzig

13th Workshop organized by the Theory Group, DESY, Zeuthen 

Omika @ fotolia.com

Sunday 24 April

18:00 Dinner

19:30 Reception

Monday 25 April

Plenary 1

1 Welcome

Speaker: Tord Riemann (DESY)

2 Results from slicing methods for NNLO calculations

Speaker: Keith Ellis

Slides 02_Ellis_LL2016.pdf

3 NLO Standard model effective field theory for Higgs and EW precision data

Speaker: Giampiero Passarino

Slides LL16_Passarino.pdf

4 Integrand reduction techniques for NLO calculations and beyond

Speaker: Giovanni Ossola

Slides 04_Ossola_LoopsLegs2016.pdf

10:35 Coffee Break

Plenary 1

5 Algorithms to solve coupled differential systems in terms of power series

Speaker: Carsten Schneider

Slides 05_Schneider.pdf

6 Local integrands for two-loop QCD amplitudes

Speaker: Simon David Badger

Slides 06_Badger_SB_LL2016.pdf

7 On the integrand decomposition of multi-loop amplitudes

Speaker: Pierpaolo Mastrolia

Slides mastrolia_LL2016.pdf

8 Multijet merging for vector boson plus jets production including electroweak corrections

Speaker: Philipp Maierhoefer

Slides 08_maierhoefer.pdf

13:05 Lunch

Plenary 2

9 Four-loop corrections to the MSbar-OS quark mass relation and the anomalous magnetic moment of the muon

Speaker: Matthias Steinhauser

Slides fp_gm2_ll16.pdf

10 Multiloop Renormalization Group: new results

Speaker: Konstantin Chetyrkin

Slides 02_Chetyrkin_LL16.pdf

11 Computation of Heavy Quarkonium Spectrum in Perturbative QCD

Speaker: Yukinari Sumino

Slides 03_Sumino_CompSpect.pdf

16:00 Cofee Break

Plenary 2

12 Higher-order corrections in non-minimal supersymmetric models

Speaker: Dominik Stoeckinger

Slides 04_Stoeckinger_2016April.pdf

13 Precision calculations for extended Higgs sectors with and without supersymmetry

Speaker: Wolfgang Hollik

Slides 05_hollik.pdf

14 SUSY Higgs-mass predictions: full model vs. effective field theory approach

Speaker: Sven Heinemeyer (IFCA (CSIC, Santander))

Slides sven.pdf

18:00 Dinner

Tuesday 26 April

Plenary A1

15 Divector Boson Production with Jets at the LHC. Updates from the BlackHat LIbrary

Speaker: Fernando Febres Cordero

Slides LL_Apr_2016.pdf

16 High multiplicity processes at NLO

Speaker: Daniel Maitre

Slides 02_Maitre_NNLOnTuples.pdf

17 Towards a numerical unitarity approach for two-loop amplitudes in QCD

Speaker: Harald Ita

Slides LL2016.pdf

Plenary B1

18 Evaluating multi-loop Feynman integrals using differential equations: automatizing the transformation to a canonical basis

Speaker: Christoph Meyer

Slides ChristophMeyer_LL2016.pdf

19 Integration-by-parts reductions from unitarity cuts and algebraic geometry

Speaker: Kasper Larsen

Slides Talk_Loops_and_Legs_2016.pdf

20 Master integrals for splitting functions from differential equations in QCD

Speaker: Oleksandr Gituliar

Slides gituliar-LL16.pdf

10:30 Coffee Break

Plenary A1

21 Electroweak corrections to gauge-boson pair production processes at the LHC including leptonic W/Z decays

Speaker: Stefan Dittmaier

Slides pp4l_ll16.pdf

22 Progress in off-shell amplitudes

Speaker: Andreas van Hameren

Slides 05_vanHameren.pdf

23 New simpler methods of matching NLO corrections with parton shower Monte Carlo

Speaker: Stanislaw Jadach

Slides 2016-leipzig-jadach-v3.pdf

24 Completely local fully differential subtractions at NNLO

Speaker: Gabor Somogyi

Slides CoLoRFulNNLO_LL_2016.pdf

Plenary B1

25 The sunrise integral and elliptic polylogarithms

Speaker: Christian Bogner

Slides 04_Bogner_LL2016.pdf

26 Differential equations and dispersion relations for the sunrise amplitudes

Speaker: Lorenzo Tancredi

Slides 05_Tancredi_LL2016.pdf

27 Numerical integration of massive two-loop Mellin-Barnes integrals in Minkowskian regions

Speaker: Janusz Gluza

Slides 06_Gluza_ll2016gluza.pdf

28 From elliptic iterated integrals to elliptic multiple zeta values

Speaker: Johannes Brödel

Slides talk_160426.pdf

13:00 Lunch

Plenary A2

29 How to exploit canonical bases for $gg\rightarrow H$ at NNNLO

Speaker: Alexander Hasselhuhn

Slides Hasselhuhn.pdf

30 NLO corrections to Higgs boson pair production in gluon fusion

Speaker: Matthias Kerner

Slides LandL_Kerner_v1.1

31 Top quark mass effects in Higgs boson pair production up to NNLO

Speaker: Jens Hoff

Slides double-higgs.pdf

Plenary B2

32 Cutkosky Rules from Outer Space

Speaker: Dirk Kreimer

Slides 01_Kreimer_LL2016Kreimer.pdf

33 A planar four-loop form factor and cusp anomalous dimension in QCD

Speaker: Vladimir Smirnov

Slides 02_Smirnov.pdf

34 Applications of the loop-tree duality

Speaker: German Rodrigo

Slides 2016_04_rodrigo_duality_LoopsLegs.pdf

16:00 Coffee Break

Plenary A2

35 Two-Loop integrals for precision Higgs boson phenomenology

Speaker: Francesco Moriello

Slides Moriello_LL2016.pdf

36 Pseudo-scalar Higgs form factor at 3 loops and QCD N3LO threshold corrections to its production at the LHC

Speaker: Vajravelu Ravindran

Slides RaviLL16.pdf

37 The Higgs boson at high pT: Finite top-mass improved results

Speaker: Tobias Neumann

Slides TobiasNeumann.html

Plenary B2

38 The coaction on phi^4 periods and the six-loop beta function

Speaker: Erik Panzer

Slides talk.pdf

39 On a four loop form factor in N=4

Speaker: Rutger Boels

Slides BOELS.pdf

40 On the evaluation and reduction of generalized polylogarithms

Speaker: Hjalte Frellesvig

Slides leipzig.pdf

18:00 Dinner

20:00 Concert

Wednesday 27 April

Plenary 3

41 PDFs, \alpha_s, and quark masses from the global fits

Speaker: Sergey Alekhin

Slides alekhin.pdf

42 3-Loop Heavy Flavour Corrections to Deep-Inelastic Scattering

Speaker: Arnd Behring

Slides ll2016-talk.pdf

43 Higgs production at N3LO

Speaker: Babis Anastasiou

Slides Anastasiou_LL2016.pdf

10:30 Coffee Break

Plenary 3

44 Precise predictions for Higgs production in association with top quarks

Speaker: Ansgar Denner

Slides ll16.pdf

45 Differential distributions for top-quark pair production at NNLO

Speaker: David Heymes

Slides heymes_LL2016.pdf

46 Top Quark Pair Production in Association with a Jet with NLO QCD Off-Shell Effects

Speaker: Malgorzata Worek

Slides mworek_ll2016.pdf

12:30 Lunch

14:30 Excursion

16:30 Coffee Break

18:00 Dinner

Evening Session

47 Deciphering the Higgs Boson: New Results from the LHC

Speaker: Christian Weiser

Slides CWeiser_LLQFT.pdf

Thursday 28 April

Plenary A3

48 Alpha_s from the total cross section of electron-positron annihilation into hadrons

Speaker: Johann Kühn

Slides 01_Kuehn_LoopsLegs_2016.pdf

49 Light quark mass effects in Higgs boson production in gluon fusion

Speaker: Alexander Penin

Slides penin_ll16.pdf

50 Electroweak corrections to top pair production near threshold

Speaker: Andreas Maier

Slides talk.pdf

Plenary B3

51 Charm hadroproduction in the atmosphere, QCD and neutrino astronomy

Speaker: Sven Moch

Slides sven_moch.pdf

52 Precision Measurement of sin^2 theta_w at MESA

Speaker: Hubert Spiesberger

Slides spiesber-ll16.pdf

53 HERWIRI2.1: Electroweak Corrections for Hadron Scattering

Speaker: Scott Yost

Slides yost-ll16-v2.pdf

10:30 Coffee Break

Plenary A3

54 The pentabox master integrals with the simplified differential equations approach

Speaker: Costas Papadopoulos

Slides ll2016.pdf

55 Two-loop five-point integrals in massless QCD

Speaker: Nicola Adriano Lo Presti

Slides lopresti-LL-16.pdf

56 Gluon form factor decompositions from the worldline formalism

Speaker: Christian Schubert

Slides schubert.pdf

57 Leading and next-to-leading large-n_f terms in the cusp anomalous dimension and quark-antiquark potential

Speaker: Andrey Grozin

Slides 07_Grozin-LL2016.pdf

Plenary B3

58 Beta-functions in higher dimensional field theories

Speaker: John Gracey

Slides 04_Gracey_leip16.pdf

59 Two loop conformal anomaly in Quantum Chromodynamics: nonsinglet operators

Speaker: Alexander Manashov

Slides LL2016_manashov.pdf

60 Calculation of 3-loop operator matrix elements with two masses

Speaker: Abilio de Freitas

Slides 06_De_Freitas_LL2016.pdf

61 Summing logarithms and factorization for massive quark initiated jets and the Pythia top quark mass

Speaker: Andre Hoang

Slides 07_Hoang-LoopsLegs.pdf

13:00 Lunch

Plenary A4

62 Jet cross sections with CoLoRFul NNLO

Speaker: Adam Kardos

Slides kardos.pdf

63 NNLO dijet production in DIS with the antenna subtraction method

Speaker: Jan Niehues

Slides 02_Niehues.pdf

64 Z+jet production at NNLO

Speaker: Alexander Huss

Slides huss_LL16.pdf

Plenary B4

65 Binomial Sums in the package HarmonicSums

Speaker: Jakob Ablinger

Slides talk.pdf

66 FormCalc 9 and Extensions

Speaker: Thomas Hahn

Slides hahn.pdf

67 Automation of 2-loop amplitude calculations

Speaker: Stephen Jones

Slides sjones-ll2016.pdf

16:00 Coffee Break

Plenary A4

68 Long-distance singularities in multi-leg scattering amplitudes

Speaker: Einan Gardi

Slides Gardi_Loops_and_Legs_2016.key.pdf

69 Threshold corrections and vacuum stability

Speaker: Bernd Kniehl

Slides ll16.pdf

70 MATRIX: A fully-differential NNLO(+NNLL) process library

Speaker: Marius Wiesemann

Slides Wiesemann_LL16.pdf

Plenary B4

71 Forcer: a FORM program for 4-loop massless propagators

Speaker: Takahiro Ueda

Slides Forcer-LL2016.pdf

72 Forcer results on deep-inelastic scattering

Speaker: Andreas Vogt

Slides av-ll16.pdf

73 Power corrections to flavour non-singlet structure functions and sum rules at NNLO

Speaker: Giulio Falcioni

Slides LL_falcioni.pdf

19:30 Conference Dinner

Friday 29 April

Plenary 4

74 Form, diagrams and topologies

Speaker: Jos Vermaseren

Slides vermaseren.pdf

75 Five-loop massive tadpoles

Speaker: York Schröder

Slides talkLL16.pdf

76 30 years, 750 integrals, and 1 dessert

Speaker: Tord Riemann

Slides riemann-LL2016-upload.pdf

10:30 Coffee Break

Plenary 4

77 A basis of finite Feynman integrals

Speaker: Andreas von Manteuffel

Slides ll16-manteuffel.pdf

78 Relations and representations of QCD amplitudes

Speaker: Stefan Weinzierl

Slides leipzig.pdf

79 Threshold logarithms at next-to-leading power

Speaker: Lorenzo Magnea

Slides Magnea.pdf

80 Perturbative quantum field theory informs algebraic geometry

Speaker: David Broadhurst

Slides 07_Broadhurst_LL2016.pdf

13:00 Lunch

14:00 Adjourn