##### Workshop

#### Amplitudes in the LHC era

**Oct 15, 2018 - Nov 23, 2018**

**Abstract**

Scattering amplitudes describe the high-energy interactions of elementary particles and are central to theoretical predictions for processes at the "Large Hadron Collider" (LHC) at CERN in Geneva. Recent years have revealed that scattering amplitudes hide a wealth of mathematical structure, whose study is not only interesting in its own right, but may eventually lead to a new approach to perform computations in particle physics. A lot of progress is being made regarding the computation of perturbative amplitudes in gauge and gravity theories, resulting in a novel interdisciplinary field of research connecting algebraic geometry and number theory to string and gauge theories, and thus eventually to LHC phenomenology through the computation of precision observables. The aim of this program is to bring together experts from theoretical physics and mathematics in order to advance our understanding of the mathematics underlying scattering amplitudes in field and string theory. Ultimately, the goal will be to deepen our knowledge of the mathematics underlying theoretical physics and to use advances in pure mathematics and string theory to develop powerful new computational tools for scattering amplitudes and precision predictions for collider experiments.

**Topics**

- Differential equations, iterated integrals and elliptic functions.

- Algebraic structures associated to scattering amplitudes.

- Loop integrands, ambitwistors and algebraic geometry.

- Integrable structures in scattering amplitudes.

- Multi-loop computations for LHC physics.

**Organizers**

Vittorio Del Duca, ETH Zürich & INFN LNF, Claude Duhr, CERN & Uni. Louvain, Falko Dulat, SLAC

**Local organizer**

catani@fi.infn.it

**Contact**

delducav@itp.phys.ethz.ch, falko.dulat@gmail.com, claude.duhr@cern.ch

**Related events**

Theoretical tools for precision physics (Conference) - Oct 29, 2018

**Talks**

Oct 15, 2018 - 14:30 | V. Del Duca | Welcome | Introduction | |||||

Oct 16, 2018 - 14:30-15:30 | Chris Wever | The Higgs pT distribution | Talk | Slides | ||||

Oct 17, 2018 - 14:30-15:30 | Nicolas Deutschmann | Associated bbH production | Talk | Slides | ||||

Oct 18, 2018 - 14:30-15:30 | Tiziano Peraro | Functional reconstruction of multi-loop QCD amplitudes | Talk | |||||

Oct 19, 2018 - 14:30-15:30 | Franz Herzog | Geometric subtraction for real radiation at NNLO | Talk | Slides | ||||

Oct 22, 2018 - 14:30 | Falko Dulat | Welcome | Introduction | |||||

Oct 23, 2018 - 14:30-15:30 | Lorenzo Magnea | Factorization and Subtraction beyond NLO | Talk | Slides | ||||

Oct 25, 2018 - 14:30-15:30 | Ruth Britto | Reduction of hypergeometric integrals | Talk | |||||

Oct 26, 2018 - 14:30-15:30 | Alex Ochirov | IR structure of two-loop four-gluon amplitude in N=2 SQCD | Talk | Slides | ||||

Nov 05, 2018 - 14:30-15:00 | Claude Duhr | Welcome | Introduction | |||||

Nov 05, 2018 - 15:00-16:00 | Jorrit Bosma | Maximal Cuts in Arbitrary Dimension in the Baikov Representation | Talk | |||||

Nov 06, 2018 - 14:30-15:30 | Giulio Salvatori | Positive Geometries for 1-loop Integrands | Talk | |||||

Nov 07, 2018 - 14:30-15:30 | Matt von Hippel | Calabi-Yaus and Other Animals | Talk | Slides | ||||

Nov 08, 2018 - 14:00-15:00 | Andrew McLeod | Cluster Algebras, Steinmann Relations, and the Lie Cobracket in planar N=4 sYM | Talk | Slides | ||||

Nov 08, 2018 - 15:00-16:00 | Pierpaolo Mastrolia | Feynman Integrals and Intersection Theory | Talk | |||||

Nov 09, 2018 - 10:30-11:30 | Lance Dixon | Feynman at 100 | Talk | Slides | ||||

Nov 12, 2018 - 15:00-15:30 | Claude Duhr | Introduction | Introduction | |||||

Nov 13, 2018 - 14:30-15:30 | Piotr Tourkine | Higher loop integrand relationship in gauge theories at higher loops from string theory | Talk | |||||

Nov 14, 2018 - 14:30-15:30 | Jan Plefka | New results for Einstein-Matter amplitudes | Talk | |||||

Nov 15, 2018 - 14:30-15:30 | Zhengwen Liu | Scattering equations in Multi-Regge Kinematics | Talk | Slides | ||||

Nov 16, 2018 - 14:30-15:30 | James Matthew | Steps Toward a Two Loop Graphical Coproduct | Talk | Slides | ||||

Nov 19, 2018 - 14:30-15:00 | Claude Duhr | Introduction | Introduction | |||||

Nov 20, 2018 - 14:30-15:30 | Paolo Benincasa | The wavefunction of the universe and the flat-space S-matrix | Talk | |||||

Nov 21, 2018 - 14:00-15:00 | Livia Ferro | Amplituhedron meets Jeffrey-Kirwan Residue | Talk | |||||

Nov 21, 2018 - 15:00-16:00 | Joe Farrow | Conformal Supergravity, 4D Scattering Equations and Monte Carlo Methods | Talk | Slides | ||||

Nov 22, 2018 - 14:30-15:30 | Federico Zerbini | Modular graph functions, multiple zeta values and iterated Eichler integrals | Talk |