Workshop “Loops & Geometry: Hidden Structures in Multi-loop Amplitudes”Registration now open

19 February 2026

Photo: YOUNGST@RS

The “Loops & Geometry: Hidden Structures in Multi-loop Amplitudes” workshop will bring together mathematicians and theoretical physicists with expertise in algebraic geometry and multi-loop scattering amplitudes computation, with the goal of exploring recent developments in advanced mathematical techniques that clarify the common structure underlying  particle physics, string theory and gravitational observables.

The workshop will be hosted on the MITP platform and will take place from April 20 to 22
and is organized by Roberta Angius (Institut für Theoretische Physik, Universität Hamburg), Anthony Massidda (Università degli Studi dell’Insubria, Como), and Matteo Pegorin (Università degli Studi di Padova).

By fostering dialogue across communities, the workshop will provide both a survey of recent advances and a platform for presenting new ideas.

The workshop will be focused on the following three main topics: 

• Amplitudes structure and algebraic periods
• Intersection Theory and String Amplitudes
• Gravitational waves and Differential equations

Three advanced lectures on Calabi-Yau periods, String Amplitudes and D-Modules, are scheduled to serve as a conceptual bridge between the expert overview and the participants’ talks.

For further details about the workshop, including a preliminary list of speakers (the webpage is still being updated), and information on registration, please look at the website.