Name: Infrared Surprises of Scattering Amplitudes
Start: 2025-05-12T08:30:00+02:00
End: 2025-05-16T17:30:00+02:00
Location: CERN

Infrared Surprises of Scattering Amplitudes

from Monday 12 May 2025 (08:30) to Friday 16 May 2025 (17:30)

Monday 12 May 2025
09:30 Soft theorems from higher symmetries - Julio Parra-Martinez (IHES)
Soft theorems from higher symmetries
- Julio Parra-Martinez (IHES)
09:30 - 10:30
Room: 4/3-006 - TH Conference Room
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: 4/2-011 - TH common room
11:00 Overview talk: SCET and Soft Theorems - Patrick Angus Hager (MITP, Johannes Gutenberg University Mainz)
Overview talk: SCET and Soft Theorems
- Patrick Angus Hager (MITP, Johannes Gutenberg University Mainz)
11:00 - 12:00
Room: 4/3-006 - TH Conference Room
12:00 Lunch break
Lunch break
12:00 - 14:00
15:30 Discussion: TQFT Surprises of Scattering Amplitudes - Christian Copetti (Mathematical Insitute, University of Oxford) Ho Tat Lam (Massachusetts Institute of Technology)
Discussion: TQFT Surprises of Scattering Amplitudes
- Christian Copetti (Mathematical Insitute, University of Oxford)
- Ho Tat Lam (Massachusetts Institute of Technology)
15:30 - 16:30
Room: 4/3-006 - TH Conference Room
18:00 Reception
Reception
18:00 - 19:00
Room: CERN Restaurant 1 (building 501)
Tuesday 13 May 2025
09:30 Gravity as a phase of matter - Gregoire Olivier Mathys (EPFL - Ecole Polytechnique Federale Lausanne (CH))
Gravity as a phase of matter
- Gregoire Olivier Mathys (EPFL - Ecole Polytechnique Federale Lausanne (CH))
09:30 - 10:30
Room: 4/3-006 - TH Conference Room
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: 4/2-011 - TH common room
11:00 Soft Scalars in Effective Field Theory - Maria Derda (Caltech)
Soft Scalars in Effective Field Theory
- Maria Derda (Caltech)
11:00 - 12:00
Room: 4/3-006 - TH Conference Room
12:00 Lunch break
Lunch break
12:00 - 14:00
14:00 Discussion: Perturbative IR divergences in massless gauge theory - Lorenzo Magnea (University of Torino) Lance Dixon (SLAC/Stanford University)
Discussion: Perturbative IR divergences in massless gauge theory
- Lorenzo Magnea (University of Torino)
- Lance Dixon (SLAC/Stanford University)
14:00 - 15:00
Room: 4/3-006 - TH Conference Room
Wednesday 14 May 2025
09:30 Overview talk: Amplitudes, Waveforms, and Supertranslations - Donal O'Connell (University of Edinburgh)
Overview talk: Amplitudes, Waveforms, and Supertranslations
- Donal O'Connell (University of Edinburgh)
09:30 - 10:30
Room: 4/3-006 - TH Conference Room
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: 4/2-011 - TH common room
11:00 Gravitational soft theorems and soft spectra - Carlo Heissenberg (Uppsala University and Nordita)
Gravitational soft theorems and soft spectra
- Carlo Heissenberg (Uppsala University and Nordita)
11:00 - 12:00
Room: 4/3-006 - TH Conference Room
12:00 Lunch break
Lunch break
12:00 - 14:00
14:00 Rigorous approaches to non-perturbative scattering amplitudes, correlators and partition functions (TH colloquium) - Balt van Rees (Ecole Polytechnique, Paris)
Rigorous approaches to non-perturbative scattering amplitudes, correlators and partition functions (TH colloquium)
- Balt van Rees (Ecole Polytechnique, Paris)
14:00 - 15:00
Room: 4/3-006 - TH Conference Room
Thursday 15 May 2025
09:30 Overview talk: Infrared surprises in gravity and celestial CFT - Andrea Puhm (University of Amsterdam)
Overview talk: Infrared surprises in gravity and celestial CFT
- Andrea Puhm (University of Amsterdam)
09:30 - 10:30
Room: 4/3-006 - TH Conference Room
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: 4/2-011 - TH common room
11:00 Electromagnetic and Gravitational wave tails from Soft Theorem - Biswajit Sahoo (King's College London)
Electromagnetic and Gravitational wave tails from Soft Theorem
- Biswajit Sahoo (King's College London)
11:00 - 12:00
Room: 4/3-006 - TH Conference Room
12:00 Lunch break
Lunch break
12:00 - 14:00
14:00 Discussion: BMS particles for an infrared finite S-matrix - Laura Donnay (SISSA)
Discussion: BMS particles for an infrared finite S-matrix
- Laura Donnay (SISSA)
14:00 - 15:00
Room: 4/3-006 - TH Conference Room
Friday 16 May 2025
09:30 Bound-Unbound Universality and the All-Order Semi-Classical Wave Function in Schwarzschild - Ofri Telem (The Hebrew University of Jerusalem)
Bound-Unbound Universality and the All-Order Semi-Classical Wave Function in Schwarzschild
- Ofri Telem (The Hebrew University of Jerusalem)
09:30 - 10:30
Room: 4/3-006 - TH Conference Room
10:30 Coffee break
Coffee break
10:30 - 11:00
Room: 4/2-011 - TH common room
11:00 Surprise! It’s Fermion-Monopole Scattering! - Rishi Mouland (Imperial College London)
Surprise! It’s Fermion-Monopole Scattering!
- Rishi Mouland (Imperial College London)
11:00 - 12:00
Room: 4/3-006 - TH Conference Room
12:00 Lunch break
Lunch break
12:00 - 14:00
14:00 Analytic properties of infrared-finite amplitudes in theories with long-range forces - Luke Lippstreu (University of Edinburgh)
Analytic properties of infrared-finite amplitudes in theories with long-range forces
- Luke Lippstreu (University of Edinburgh)
14:00 - 15:00
Room: 4/3-006 - TH Conference Room

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