BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:PJC: Emanuele Rosi "Classical two-body gravitational scattering at
  high energies: an EFT perspective"
DTSTART:20260507T113000Z
DTEND:20260507T133000Z
DTSTAMP:20260506T174600Z
UID:indico-event-52209@agenda.infn.it
DESCRIPTION:I present a short review of the two-body problem in general re
 lativity\, focusing on the scattering scenario in the high-energy limit.Af
 ter discussing some of the relevant perturbative expansions\, I will go in
 to detail on the Post-Minkowskian (PM) approximation\, aka the weak-field 
 expansion. In this framework\, two classes of Effective Field Theories (EF
 Ts) have been developed: one based on quantum scattering amplitudes in the
  classical limit\, and one based on worldline operators. Both approaches r
 esult very simplified in the high-energy regime\, where graviton modes fac
 torise\, enabling calculations at higher PM orders. On the other hand\, th
 eoretical challenges — such as the non-perturbativity in Newton's consta
 nt — must be addressed. Finally\, I present the "Self-Force EFT"\, which
  can be suited to treat the high-energy scattering problem in a strong-fie
 ld regime.\n\nhttps://agenda.infn.it/event/52209/
LOCATION:Sala Touschek
URL:https://agenda.infn.it/event/52209/
END:VEVENT
END:VCALENDAR