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SUMMARY:Scattering Amplitudes from Intersection Theory
DTSTART;VALUE=DATE-TIME:20190425T120000Z
DTEND;VALUE=DATE-TIME:20190425T140000Z
DTSTAMP;VALUE=DATE-TIME:20190522T012102Z
UID:indico-event-812354@indico.cern.ch
DESCRIPTION:It has been long known that intersection theory on the moduli
space of punctured Riemann surfaces encodes observables in two-dimensional
quantum gravity. It is natural to ask whether interacting theories could
also admit a similar description. In the genus-zero case we put forward a
twisted version of intersection theory on the moduli space and propose tha
t it computes tree-level scattering amplitudes in a range of quantum field
theories in general space-time dimension. After outlining their universal
properties and relations to the low-energy limit of string theory amplitu
des\, we present recursion relations for intersection numbers on the natur
al fibration of moduli spaces.\n\nhttps://indico.cern.ch/event/812354/
LOCATION:CERN 4-3-006 - TH Conference Room
URL:https://indico.cern.ch/event/812354/
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