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SUMMARY:Geometry in Scattering Amplitudes
DTSTART:20241111T140000
DTEND:20241111T150000
DTSTAMP:20260410T152244Z
UID:773c58e82597241028ddf5b3ee613444764db365948a7754a20114d5
CATEGORIES:Conferences - Seminars
DESCRIPTION:Andreas Helset\nThe geometry of field space governs on-shell s
 cattering amplitudes. We formulate a geometric description of effective fi
 eld theories with scalars\, fermions\, and gauge bosons. The field-space g
 eometry simplifies the computation of quantum loop corrections. Using this
  geometric framework\, we calculate the one-loop contributions to the reno
 rmalization group equations for the Standard Model Effective Field Theory 
 up to mass dimension eight. We also derive novel relations between scatter
 ing amplitudes. The soft limit of amplitudes with a massless scalar is cap
 tured by a geometric soft theorem. Also\, scattering amplitudes for Goldst
 one bosons with nonsymmetric cosets exhibit a duality between curvature an
 d kinematics\, analogous to the color-kinematics duality for Goldstone bos
 ons with symmetric cosets.
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727 https://epfl.zoom.u
 s/j/69362612859
STATUS:CONFIRMED
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