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UID:2140@qft.physik.hu-berlin.de
DTSTART;TZID=Europe/Berlin:20240619T133000
DTEND;TZID=Europe/Berlin:20240619T143000
DTSTAMP:20240614T074852Z
URL:https://qft.physik.hu-berlin.de/next-seminars/lara-bohnenblust-on-tba/
SUMMARY:Lara Bohnenblust on "Gravitational Waveforms for Scattering Binarie
 s" - 
DESCRIPTION:Speaker: Lara Bohnenblust\n\nTitle: Gravitational Waveforms for
  Scattering Binaries\n\nAbstract: Future missions to detect gravitational 
 waves will operate at higher sensitivity and cover a wide range of frequen
 cies. This advancements will enable the detection of new types of systems\
 , such as hyperbolic encounters and high-spin sources\, requiring new theo
 retical predictions of gravitational waveforms. One suitable method for th
 ese predictions is the post-Minkowskian expansion. In my talk\, I will pre
 sent the recent calculation of the next-to-leading order post-Minkowskian 
 waveform\, including linear-in-spin corrections. The result is obtained fr
 om five point one-loop scattering amplitudes involving massive scalars\, v
 ectors\, and a graviton and computations are performed in the numerical un
 itarity framework. Special emphasize is put on the treatment of the "cut t
 erm" in the observable-based approach of Kosower\, Maybee and O’Connell.
  The result includes infrared (IR) and ultraviolet (UV) divergences and I 
 will explain their origin and their treatment to obtain a finite observabl
 e.\n\nThis talk will be in hybrid mode via zoom\, please contact the semin
 ar organisers to obtain the password.\n\nTo receive seminar announcements 
 via email\, please request a subscription to the mailing list qft-seminars
 -physics. This is done by sending an email to sympa@lists.hu-berlin.de wit
 h subject line "subscribe qft-seminars-physics FIRSTNAME LASTNAME".
CATEGORIES:Pizza Seminars
LOCATION:Room 1.221\, IRIS building\, Zum großen Windkanal 6\, Berlin\, 12
 489\, Germany
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Zum großen Windkanal 6\, B
 erlin\, 12489\, Germany;X-APPLE-RADIUS=100;X-TITLE=Room 1.221\, IRIS build
 ing:geo:0,0
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