24–27 Oct 2023
Università di Pisa - Dipartimento di Fisica
Europe/Rome timezone

Diagrammatic Effective Field Theory approach to coalescing binary systems in General Relativity and gravitational waves phenomenology

26 Oct 2023, 17:00
2h
Aula Magna - Dipartimento di Fisica (Università di Pisa - Dipartimento di Fisica)

Aula Magna - Dipartimento di Fisica

Università di Pisa - Dipartimento di Fisica

Largo Bruno Pontecorvo 3, I-56127, Pisa, Italy
Poster Contribution Poster Session

Speaker

Dr Matteo Pegorin (University of Padua)

Description

An accurate modeling of the gravitational waves emitted by coalescing binary systems, comprising black holes and neutron stars, is fundamental to fully leverage the capabilities of current and next-generation gravitational wave detectors.
In particular the inspiral phase of the binary system can be described using several approximation schemes, among which the post-Newtonian (PN) formalism.
In the last 20 years the evaluation of higher order post-Newtonian corrections has advanced further thanks to an Effective Field Theory approach and the application of multi-loop quantum field theory techniques. We study this modern approach, implementing the whole evaluation of conservative diagrams in a Mathematica code, which allows to compute also some conservative diagrams first appearing at 7PN order.
Then, employing a Fisher Information Matrix analysis, we forecast the constraints that the future space-based LISA interferometer will be able to provide regarding parametric deviations from the post-Newtonian theory.

Primary author

Dr Matteo Pegorin (University of Padua)

Presentation materials

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