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97 papers · 1 filter
Ansätze for Scattering Amplitudes from -adic Numbers and Algebraic Geometry
Giuseppe De Laurentis, Ben Page
Rational coefficients of special functions in scattering amplitudes are known to simplify on singular surfaces, often diverging less strongly than the naïve expectation. To systema…
Scale and Conformal Invariance in Higher Derivative Shift Symmetric Theories
Mahmoud Safari, Andreas Stergiou, Gian Paolo Vacca +1
The critical behavior of infinite families of shift symmetric interacting theories with higher derivative kinetic terms (non unitary) is considered. Single scalar theories with shi…
Radiative Classical Gravitational Observables at from Scattering Amplitudes
Enrico Herrmann, Julio Parra-Martinez, Michael S. Ruf +1
We compute classical gravitational observables for the scattering of two spinless black holes in general relativity and supergravity in the formalism of Kosower,…
Non-perturbative quantum Galileon in the exact renormalization group
Christian F. Steinwachs
We investigate the non-perturbative renormalization group flow of the scalar Galileon model in flat space. We discuss different expansion schemes of the Galileon truncation, includ…
Gravitational Bremsstrahlung from Reverse Unitarity
Enrico Herrmann, Julio Parra-Martinez, Michael S. Ruf +1
We compute the total radiated momentum carried by gravitational waves during the scattering of two spinless black holes at the lowest order in Newton's constant, ,…
Scattering Amplitudes and Conservative Binary Dynamics at
Zvi Bern, Julio Parra-Martinez, Radu Roiban +4
Using scattering amplitudes, we obtain the potential contributions to conservative binary dynamics in general relativity at fourth post-Minkowskian order, . As in pr…