Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Dlapa, Christoph"'
Leveraging scattering information to describe binary systems in generic orbits requires identifying local- and nonlocal-in-time tail effects. We report here the derivation of the universal (non-spinning) local-in-time conservative dynamics at fourth
Externí odkaz:
http://arxiv.org/abs/2403.04853
We provide evidence through two loops, that rational letters of polylogarithmic Feynman integrals are captured by the Landau equations, when the latter are recast as a polynomial of the kinematic variables of the integral, known as the principal $A$-
Externí odkaz:
http://arxiv.org/abs/2304.02629
We describe the formalism to compute gravitational-wave observables for compact binaries via the effective field theory framework in combination with modern tools from collider physics. We put particular emphasis on solving the "multi-loop" integrati
Externí odkaz:
http://arxiv.org/abs/2304.01275
In recent years, differential equations have become the method of choice to compute multi-loop Feynman integrals. Whenever they can be cast into canonical form, their solution in terms of special functions is straightforward. Recently, progress has b
Externí odkaz:
http://arxiv.org/abs/2211.16357
We obtain the total impulse in the scattering of non-spinning binaries in general relativity at fourth Post-Minkowskian order, i.e. ${\cal O}(G^4)$, including linear, nonlinear, and hereditary radiation-reaction effects. We derive the total radiated
Externí odkaz:
http://arxiv.org/abs/2210.05541
We compute the conservative dynamics of non-spinning binaries at fourth Post-Minkowskian order in the large-eccentricity limit, including both potential and radiation-reaction tail effects. This is achieved by obtaining the scattering angle in the wo
Externí odkaz:
http://arxiv.org/abs/2112.11296
Dynamics of Binary Systems to Fourth Post-Minkowskian Order from the Effective Field Theory Approach
We present the contribution from potential interactions to the dynamics of non-spinning binaries to fourth Post-Minkowskian (4PM) order. This is achieved by computing the scattering angle to ${\cal O}(G^4)$ using the effective field theory approach a
Externí odkaz:
http://arxiv.org/abs/2106.08276
We provide a leading singularity analysis protocol in Baikov representation, for the searching of Feynman integrals with uniform transcendental (UT) weight. This approach is powered by the recent developments in rationalizing square roots and syzygy
Externí odkaz:
http://arxiv.org/abs/2103.04638
Publikováno v:
Phys. Rev. Lett. 126, 021601 (2021)
The angle-dependent cusp anomalous dimension governs divergences coming from soft gluon exchanges between heavy particles, such as top quarks. We focus on the matter-dependent contributions and compute the first truly non-planar terms. They appear at
Externí odkaz:
http://arxiv.org/abs/2007.04851
Differential equations are a powerful tool for evaluating Feynman integrals. Their solution is straightforward if a transformation to a canonical form is found. In this paper, we present an algorithm for finding such a transformation. This novel tech
Externí odkaz:
http://arxiv.org/abs/2002.02340