Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Zoia, Simone"'
We present the two-loop helicity amplitudes contributing to the next-to-next-to-leading order QCD predictions for W-boson production in association with two photons at the Large Hadron Collider. We derived compact analytic expressions for the two-loo
Externí odkaz:
http://arxiv.org/abs/2409.08146
We consider the complete set of planar two-loop five-point Feynman integrals with two off-shell external legs. These integrals are relevant, for instance, for the calculation of the second-order QCD corrections to the production of two heavy vector b
Externí odkaz:
http://arxiv.org/abs/2408.05201
This open access book bridges a gap between introductory Quantum Field Theory (QFT) courses and state-of-the-art research in scattering amplitudes. It covers the path from basic definitions of QFT to amplitudes, which are relevant for processes in th
Externí odkaz:
https://library.oapen.org/handle/20.500.12657/86864
Autor:
Zoia, Simone
I present the computation of the two-loop amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon in massless QED. We apply modern techniques developed to tackle QCD amplitudes with many scales: we express the Feynman
Externí odkaz:
http://arxiv.org/abs/2405.08750
We compute the differential equations for the two remaining integral topologies contributing to the leading colour two-loop amplitudes for $pp \rightarrow t\bar{t}j$. We derive differential equations for the master integrals by solving the integratio
Externí odkaz:
http://arxiv.org/abs/2404.12325
Publikováno v:
JHEP 07 (2024) 124
We perform an exploratory study of a new approach for evaluating Feynman integrals numerically. We apply the recently-proposed framework of physics-informed deep learning to train neural networks to approximate the solution to the differential equati
Externí odkaz:
http://arxiv.org/abs/2312.02067
Autor:
Zoia, Simone
I discuss the recent advances in the computation of two-loop scattering amplitudes for five-particle processes. The latter are fundamental ingredients to obtain predictions at the next-to-next-to-leading order (NNLO) in QCD for many interesting LHC p
Externí odkaz:
http://arxiv.org/abs/2310.04275
We compute the two-loop QED helicity amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon, $0\to\ell\bar\ell\gamma\gamma^*$, using the approximation of massless leptons. We express all master integrals relevant for
Externí odkaz:
http://arxiv.org/abs/2307.03098
Autor:
Abreu, Samuel, Chicherin, Dmitry, Ita, Harald, Page, Ben, Sotnikov, Vasily, Tschernow, Wladimir, Zoia, Simone
We compute the complete set of two-loop master integrals for the scattering of four massless particles and a massive one. Our results are ready for phenomenological applications, removing a major obstacle to the computation of complete next-to-next-t
Externí odkaz:
http://arxiv.org/abs/2306.15431
These lecture notes bridge a gap between introductory quantum field theory (QFT) courses and state-of-the-art research in scattering amplitudes. They cover the path from basic definitions of QFT to amplitudes relevant for processes in the Standard Mo
Externí odkaz:
http://arxiv.org/abs/2306.05976