Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Badger, Simon"'
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
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:
Badger, Simon
We present the status of on-going efforts to compute the two-loop virtual corrections to $pp\to t\bar{t} j$ in the leading colour approximation. We review the recent study of the master integrals and their differential equations and present some idea
Externí odkaz:
http://arxiv.org/abs/2405.10613
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
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
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
Autor:
Badger, Simon, Czakon, Michal, Hartanto, Heribertus Bayu, Moodie, Ryan, Peraro, Tiziano, Poncelet, Rene, Zoia, Simone
In this work, we provide a comprehensive set of differential cross-section distributions for photon + di-jet production in proton-proton collisions with next-to-next-to-leading order precision in massless QCD. The event selection corresponds to recen
Externí odkaz:
http://arxiv.org/abs/2304.06682
We consider the case of a two-loop five-point pentagon-box integral configuration with one internal massive propagator that contributes to top-quark pair production in association with a jet at hadron colliders. We construct the system of differentia
Externí odkaz:
http://arxiv.org/abs/2210.17477
Evaluating loop amplitudes is a time-consuming part of LHC event generation. For di-photon production with jets we show that simple, Bayesian networks can learn such amplitudes and model their uncertainties reliably. A boosted training of the Bayesia
Externí odkaz:
http://arxiv.org/abs/2206.14831
Autor:
Butter, Anja, Plehn, Tilman, Schumann, Steffen, Badger, Simon, Caron, Sascha, Cranmer, Kyle, Di Bello, Francesco Armando, Dreyer, Etienne, Forte, Stefano, Ganguly, Sanmay, Gonçalves, Dorival, Gross, Eilam, Heimel, Theo, Heinrich, Gudrun, Heinrich, Lukas, Held, Alexander, Höche, Stefan, Howard, Jessica N., Ilten, Philip, Isaacson, Joshua, Janßen, Timo, Jones, Stephen, Kado, Marumi, Kagan, Michael, Kasieczka, Gregor, Kling, Felix, Kraml, Sabine, Krause, Claudius, Krauss, Frank, Kröninger, Kevin, Barman, Rahool Kumar, Luchmann, Michel, Magerya, Vitaly, Maitre, Daniel, Malaescu, Bogdan, Maltoni, Fabio, Martini, Till, Mattelaer, Olivier, Nachman, Benjamin, Pitz, Sebastian, Rojo, Juan, Schwartz, Matthew, Shih, David, Siegert, Frank, Stegeman, Roy, Stienen, Bob, Thaler, Jesse, Verheyen, Rob, Whiteson, Daniel, Winterhalder, Ramon, Zupan, Jure
Publikováno v:
SciPost Phys. 14, 079 (2023)
First-principle simulations are at the heart of the high-energy physics research program. They link the vast data output of multi-purpose detectors with fundamental theory predictions and interpretation. This review illustrates a wide range of applic
Externí odkaz:
http://arxiv.org/abs/2203.07460