Zobrazeno 1 - 10
of 246
pro vyhledávání: '"Tancredi, Lorenzo"'
We compute the electron self-energy in Quantum Electrodynamics to three loops in terms of iterated integrals over kernels of elliptic type. We make use of the differential equations method, augmented by an $\epsilon$-factorized basis, which allows us
Externí odkaz:
http://arxiv.org/abs/2408.05154
Autor:
Buccioni, Federico, Devoto, Federica, Djouadi, Abdelhak, Ellis, John, Quevillon, Jérémie, Tancredi, Lorenzo
Publikováno v:
Physics Letters B, Volume 851, April 2024, 138596
The ATLAS and CMS collaborations at the LHC have recently announced evidence for the rare Higgs boson decay into a $Z$ boson and a photon. We analyze the interference between the process $gg\! \to \! H \! \to \! Z \gamma$ induced by loops of heavy pa
Externí odkaz:
http://arxiv.org/abs/2312.12384
We compute the one-loop corrections to \tth up to order $\mathcal{O}(\epsilon^2)$ in the dimensional regularization parameter. We apply the projector method to compute polarized amplitudes, which generalize massless helicity amplitudes to the massive
Externí odkaz:
http://arxiv.org/abs/2312.10015
Autor:
Agarwal, Bakul, Buccioni, Federico, Devoto, Federica, Gambuti, Giulio, von Manteuffel, Andreas, Tancredi, Lorenzo
We compute all helicity amplitudes for the scattering of five partons in two-loop QCD in all the relevant flavor configurations, retaining all contributing color structures. We employ tensor projection to obtain helicity amplitudes in the 't Hooft-Ve
Externí odkaz:
http://arxiv.org/abs/2311.09870
We study two-loop corrections to the scattering amplitude of four massive leptons in quantum electrodynamics. These amplitudes involve previously unknown elliptic Feynman integrals, which we compute analytically using the differential equation method
Externí odkaz:
http://arxiv.org/abs/2311.06385
We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson $V=Z,W^\pm,\gamma^*$, two quarks and a gluon. These amplitudes are relevant to vector-boson-plus-jet production at hadron co
Externí odkaz:
http://arxiv.org/abs/2307.15405
We compute the two-loop Quantum Chromodynamics (QCD) corrections to all partonic channels relevant for the production of an electroweak boson $V=Z,W^\pm,\gamma^*$ and a jet at hadron colliders. We consider the decay of a vector boson $V$ to three par
Externí odkaz:
http://arxiv.org/abs/2306.10170
In this manuscript, we elaborate on a procedure to derive $\epsilon$-factorised differential equations for multi-scale, multi-loop classes of Feynman integrals that evaluate to special functions beyond multiple polylogarithms. We demonstrate the appl
Externí odkaz:
http://arxiv.org/abs/2305.14090
Publikováno v:
J. High Energ. Phys. 2023, 16 (2023)
In view of the forthcoming High-Luminosity phase of the LHC, next-to-next-to-next-to-leading (N$^3$LO) calculations for the most phenomenologically relevant processes become necessary. In this work, we take the first step towards this goal for H$+$je
Externí odkaz:
http://arxiv.org/abs/2301.10849
We present for the first time fully analytic results for multi-loop equal-mass ice cone graphs in two dimensions. By analysing the leading singularities of these integrals, we find that the maximal cuts in two dimensions can be organised into two cop
Externí odkaz:
http://arxiv.org/abs/2212.09550