Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Federico Buccioni"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-30 (2024)
Abstract We compute the one-loop corrections to gg → $$t\overline{t }H$$ up to order $$\mathcal{O}\left({\epsilon }^{2}\right)$$ in the dimensional-regularization parameter. We apply the projector method to compute polarized amplitudes, which gener
Externí odkaz:
https://doaj.org/article/7cbdee1912c64550ac26c5c5b188e4a5
Autor:
Federico Buccioni, Federica Devoto, Abdelhak Djouadi, John Ellis, Jérémie Quevillon, Lorenzo Tancredi
Publikováno v:
Physics Letters B, Vol 851, Iss , Pp 138596- (2024)
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→H→Zγ induced by loops of heavy particles, which is by far
Externí odkaz:
https://doaj.org/article/faf6f4ce0f61474e944445db3960ed9d
Autor:
Piotr Bargieła, Federico Buccioni, Fabrizio Caola, Federica Devoto, Andreas von Manteuffel, Lorenzo Tancredi
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 2, Pp 1-15 (2023)
Abstract In this paper we consider signal-background interference effects in Higgs-mediated diphoton production at the LHC. After reviewing earlier works that show how to use these effects to constrain the Higgs boson total decay width, we provide pr
Externí odkaz:
https://doaj.org/article/4231b8d060f64d7887405f9c4255f359
Autor:
Federico Buccioni, Fabrizio Caola, Herschel A. Chawdhry, Federica Devoto, Matthias Heller, Andreas von Manteuffel, Kirill Melnikov, Raoul Röntsch, Chiara Signorile-Signorile
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-48 (2022)
Abstract We compute mixed QCD-electroweak corrections to the neutral-current Drell-Yan production of a pair of massless leptons in the high invariant mass region. Our computation is fully differential with respect to the final state particles. At rel
Externí odkaz:
https://doaj.org/article/ba0d20cc81a545f795948f5d446c1597
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 2, Pp 1-48 (2022)
Abstract The analytical expressions of the mixed QCD-EW corrections to on-shell Z boson inclusive production cross section at hadron colliders are presented, together with computational details. The results are given in terms of polylogarithmic funct
Externí odkaz:
https://doaj.org/article/4bdae16b50a240ae991c07e62b1185f3
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-22 (2021)
Abstract We present the leading colour and light fermionic planar two-loop corrections for the production of two photons and a jet in the quark-antiquark and quark-gluon channels. In particular, we compute the interference of the two-loop amplitudes
Externí odkaz:
https://doaj.org/article/89579ff32c834dc78982b49b1926f735
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-38 (2019)
Abstract Theoretical predictions for t t ¯ $$ \overline{t} $$ b b ¯ $$ \overline{b} $$ production are of crucial importance for t t ¯ $$ \overline{t} $$ H measurements in the H → b b ¯ $$ \overline{b} $$ channel at the LHC. To address the large
Externí odkaz:
https://doaj.org/article/20d1edb52e6b4dd0ae94e4b5cd4ff50d
Autor:
Federico Buccioni, Jean-Nicolas Lang, Jonas M. Lindert, Philipp Maierhöfer, Stefano Pozzorini, Hantian Zhang, Max F. Zoller
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 10, Pp 1-56 (2019)
Abstract We present the new version of OpenLoops, an automated generator of tree and one-loop scattering amplitudes based on the open-loop recursion. One main novelty of OpenLoops 2 is the extension of the original algorithm from NLO QCD to the full
Externí odkaz:
https://doaj.org/article/d8833a840bb146fc85edc51f0ddec084
Autor:
Federico Buccioni, Fabrizio Caola, Maximilian Delto, Matthieu Jaquier, Kirill Melnikov, Raoul Röntsch
Publikováno v:
Physics Letters B, Vol 811, Iss , Pp 135969- (2020)
We present the first complete calculation of mixed QCD-electroweak corrections to the production of on-shell Z bosons in hadron collisions and their decays to massless charged leptons. Our computation is fully differential with respect to final state
Externí odkaz:
https://doaj.org/article/87c901fa0cd64cff809d013c11ed6ff6
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 1, Pp 1-35 (2018)
Abstract Building on the open-loop algorithm we introduce a new method for the automated construction of one-loop amplitudes and their reduction to scalar integrals. The key idea is that the factorisation of one-loop integrands in a product of loop s
Externí odkaz:
https://doaj.org/article/9577354bc10d4584988372c48919c9ed