Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Alessandro Broggio"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-42 (2023)
Abstract We present a factorization theorem of the partonic Drell-Yan off-diagonal processes g q ¯ qg → γ ∗ + X $$ g\overline{q}(qg)\to {\gamma}^{\ast }+X $$ in the kinematic threshold regime z = Q 2 / s ̂ → 1 $$ z={Q}^2/\hat{s}\to 1 $$ at g
Externí odkaz:
https://doaj.org/article/f8876ec5ba2b441eaff421cc313ee7b7
Autor:
Simone Alioli, Georgios Billis, Alessandro Broggio, Alessandro Gavardi, Stefan Kallweit, Matthew A. Lim, Giulia Marinelli, Riccardo Nagar, Davide Napoletano
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-32 (2023)
Abstract In this work, we study the production of Higgs boson pairs at next-to-next-to-leading order in QCD matched to parton showers, using the Geneva framework and working in the heavy-top-limit approximation. This includes the resummation of large
Externí odkaz:
https://doaj.org/article/ef8c589739014f04b0deda6788e96bd7
Autor:
Simone Alioli, Georgios Billis, Alessandro Broggio, Alessandro Gavardi, Stefan Kallweit, Matthew A. Lim, Giulia Marinelli, Riccardo Nagar, Davide Napoletano
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-39 (2023)
Abstract We describe a number of improvements to the Geneva method for matching NNLO calculations to parton shower programs. In particular, we detail changes to the resummed calculation used in the matching procedure, including disentangling the cros
Externí odkaz:
https://doaj.org/article/ef8b0350f1e04d89846584d5941989d1
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-40 (2022)
Abstract We study the resummation of the 0-jettiness resolution variable T $$ \mathcal{T} $$ 0 for the top-quark pair production process in hadronic collisions. Starting from an effective theory framework we derive a factorisation formula for this ob
Externí odkaz:
https://doaj.org/article/fd2f6a23cd87451a93676fa32842010a
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-31 (2021)
Abstract We calculate the generalized soft functions at O $$ \mathcal{O} $$ ( α s 2 $$ {\alpha}_s^2 $$ ) at next-to-leading power accuracy for the Drell-Yan process at threshold. The operator definitions of these objects contain explicit insertions
Externí odkaz:
https://doaj.org/article/d89286505fea4f1eb7fef9d4b082f73f
Autor:
Simone Alioli, Alessandro Broggio, Alessandro Gavardi, Stefan Kallweit, Matthew A. Lim, Riccardo Nagar, Davide Napoletano, Luca Rottoli
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-47 (2021)
Abstract We present a new calculation for the production of isolated photon pairs at the LHC with NNLL T 0 ′ $$ {\mathrm{NNLL}}_{{\mathcal{T}}_0}^{\prime } $$ +NNLO accuracy. This is the first implementation within the Geneva Monte Carlo framework
Externí odkaz:
https://doaj.org/article/453a337ecd4d464ea84651b95ec1e4a3
Autor:
Simone Alioli, Alessandro Broggio, Alessandro Gavardi, Stefan Kallweit, Matthew A. Lim, Riccardo Nagar, Davide Napoletano, Luca Rottoli
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-33 (2021)
Abstract We present the NNLL′ resummed 2-jettiness distribution for decays of the Standard Model Higgs boson to a b b ¯ $$ \overline{b} $$ -quark pair and to gluons. The calculation exploits a factorisation formula derived using Soft-Collinear Eff
Externí odkaz:
https://doaj.org/article/3306d755d8eb4d1f81bdd75cfdc65764
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 7, Pp 1-51 (2020)
Abstract We present a factorization theorem valid near the kinematic threshold z = Q 2 / s ̂ → 1 $$ z={Q}^2/\hat{s}\to 1 $$ of the partonic Drell-Yan process q q ¯ → γ ∗ + X $$ q\overline{q}\to {\gamma}^{\ast }+X $$ for general subleading po
Externí odkaz:
https://doaj.org/article/deb52532b09f46cbb421f2cc6e455f95
Autor:
Simone Alioli, Alessandro Broggio, Alessandro Gavardi, Stefan Kallweit, Matthew A. Lim, Riccardo Nagar, Davide Napoletano
Publikováno v:
Physics Letters B, Vol 818, Iss , Pp 136380- (2021)
We present a novel next-to-next-to-leading order (NNLO) QCD calculation matched to parton shower for the production of a pair of Z bosons decaying to four massless leptons, pp→ℓ+ℓ−ℓ′+ℓ′−+X, at the LHC. Spin correlations, interferenc
Externí odkaz:
https://doaj.org/article/28f26439161e40d783a9d5adf1b0dbcc
Autor:
Alessandro Broggio, Andrea Ferroglia, Rikkert Frederix, Davide Pagani, Benjamin D. Pecjak, Ioannis Tsinikos
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 8, Pp 1-46 (2019)
Abstract This work studies the associated production of a top-quark pair with a W, Z, or Higgs boson at the LHC. Predictions for the total cross sections as well as for several differential distributions of the massive particles in the final state ar
Externí odkaz:
https://doaj.org/article/583a13cc0acb46d6812655b53bba3d03