Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Fabrizio Caola"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-26 (2024)
Abstract We present a calculation of the bosonic contribution to the two-loop mixed QCD-electroweak scattering amplitudes for Z-boson production in association with one hard jet at hadron colliders. We employ a method to calculate amplitudes in the
Externí odkaz:
https://doaj.org/article/8bc19923542f451f8d769e643cf23225
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
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-26 (2022)
Abstract We compute the three-loop helicity amplitudes for q q ¯ $$ q\overline{q} $$ → gg and its crossed partonic channels, in massless QCD. Our analytical results provide a non-trivial check of the color quadrupole contribution to the infrared p
Externí odkaz:
https://doaj.org/article/4f04c3d5d45b4870960ca0794d3a027b
Autor:
Fabrizio Caola, Silvia Ferrario Ravasio, Giovanni Limatola, Kirill Melnikov, Paolo Nason, Melih Arslan Ozcelik
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-70 (2022)
Abstract We use an abelian model to study linear power corrections which arise from infrared renormalons and affect event shapes in e + e − annihilation into hadrons. While previous studies explored power corrections in the two-jet region, in this
Externí odkaz:
https://doaj.org/article/41540deb56cd489cb414887b3c95200c
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 1-27 (2022)
Abstract We compute the next-to-next-to-leading order QCD corrections to Higgs boson production in weak boson fusion followed by its decay to a b b ¯ $$ \overline{b} $$ pair or to a pair of leptonically-decaying W bosons. Our calculation allows us t
Externí odkaz:
https://doaj.org/article/a2617c00e937455c9debb00d1b04d10d
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 2, Pp 1-20 (2022)
Abstract We present a calculation of the helicity amplitudes for the process gg → γγ in three-loop massless QCD. We employ a recently proposed method to calculate scattering amplitudes in the ’t Hooft-Veltman scheme that reduces the amount of s
Externí odkaz:
https://doaj.org/article/e8901df98ccc400696026e22f80f3a58
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-53 (2022)
Abstract We study linear power corrections O $$ \mathcal{O} $$ (ΛQCD /Q) to certain collider observables. We present arguments that prove that such corrections cannot appear in observables that are inclusive with respect to QCD radiation, such as to
Externí odkaz:
https://doaj.org/article/36cf846e62e046979485df24faf82da4
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-33 (2021)
Abstract We compute the three-loop corrections to the helicity amplitudes for q q ¯ $$ \overline{q} $$ → Q Q ¯ $$ \overline{Q} $$ scattering in massless QCD. In the Lorentz decomposition of the scattering amplitude we avoid evanescent Lorentz str
Externí odkaz:
https://doaj.org/article/d505611966084906a4c4627146338ef1
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-36 (2021)
Abstract Top-quark pair production is central to many facets of LHC physics. At leading order, the top and anti-top are produced in a back-to-back topology, however this topology accounts only for a minority of the events with TeV-scale momentum tran
Externí odkaz:
https://doaj.org/article/5a692f1deb8b4f79ba4961a0c9294442