Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Marco Niggetiedt"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-11 (2024)
Abstract We present the renormalization constant of the pseudoscalar operator defined with a non-anticommuting γ 5 in dimensional regularization up to four-loop order in perturbative Quantum Chromodynamics (QCD). Furthermore, by virtue of renormaliz
Externí odkaz:
https://doaj.org/article/821cc0565cd445cca52542bd4db607d2
Autor:
Ulrich Haisch, Marco Niggetiedt
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-11 (2024)
Abstract We compute the corrections to the two-loop amplitudes for gg → h, gg → hg, qg → hq, and q q ¯ $$ q\overline{q} $$ → hg due to a modified cubic Higgs self-coupling. The exact dependence on the Higgs and top-quark masses across the en
Externí odkaz:
https://doaj.org/article/e5d9059130ff40f99bb9b4da192e7c90
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-21 (2024)
Abstract We examine the effect of finite top- and bottom-quark masses on the Higgs production cross section in the gluon-gluon fusion channel. We employ both MS ¯ $$ \overline{\textrm{MS}} $$ and on-shell renormalisation for the quark masses and pro
Externí odkaz:
https://doaj.org/article/4fe095edd78e499da58659029758a3b7
Autor:
Marco Niggetiedt, Johann Usovitsch
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-19 (2024)
Abstract We report on the complete three-loop corrections to the Higgs-gluon form factor in QCD. While previous calculations are based on QCD with a single heavy quark of arbitrary mass, we extend the study to QCD involving two different massive quar
Externí odkaz:
https://doaj.org/article/8f2d944a677c4d3a8a46e0ca4ae0ee98
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-23 (2021)
Abstract It is well known that the effect of top quark loop corrections in the axial part of quark form factors (FF) does not decouple in the large top mass or low energy limit due to the presence of the axial-anomaly type diagrams. The top-loop indu
Externí odkaz:
https://doaj.org/article/dd0a7611c6e8490988d2dcfa9e2a13fb
Autor:
Marco Niggetiedt
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-20 (2021)
Abstract We follow up on our discussion of the exact quark-mass dependence of the Higgs-gluon form factor at three loops in QCD [1] and turn our attention to the closely related Higgs-photon form factor. Similarly to our previous work, we intend to e
Externí odkaz:
https://doaj.org/article/e6a744e72e6b4fbe8397743386ef945e
Autor:
Michał Czakon, Marco Niggetiedt
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 5, Pp 1-24 (2020)
Abstract We determine the three-loop form factor parameterising the amplitude for the production of an off-shell Higgs boson in gluon fusion in QCD with a single massive quark. The result is obtained via a numerical solution of a system of differenti
Externí odkaz:
https://doaj.org/article/c7ee10fea8fa442eb685e3bff2076a34
Autor:
Marco Niggetiedt, Michal Czakon
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2020, Iss 5, Pp 1-24 (2020)
Journal of high energy physics : JHEP 2020(5), 149 (2020). doi:10.1007/JHEP05(2020)149
Journal of High Energy Physics, Vol 2020, Iss 5, Pp 1-24 (2020)
Journal of high energy physics : JHEP 2020(5), 149 (2020). doi:10.1007/JHEP05(2020)149
We determine the three-loop form factor parameterising the amplitude for the production of an off-shell Higgs boson in gluon fusion in QCD with a single massive quark. The result is obtained via a numerical solution of a system of differential equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8e936456cd6291b3261716559e7a96d
http://arxiv.org/abs/2001.03008
http://arxiv.org/abs/2001.03008
