QCD on Emanuele Bagnaschi's home page https://www.bagnaschi.eu/tags/qcd/ Recent content in QCD on Emanuele Bagnaschi's home page Hugo -- gohugo.io en Sun, 29 Nov 2020 15:48:20 +0100 Full two-loop QCD corrections to the Higgs mass in the MSSM with heavy superpartners https://www.bagnaschi.eu/science/articles/mh_2l_qcd/ Sun, 29 Nov 2020 15:48:20 +0100 https://www.bagnaschi.eu/science/articles/mh_2l_qcd/ Emanuele Bagnaschi (PSI, Villigen), Giuseppe Degrassi (INFN, Rome and Rome U.), Sebastian Paßehr (Paris, LPTHE), Pietro Slavich (Paris, LPTHE) Eur.Phys.J.C 79 (2019) 11, 910 DOI: 10.1140/epjc/s10052-019-7417-9 e-print: 1908.01670 [hep-ph] We improve the determination of the Higgs-boson mass in the MSSM with heavy superpartners, by computing the two-loop threshold corrections to the quartic Higgs coupling that involve both the strong and the electroweak gauge couplings. Combined with earlier results, this completes the calculation of the two-loop QCD corrections to the quartic coupling at the SUSY scale. An extensive survey of the estimation of uncertainties from missing higher orders in perturbative calculations https://www.bagnaschi.eu/science/articles/mhous/ Sun, 23 Aug 2020 20:06:59 +0200 https://www.bagnaschi.eu/science/articles/mhous/ Emanuele Bagnaschi (Diderot U., Paris and Paris, LPTHE and DESY), Matteo Cacciari (Diderot U., Paris and Paris, LPTHE), Alberto Guffanti (Bohr Inst.), Laura Jenniches (Bohr Inst. and Wurzburg U.) JHEP 02 (2015) 133 DOI: 10.1007/JHEP02(2015)133 e-print: arXiv: 1409.5036 [hep-ph] We consider two approaches to estimate and characterise the theoretical uncertainties stemming from the missing higher orders in perturbative calculations in Quantum Chromodynamics: the traditional one based on renormalisation and factorisation scale variation, and the Bayesian framework proposed by Cacciari and Houdeau.