https://www.bagnaschi.eu/tags/higgs-mass/ Recent content in higgs-mass on Emanuele Bagnaschi's home page Hugo -- gohugo.io en Sun, 29 Nov 2020 15:48:20 +0100 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. https://www.bagnaschi.eu/science/articles/mh_susy/ Sun, 29 Nov 2020 15:41:03 +0100 https://www.bagnaschi.eu/science/articles/mh_susy/ E. Bagnaschi (PSI, Villigen), H. Bahl (Munich, Max Planck Inst.), J. Ellis (King’s Coll. London and NICPB, Tallinn and CERN), J. Evans (Korea Inst. Advanced Study, Seoul), T. Hahn (Munich, Max Planck Inst.), S. Heinemeyer (Madrid, IFT and Cantabria Inst. of Phys.), W. Hollik (Munich, Max Planck Inst.), K.A. Olive (Minnesota U., Theor. Phys. Inst.), S. Paßehr (Paris, LPTHE), H. Rzehak (Southern Denmark U., CP3-Origins), I.V. Sobolev (DESY), G. Weiglein (DESY), J. https://www.bagnaschi.eu/science/articles/mh_improved/ Sun, 29 Nov 2020 15:01:15 +0100 https://www.bagnaschi.eu/science/articles/mh_improved/ Emanuele Bagnaschi (DESY), Javier Pardo Vega (ICTP, Trieste and INFN, Trieste and SISSA, Trieste), Pietro Slavich (Paris, LPTHE and UPMC, Paris (main)) Eur.Phys.J.C 77 (2017) 5, 334 DOI: 10.1140/epjc/s10052-017-4885-7 e-Print: 1703.08166 [hep-ph] We present several advances in the effective field theory calculation of the Higgs mass in MSSM scenarios with heavy superparticles. In particular, we compute the dominant two-loop threshold corrections to the quartic Higgs coupling for generic values of the relevant SUSY-breaking parameters, including all contributions controlled by the strong gauge coupling and by the third-family Yukawa couplings. https://www.bagnaschi.eu/science/articles/vacuum_susy/ Sun, 29 Nov 2020 14:08:56 +0100 https://www.bagnaschi.eu/science/articles/vacuum_susy/ Emanuele Bagnaschi (DESY), Felix Brümmer (Montpellier U.), Wilfried Buchmüller (DESY), Alexander Voigt (DESY), Georg Weiglein (DESY) JHEP 03 (2016) 158 DOI: 10.1007/JHEP03(2016)158 e-print: 1512.07761 [hep-ph] We investigate the stability of the electroweak vacuum for two-Higgs-doublet models with a supersymmetric UV completion. The supersymmetry breaking scale is taken to be of the order of the grand unification scale. We first study the case where all superpartners decouple at this scale. We show that contrary to the Standard Model with one Higgs doublet, matching to the supersymmetric UV completion is possible if the low-scale model contains two Higgs doublets. https://www.bagnaschi.eu/science/articles/higgs_mass_unnatural_susy/ Sun, 23 Aug 2020 19:59:57 +0200 https://www.bagnaschi.eu/science/articles/higgs_mass_unnatural_susy/ Emanuele Bagnaschi (UPMC, Paris (main) and Paris, LPTHE), Gian F. Giudice (CERN), Pietro Slavich (UPMC, Paris (main) and Paris, LPTHE), Alessandro Strumia (Pisa U. and INFN, Pisa and NICPB, Tallinn) JHEP 09 (2014) 092 DOI: 10.1007/JHEP09(2014)092 e-Print: arXiv:1407.4081 [hep-ph] Assuming that supersymmetry exists well above the weak scale, we derive the full one-loop matching conditions between the SM and the supersymmetric theory, allowing for the possibility of an intermediate Split-SUSY scale.