Higgs Boson Pair Production at Next-to-Next-to-Leading Order in QCD

• Autores: de Florian, Daniel Enrique; Mazzitelli, Javier Sebastián
• Año de publicación: 2013
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: HIGGS; LHC
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

We compute the next-to-next-to-leading order QCD corrections for standard model Higgs boson pair production inclusive cross section at hadron colliders within the large top-mass approximation. We provide numerical results for the LHC, finding that the corrections are large, resulting in an increase of O(20%) with respect to the next-to-leading order result at c.m. energy sH 1⁄4 14 TeV. We observe a substantial reduction in the scale dependence, with overlap between the current and previous order prediction. All our results are normalized using the full top- and bottom-mass dependence at leading order. We also provide analytical expressions for the K factors as a function of sH.
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Fisica; Argentina;
Fil: Mazzitelli, Javier Sebastián. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Fisica; Argentina;