Scalar and pseudoscalar Higgs production in association with a top-antitop pair
| Autor: | Stefano Frixione, Fabio Maltoni, Valentin Hirschi, Rikkert Frederix, Paolo Torrielli, Roberto Pittau |
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| Přispěvatelé: | Frederix, R., Frixione, S., Hirschi, V., Maltoni, F., Pittau, R., Torrielli, P., - Zurich U., - CERN & ITPP, Lausanne, - ITPP, Lausanne, UCL - SST/IRMP - Institut de recherche en mathématique et physique, - CERN & Granada U., Theor. Phys. Astrophys. & CAFPE, Granada, University of Zurich, Frederix, R |
| Rok vydání: | 2011 |
| Předmět: |
Quark
Particle physics Nuclear and High Energy Physics 530 Physics Higgs boson High Energy Physics::Lattice FOS: Physical sciences Elementary particle 10192 Physics Institute NLO 01 natural sciences Qcd Corrections Nuclear physics Parton shower High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Colliders 3106 Nuclear and High Energy Physics 010306 general physics Nuclear Experiment Boson Particle Physics - Phenomenology Quantum chromodynamics Physics Large Hadron Collider 010308 nuclear & particles physics High Energy Physics::Phenomenology Top quark 3. Good health Top quarks Pseudoscalar High Energy Physics - Phenomenology High Energy Physics::Experiment LHC Broken Symmetries |
| Zdroj: | Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 701, no. 4, p. 427–433 (2011) Physics Letters (B) Phys. Lett. |
| DOI: | 10.48550/arxiv.1104.5613 |
| Popis: | We present the calculation of scalar and pseudoscalar Higgs production in association with a top-antitop pair to the next-to-leading order (NLO) accuracy in QCD, interfaced with parton showers according to the MC@NLO formalism. We apply our results to the cases of light and very light Higgs boson production at the LHC, giving results for total rates as well as for sample differential distributions, relevant to the Higgs, to the top quarks, and to their decay products. This work constitutes the first phenomenological application of aMC@NLO, a fully automated approach to complete event generation at NLO in QCD. Comment: 15 pages, 8 figures, published version. (2 references added, improved description of the decay of the top and Higgs bosons) |
| Databáze: | OpenAIRE |
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