The measurement of the Higgs self-coupling at the LHC: Theoretical status
| Autor: | Michael Spira, J. Baglio, Jérémie Quevillon, Margarete Mühlleitner, Ramona Gröber, Abdelhak Djouadi |
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| Přispěvatelé: | Institut für Theoretische Physik, Karlsruhe Institute of Technology (KIT), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Paul Scherrer Institute (PSI) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Higgs Physics
QCD Standard Model Top quark Particle physics Nuclear and High Energy Physics High Energy Physics::Lattice FOS: Physical sciences Higgs physics Standard model High Energy Physics - Phenomenology 01 natural sciences Vector boson High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences 010306 general physics Quantum chromodynamics Physics Gauge boson Large Hadron Collider 010308 nuclear & particles physics Electroweak interaction High Energy Physics::Phenomenology Gluon [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Higgs boson High Energy Physics::Experiment |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Springer, 2013, 04, pp.151. ⟨10.1007/JHEP04(2013)151⟩ Journal of High Energy Physics, 2013 (4) |
| ISSN: | 1126-6708 1029-8479 |
| Popis: | Now that the Higgs boson has been observed by the ATLAS and CMS experiments at the LHC, the next important step would be to measure accurately its properties to establish the details of the electroweak symmetry breaking mechanism. Among the measurements which need to be performed, the determination of the Higgs self-coupling in processes where the Higgs boson is produced in pairs is of utmost importance. In this paper, we discuss the various processes which allow for the measurement of the trilinear Higgs coupling: double Higgs production in gluon fusion, vector boson fusion, double Higgs-strahlung and associated production with a top quark pair. We first evaluate the production cross sections for these processes at the LHC with center-of-mass energies ranging from the present s√=8 TeV to s√=100 TeV, and discuss their sensitivity to the trilinear Higgs coupling. We include the various higher order QCD radiative corrections, at next-to-leading order for gluon and vector boson fusion and at next-to-next-to-leading order for associated double Higgs production with a gauge boson. The theoretical uncertainties on these cross sections are estimated. Finally, we discuss the various channels which could allow for the detection of the double Higgs production signal at the LHC and estimate their potential to probe the trilinear Higgs coupling. Journal of High Energy Physics, 2013 (4) ISSN:1126-6708 ISSN:1029-8479 |
| Databáze: | OpenAIRE |
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