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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Multiple Higgs and vector boson production beyond the Standard Model

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Author(s):
Belyaev, A. [1, 2] ; Oliveira, A. C. A. [3, 4, 5] ; Rosenfeld, R. [3, 4, 5] ; Thomas, M. C. [2]
Total Authors: 4
Affiliation:
[1] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon - England
[2] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants - England
[3] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo - Brazil
[4] ICTP South Amer Inst Fundamental Res, BR-01140070 Sao Paulo - Brazil
[5] CERN, Dept Phys, Div Theory, CH-1211 Geneva 23 - Switzerland
Total Affiliations: 5
Document type: Journal article
Source: Journal of High Energy Physics; n. 5 MAY 2013.
Web of Science Citations: 3
Abstract

If the electroweak symmetry breaking is originated from a strongly coupled sector, as for instance in composite Higgs models, the Higgs boson couplings can deviate from their Standard Model values. In such cases, at sufficiently high energies there could occur an onset of multiple Higgs boson and longitudinally polarised electroweak gauge boson (VL) production. We study the sensitivity to anomalous Higgs couplings in inelastic processes with 3 and 4 particles (either Higgs bosons or VL's) in the final state. We show that, due to the more severe cancellations in the corresponding amplitudes as compared to the usual 2 2 processes, large enhancements with respect to the Standard Model can arise even for small modifications of the Higgs couplings. In particular, we find that triple Higgs production provides the best multiparticle channel to look for these deviations. We briefly explore the consequences of multiparticle production at the LHC. (AU)

FAPESP's process: 11/10199-3 - Electroweak symmetry breaking at the LHC
Grantee:Rogério Rosenfeld
Support type: Scholarships abroad - Research