Elementary excitations of a Higgs-Yukawa system (2013)
- Authors:
- Autor USP: PIZA, ANTONIO FERNANDO RIBEIRO DE TOLEDO - IF
- Unidade: IF
- Subjects: TEORIA NÃO LINEAR; MECÂNICA QUÂNTICA; BÓSON DE HIGGS
- Language: Inglês
- Abstract: This work investigates the physics of elementary excitations for theso-called relativistic quantum scalar plasma system, also known as the Higgs-Yukawa system. Following the Nemes-Piza-Kerman-Lin manybody procedure, the Random-Phase Approximation (RPA) equations were obtained for this model by linearizing the Time-Dependent Hartree-Fock-Bogoliubov equations of motion around equilibrium. The resulting equations have a closed solution, from which the spectrum of excitation modes are studied. We show that the RPA oscillatory modes give the one-boson and two-fermion states of the theory. The results indicate the existence of bound states in certain regions in the phase diagram. Applying these results to recent LHC observations concerning the mass of the Higgs boson, we determine limits for the intensity of the coupling constant g of the Higgs-Yukawa model, in the RPA mean-field approximation, for three decay channels of the Higgs boson. Finally, we verify that, within our approximations, only Higgs bosons with masses larger than 190 GeV/c 2 can decay into top quarks.
- Imprenta:
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ABNT
NATTI, Erica Regina Takano et al. Elementary excitations of a Higgs-Yukawa system. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1304.0652v1.pdf. Acesso em: 06 fev. 2026. , 2013 -
APA
Natti, E. R. T., Piza, A. F. R. de T., Natti, P. L., & Lin, C. -Y. (2013). Elementary excitations of a Higgs-Yukawa system. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1304.0652v1.pdf -
NLM
Natti ERT, Piza AFR de T, Natti PL, Lin C-Y. Elementary excitations of a Higgs-Yukawa system [Internet]. 2013 ;[citado 2026 fev. 06 ] Available from: http://lanl.arxiv.org/pdf/1304.0652v1.pdf -
Vancouver
Natti ERT, Piza AFR de T, Natti PL, Lin C-Y. Elementary excitations of a Higgs-Yukawa system [Internet]. 2013 ;[citado 2026 fev. 06 ] Available from: http://lanl.arxiv.org/pdf/1304.0652v1.pdf - The kinematics of generator coordinates
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