CONICET | Buscador de Institutos y Recursos Humanos

We analyzed the triple Higgs boson self-coupling at future e+e− colliders energies, with the reactions e+e− ! b¯ bHH, t¯tHH. We evaluate the total cross-sections for both b¯bHH ande+e− colliders energies, with the reactions e+e− ! b¯ bHH, t¯tHH. We evaluate the total cross-sections for both b¯bHH ande+e− ! b¯ bHH, t¯tHH. We evaluate the total cross-sections for both b¯bHH and t¯tHH, and calculate the total number of events considering the complete set of Feynman diagrams at tree-level. We vary the triple coupling 3H within the range = −1 and +2. The numerical computation is done for the energies expected to be available at a possible Future Linear e+e− Collider with a center-of-mass energy 800, 1000, 1500 GeV and a luminosity 1000 fb−1. Our analysis is also extended to a center-of-mass energy 3 T eV and luminosities of 1000 fb−1 and 5000 fb−1. We found that for the process e+e− ! b¯ bHH, the complete calculation differs only by 3% from the approximate calculation e+e− ! ZHH(Z ! b¯b), while for the process e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.¯tHH, and calculate the total number of events considering the complete set of Feynman diagrams at tree-level. We vary the triple coupling 3H within the range = −1 and +2. The numerical computation is done for the energies expected to be available at a possible Future Linear e+e− Collider with a center-of-mass energy 800, 1000, 1500 GeV and a luminosity 1000 fb−1. Our analysis is also extended to a center-of-mass energy 3 T eV and luminosities of 1000 fb−1 and 5000 fb−1. We found that for the process e+e− ! b¯ bHH, the complete calculation differs only by 3% from the approximate calculation e+e− ! ZHH(Z ! b¯b), while for the process e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.3H within the range = −1 and +2. The numerical computation is done for the energies expected to be available at a possible Future Linear e+e− Collider with a center-of-mass energy 800, 1000, 1500 GeV and a luminosity 1000 fb−1. Our analysis is also extended to a center-of-mass energy 3 T eV and luminosities of 1000 fb−1 and 5000 fb−1. We found that for the process e+e− ! b¯ bHH, the complete calculation differs only by 3% from the approximate calculation e+e− ! ZHH(Z ! b¯b), while for the process e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.e+e− Collider with a center-of-mass energy 800, 1000, 1500 GeV and a luminosity 1000 fb−1. Our analysis is also extended to a center-of-mass energy 3 T eV and luminosities of 1000 fb−1 and 5000 fb−1. We found that for the process e+e− ! b¯ bHH, the complete calculation differs only by 3% from the approximate calculation e+e− ! ZHH(Z ! b¯b), while for the process e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.fb−1. Our analysis is also extended to a center-of-mass energy 3 T eV and luminosities of 1000 fb−1 and 5000 fb−1. We found that for the process e+e− ! b¯ bHH, the complete calculation differs only by 3% from the approximate calculation e+e− ! ZHH(Z ! b¯b), while for the process e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.fb−1 and 5000 fb−1. We found that for the process e+e− ! b¯ bHH, the complete calculation differs only by 3% from the approximate calculation e+e− ! ZHH(Z ! b¯b), while for the process e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.e+e− ! ZHH(Z ! b¯b), while for the process e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.e+e− ! t¯tHH, the expected number of events, considering the decay products of both t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.t and H, is not enough to obtain an accurate determination of the triple Higgs boson self-coupling.