Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4972
Título: Are there hidden scalars in LHC Higgs results?
Autor: Arhrib, A.
Ferreira, Pedro Miguel Martins
Santos, Rui Alberto Serra Ribeiro dos
Palavras-chave: Higgs Physics
Beyond Standard Model
Data: Mar-2014
Editora: Springer
Citação: ARHRIB, A.; FERREIRA, Pedro Miguel Martins; SANTOS, Rui Alberto Serra Ribeiro dos – Are there hidden scalars in LHC Higgs results? Journal of High Energy Physics. Nr. 3 (2014), Art. nr. 053
Relatório da Série N.º: 053
Resumo: The Higgs boson recently discovered at the Large Hadron Collider has shown to have couplings to the remaining particles well within what is predicted by the Standard Model. The search for other new heavy scalar states has so far revealed to be fruitless, imposing constraints on the existence of new scalar particles. However, it is still possible that any existing heavy scalars would preferentially decay to final states involving the light Higgs boson thus evading the current LHC bounds on heavy scalar states. Moreover, decays of the heavy scalars could increase the number of light Higgs bosons being produced. Since the number of light Higgs bosons decaying to Standard Model particles is within the predicted range, this could mean that part of the light Higgs bosons could have their origin in heavy scalar decays. This situation would occur if the light Higgs couplings to Standard Model particles were reduced by a concomitant amount. Using a very simple extension of the SM - the two-Higgs doublet model we show that in fact we could already be observing the effect of the heavy scalar states even if all results related to the Higgs are in excellent agreement with the Standard Model predictions.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4972
DOI: 10.1007/JHEP03(2014)053
ISSN: 1029-8479
Aparece nas colecções:ISEL - Física - Artigos

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