Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39829
Título: | Angular distributions in tt¯H(H→bb¯) reconstructed events at the LHC |
Autor(es): | Amor dos Santos, S. Araque, Juan Pedro Cantrill, R. Castro, Nuno F. Fiolhais, Miguel C. N. Frederix, R. Gonçalo, R. Martins, R. Santos, R. Silva, J. Onofre, A. Peixoto, H. Reigoto, A. |
Data: | 2015 |
Editora: | American Physical Society |
Revista: | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Citação: | Amor Dos Santos, S. P., Araque, J. P., Cantrill, R., Castro, N. F., Fiolhais, M. C. N., Frederix, R., . . . Reigoto, A. (2015). Angular distributions in t t ¯ H (H →b b ¯) reconstructed events at the LHC. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(3). doi: 10.1103/PhysRevD.92.034021 |
Resumo(s): | The associated production of a Higgs boson and a top-quark pair, tt¯H, in proton-proton collisions is addressed in this paper for a center of mass energy of 13TeV at the LHC. Dileptonic final states of tt¯H events with two oppositely charged leptons and four jets from the decays t→bW+→bℓ+νℓ, t¯→b¯W−→b¯ℓ−ν¯ℓ and h→bb¯, are used. Signal events, generated with MadGraph5_aMC@NLO, are fully reconstructed by applying a kinematic fit. New angular distributions of the decay products as well as angular asymmetries are explored in order to improve discrimination of tt¯H signal events over the dominant irreducible background contribution, tt¯bb¯. Even after the full kinematic fit reconstruction of the events, the proposed angular distributions and asymmetries are still quite different in the tt¯H signal and the dominant background (tt¯bb¯). |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/39829 |
DOI: | 10.1103/PhysRevD.92.034021 |
ISSN: | 0556-2821 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1503.07787.pdf | 2,37 MB | Adobe PDF | Ver/Abrir |