Publicação
Angular distributions in $t \overline{t}H(H → b \overline{b})$ reconstructed events at the LHC
| dc.contributor.author | Amor dos Santos, S. P. | |
| dc.contributor.author | Araque, J.P. | |
| dc.contributor.author | Cantrill, R. | |
| dc.contributor.author | Castro, N.F. | |
| dc.contributor.author | Fiolhais, M.C.N. | |
| dc.contributor.author | Frederix, R. | |
| dc.contributor.author | Gonçalo, R. | |
| dc.contributor.author | Martins, R. | |
| dc.contributor.author | Santos, R. | |
| dc.contributor.author | Silva, J. | |
| dc.contributor.author | Onofre, A. | |
| dc.contributor.author | Peixoto, H. | |
| dc.contributor.author | Reigoto, A. | |
| dc.date.accessioned | 2019-02-04T06:27:46Z | |
| dc.date.available | 2019-02-04T06:27:46Z | |
| dc.date.issued | 2015-08-26 | |
| dc.date.updated | 2019-02-04T06:27:46Z | |
| dc.description.abstract | The associated production of a Higgs boson and a top-quark pair, $t{\bar t} H$, in proton-proton collisions is addressed in this paper for a center of mass energy of 13TeV at the LHC. Dileptonic final states of $t{\bar t}H$ events with two oppositely charged leptons and four jets from the decays $t\rightarrow bW^+ \rightarrow b \ell^+\nu_\ell$, $\bar{t}\rightarrow \bar{b}W^- \rightarrow \bar{b} \ell^-\bar{\nu}_\ell$ and $h\rightarrow b\bar{b}$, 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 $t{\bar t} H$ signal events over the dominant irreducible background contribution, $t{\bar t}b{\bar b}$. Even after the full kinematic fit reconstruction of the events, the proposed angular distributions and asymmetries are still quite different in the $t\bar{t}H$ signal and the dominant background ($t\bar{t}b\bar{b}$). | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | Phys.Rev. D92 (2015) 034021; DOI 10.1103/PhysRevD.92.034021 | |
| dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevD.92.034021 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/26811 | |
| dc.language.iso | eng | |
| dc.title | Angular distributions in $t \overline{t}H(H → b \overline{b})$ reconstructed events at the LHC | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |