Angular distributions in t t ¯ H (H →b b ¯) reconstructed events at the LHC
(2015) In Physical Review D - Particles, Fields, Gravitation and Cosmology 92(3).- Abstract
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 13 TeV at the LHC. Dileptonic final states of tt¯H events with two oppositely charged leptons and four jets from the decays t→bW+→b+ν, t¯→b¯W-→b¯-ν¯ 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... (More)
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 13 TeV at the LHC. Dileptonic final states of tt¯H events with two oppositely charged leptons and four jets from the decays t→bW+→b+ν, t¯→b¯W-→b¯-ν¯ 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¯).
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- author
- publishing date
- 2015-08-26
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review D - Particles, Fields, Gravitation and Cosmology
- volume
- 92
- issue
- 3
- article number
- 034021
- publisher
- American Physical Society
- external identifiers
-
- scopus:84940841091
- ISSN
- 1550-7998
- DOI
- 10.1103/PhysRevD.92.034021
- language
- English
- LU publication?
- no
- id
- a4edf278-c706-49eb-af78-a7648ae5c146
- date added to LUP
- 2019-05-28 15:42:01
- date last changed
- 2023-09-09 04:15:15
@article{a4edf278-c706-49eb-af78-a7648ae5c146, abstract = {{<p>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 13 TeV at the LHC. Dileptonic final states of tt¯H events with two oppositely charged leptons and four jets from the decays t→bW+→b+ν, t¯→b¯W-→b¯-ν¯ 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¯).</p>}}, author = {{Amor Dos Santos, S. P. and Araque, J. P. and Cantrill, R. and Castro, N. F. and Fiolhais, M. C.N. and Frederix, R. and Gonçalo, R. and Martins, R. and Santos, R. and Silva, J. and Onofre, A. and Peixoto, H. and Reigoto, A.}}, issn = {{1550-7998}}, language = {{eng}}, month = {{08}}, number = {{3}}, publisher = {{American Physical Society}}, series = {{Physical Review D - Particles, Fields, Gravitation and Cosmology}}, title = {{Angular distributions in t t ¯ H (H →b b ¯) reconstructed events at the LHC}}, url = {{http://dx.doi.org/10.1103/PhysRevD.92.034021}}, doi = {{10.1103/PhysRevD.92.034021}}, volume = {{92}}, year = {{2015}}, }