Search for Higgs boson pair production in the γγb¯b final state with 13 TeV pp collision data collected by the ATLAS experiment (2018)
- Authors:
- Autor USP: LEITE, MARCO AURELIO LISBOA - IF
- Unidade: IF
- Subjects: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS; ESPALHAMENTO; LHC
- Keywords: HADRON-HADRON SCATTERING (EXPERIMENTS); HIGGS PHYSICS
- Agências de fomento:
- Language: Inglês
- Abstract: A search is performed for resonant and non-resonant Higgs boson pair production in the γγb¯b final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λSM HHH) is constrained at 95% confidence level to −8.2 < κλ < 13.2. For resonant Higgs boson pair production through X → HH → γγb¯b, the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV < mX < 1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass range.
- Imprenta:
- Source:
- Título do periódico: Journal of High Energy Physics
- ISSN: 1029-8479
- Volume/Número/Paginação/Ano: v. 2018, n. 176, p. 1-41, 2018
-
ABNT
AABOUD, M; DONADELLI, Marisílvia; ROSA NAVARRO, José Luis La; LEITE, Marco Aurelio Lisboa. Search for Higgs boson pair production in the γγb¯b final state with 13 TeV pp collision data collected by the ATLAS experiment. Journal of High Energy Physics, Bristol, IOP, v. 2018, n. 176, p. 1-41, 2018. -
APA
Aaboud, M., Donadelli, M., Rosa Navarro, J. L. L., & Leite, M. A. L. (2018). Search for Higgs boson pair production in the γγb¯b final state with 13 TeV pp collision data collected by the ATLAS experiment. Journal of High Energy Physics, 2018( 176), 1-41. -
NLM
Aaboud M, Donadelli M, Rosa Navarro JLL, Leite MAL. Search for Higgs boson pair production in the γγb¯b final state with 13 TeV pp collision data collected by the ATLAS experiment. Journal of High Energy Physics. 2018 ; 2018( 176): 1-41. -
Vancouver
Aaboud M, Donadelli M, Rosa Navarro JLL, Leite MAL. Search for Higgs boson pair production in the γγb¯b final state with 13 TeV pp collision data collected by the ATLAS experiment. Journal of High Energy Physics. 2018 ; 2018( 176): 1-41. - Measurement of the t-channel single top-quark and top-antiqupark di erential cross-sections in pp collisions at 's POT. 1/2'= 8 TeV with the ATLAS detector
- Measurement of charged-particle distributions sensitive to the underlying event in p 's POT. 1/2'= 13 TeV proton–proton collisions with the ATLAS detector at the LHC
- Measurement of jet fragmentation in 'PB'+'PB' and pp collisions at 's IND. NN' POT. 1/2'= 2:76 TeV with the ATLAS detector at the LHC
- Measurement of the 'W POT.+''W POT.-' production cross section in pp collisions at a centre-of-mass energy of 's POT. 1/2'= 13 TeV with the ATLAS experiment
- Differential cross-section measurements of boosted top quarks at 's POT. 1/2'= 13 TeV with the ATLAS detector
- Measurement of the t'BARRA't' production cross section in the 'tau'+ jets final state in pp collisions at 's POT. 1/2'= 8 TeV using the ATLAS detector
- Prospects and results from the AFP detector in ATLAS
- ATLAS results on diffraction and exclusive production
- Studies of double parton scattering in ATLAS
- W and Z boson production in 5.02 TeV pp and p+'PB' collisions with the ATLAS detector
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