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:
- USP affiliated author: LEITE, MARCO AURELIO LISBOA - IF
- School: 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, v. 2018, n. 176, p. 1-41, 2018. Disponível em: < https://link.springer.com/content/pdf/10.1007%2FJHEP11%282018%29040.pdf >. -
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. Recuperado de https://link.springer.com/content/pdf/10.1007%2FJHEP11%282018%29040.pdf -
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 [Internet]. Journal of High Energy Physics. 2018 ; 2018( 176): 1-41.Available from: https://link.springer.com/content/pdf/10.1007%2FJHEP11%282018%29040.pdf -
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 [Internet]. Journal of High Energy Physics. 2018 ; 2018( 176): 1-41.Available from: https://link.springer.com/content/pdf/10.1007%2FJHEP11%282018%29040.pdf - Measurement of the top quark-pair production cross section with ATLAS in pp collisions at `S POT.1/2´ = 7 TeV
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