Search for the Standard Model Higgs boson decaying into bb¯ produced in association with top quarks decaying hadronically in pp collisions at √s = 8 TeV with the ATLAS detector

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Bibtex

@article{4ae877e688134ddfbfefcc4b2c978082,
title = "Search for the Standard Model Higgs boson decaying into bb¯ produced in association with top quarks decaying hadronically in pp collisions at √s = 8 TeV with the ATLAS detector",
abstract = "A search for Higgs boson production in association with a pair of top quarks (tt¯ H) is performed, where the Higgs boson decays to bb¯, and both top quarks decay hadronically. The data used correspond to an integrated luminosity of 20.3 fb−1 of pp collisions at √s = 8 TeV collected with the ATLAS detector at the Large Hadron Collider. The search selects events with at least six energetic jets and uses a boosted decision tree algorithm to discriminate between signal and Standard Model background. The dominant multijet background is estimated using a dedicated data-driven technique. For a Higgs boson mass of 125 GeV, an upper limit of 6.4 (5.4) times the Standard Model cross section is observed (expected) at 95{\%} confidence level. The best-fit value for the signal strength is μ = 1.6 ± 2.6 times the Standard Model expectation for mH = 125 GeV. Combining all tt¯ H searches carried out by ATLAS at √s = 8 and 7 TeV, an observed (expected) upper limit of 3.1 (1.4) times the Standard Model expectation is obtained at 95{\%} confidence level, with a signal strength μ = 1.7 ± 0.8. {\circledC} 2016, The Author(s).",
keywords = "Hadron-Hadron scattering (experiments)",
author = "G Aad and B. Abbott and J Abdallah and B Abeloos and R Aben and M Abolins and Torsten {\AA}kesson and Simona Bocchetta and LENE BRYNGEMARK and Caterina Doglioni and Anders Floderus and Anthony Hawkins and Vincent Hedberg and G{\"o}ran Jarlskog and Else Lytken and Ulf Mj{\"o}rnmark and Oxana Smirnova and Oleksandr Viazlo and {ATLAS Collaboration}",
note = "Cited By :3 Export Date: 21 July 2017",
year = "2016",
doi = "10.1007/JHEP05(2016)160",
language = "English",
volume = "2016",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "5",

}