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Dijet azimuthal correlations and conditional yields in $pp$ and $p$+Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with the ATLAS detector

ArXiv 1901.1044 (2019)
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Measurement of the ratio of cross sections for inclusive isolated-photon production in $pp$ collisions at $\sqrt s = 13$ and $8$ TeV with the ATLAS detector

ArXiv 1901.10075 (2019)
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Search for scalar resonances decaying into $μ^{+}μ^{-}$ in events with and without $b$-tagged jets produced in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

ArXiv 1901.08144 (2019)
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Measurement of the $t\bar{t}Z$ and $t\bar{t}W$ cross sections in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

ArXiv 1901.03584 (2019)
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Search for pair production of Higgs bosons in the bb¯¯bb¯¯ final state using proton-proton collisions at s√=13 TeV with the ATLAS detector

Journal of High Energy Physics Springer Verlag 2019:1 (2019) 30

Authors:

M Aaboud, G Aad, B Abbott, Luca Ambroz, Giacomo Artoni, Moritz Backes, Alan Barr, Lydia Beresford, Daniela Bortoletto, JTP Burr, Amanda Cooper-Sarkar, James Frost, Elizabeth Gallas, F Giuli, Claire Gwenlan, CP Hays, Todd Huffman, Cigdem Issever, JKK Liu, Luigi Marchese, Koichi Nagai, Michael Nelson, Richard Nickerson, Nurfikri Norjoharuddeen, M Petrov, MA Pickering, Abhishek Sharma, Ian Shipsey, Cecilia Tosciri, Jeffrey Tseng, Georg Viehhauser, Luigi Vigani, Anthony Weidberg, Miha Zgubič

Abstract:

A search for Higgs boson pair production in the bb¯¯bb¯¯ final state is carried out with up to 36.1 fb−1 of LHC proton-proton collision data collected at s√=13 TeV with the ATLAS detector in 2015 and 2016. Three benchmark signals are studied: a spin-2 graviton decaying into a Higgs boson pair, a scalar resonance decaying into a Higgs boson pair, and Standard Model non-resonant Higgs boson pair production. Two analyses are carried out, each implementing a particular technique for the event reconstruction that targets Higgs bosons reconstructed as pairs of jets or single boosted jets. The resonance mass range covered is 260–3000 GeV. The analyses are statistically combined and upper limits on the production cross section of Higgs boson pairs times branching ratio to bb¯¯bb¯¯ are set in each model. No significant excess is observed; the largest deviation of data over prediction is found at a mass of 280 GeV, corresponding to 2.3 standard deviations globally. The observed 95% confidence level upper limit on the non-resonant production is 13 times the Standard Model prediction. Open image in new window
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