Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/3136
Title: | Search for Higgs boson pair production in the WW(*)WW(*) decay channel using ATLAS data recorded at ?s = 13 TeV | Authors: | The ATLAS Collaboration Sultansoy, Saleh |
Keywords: | Collisions jets proton–proton collisions |
Publisher: | Springer Verlag | Source: | ATLAS Collaboration. Search for Higgs boson pair production in the WW () WW () decay channel using ATLAS data recorded at s= 13 TeV. | Abstract: | A search for a pair of neutral, scalar bosons with each decaying into two W bosons is presented using 36.1 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. This search uses three production models: non-resonant and resonant Higgs boson pair production and resonant production of a pair of heavy scalar particles. Three final states, classified by the number of leptons, are analysed: two same-sign leptons, three leptons, and four leptons. No significant excess over the expected Standard Model backgrounds is observed. An observed (expected) 95% confidence-level upper limit of 160 (120) times the Standard Model prediction of non-resonant Higgs boson pair production cross-section is set from a combined analysis of the three final states. Upper limits are set on the production cross-section times branching ratio of a heavy scalar X decaying into a Higgs boson pair in the mass range of 260 GeV ≤ mX ≤ 500 GeV and the observed (expected) limits range from 9.3 (10) pb to 2.8 (2.6) pb. Upper limits are set on the production cross-section times branching ratio of a heavy scalar X decaying into a pair of heavy scalars S for mass ranges of 280 GeV ≤ mX ≤ 340 GeV and 135 GeV ≤ mS ≤ 165 GeV and the observed (expected) limits range from 2.5 (2.5) pb to 0.16 (0.17) pb. © 2019, The Author(s). | URI: | https://link.springer.com/article/10.1007%2FJHEP05%282019%29124 https://hdl.handle.net/20.500.11851/3136 |
ISSN: | 1126-6708 |
Appears in Collections: | Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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sultansoy_bosonpair.pdf | 725.79 kB | Adobe PDF | View/Open |
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