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https://hdl.handle.net/10316/108231
Título: | Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s=13 TeV with the ATLAS detector | Autor: | Santos, S. P. Amor dos Carvalho, J. Fiolhais, M. C. N. Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Data: | 2017 | Editora: | Springer Nature | Título da revista, periódico, livro ou evento: | Journal of High Energy Physics | Volume: | 2017 | Número: | 12 | Resumo: | A search for pair production of a scalar partner of the top quark in events with four or more jets plus missing transverse momentum is presented. An analysis of 36.1 fb−1 of s=13 TeV proton-proton collisions collected using the ATLAS detector at the LHC yields no significant excess over the expected Standard Model background. To interpret the results a simplified supersymmetric model is used where the top squark is assumed to decay via t˜1→t(∗)χ˜10 and t˜1→bχ˜1±→bW(∗)χ˜10, where χ1 0(χ1 ±) denotes the lightest neutralino (chargino). Exclusion limits are placed in terms of the top-squark and neutralino masses. Assuming a branching ratio of 100% to tχ˜10, top-squark masses in the range 450–1000 GeV are excluded for χ˜10 masses below 160 GeV. In the case where mt˜1∼mt+mχ˜10, top-squark masses in the range 235–590 GeV are excluded. | URI: | https://hdl.handle.net/10316/108231 | DOI: | 10.1007/JHEP12(2017)085 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
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Search-for-a-scalar-partner-of-the-top-quark-in-the-jets-plus-missing-transverse-momentum-final-state-at-s13-TeV-with-the-ATLAS-detectorJournal-of-High-Energy-Physics.pdf | 1.23 MB | Adobe PDF | Ver/Abrir |
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