TY  - JOUR
T1  - Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at \(\sqrt{s}\) = 13 TeV with the ATLAS detector
T2  - Journal of High Energy Physics
N2  - 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 \(\sqrt{s}\) = 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 \(\tilde{t}_1\) → \(t^{(∗)}\)\(\tilde{χ}^0_1\)  and \(\tilde{t}_1\) → \(b\tilde{χ}^±_1\) → \({bW}^{(∗)}\tilde{χ}^0_1\), where \(\tilde{χ}^0_1\) (\(\tilde{χ}^±_1\)) 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 \(t\tilde{χ}^0_1\), top-squark masses in the range 450–1000 GeV are excluded for \(\tilde{χ}^0_1\) masses below 160 GeV. In the case where \(m_{\tilde{t}_1}\) ∼ \(m_t\) + \(m_{\tilde{χ}^0_1}\), top-squark masses in the range 235–590 GeV are excluded.
KW  - high energy physics
KW  - Hadron-Hadron scattering (experiments)
Y1  - 2017
UR  - https://opus.bibliothek.uni-wuerzburg.de/opus4-wuerzburg/frontdoor/index/index/docId/17216
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-172161
VL  - 12
ER  -