@Article{ATLASCollaborationAaboud_etal2018, author="ATLAS Collaboration (Aaboud, M. et al and Alvarez Piqueras, D. and Barranco Navarro, L. and Cabrera Urban, S. and Castillo Gimenez, V. and Cerda Alberich, L. and Costa, M. J. and Escobar, C. and Estrada Pastor, O. and Fernandez Martinez, P. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Higon-Rodriguez, E. and Jimenez Pena, J. and Lacasta, C. and Madaffari, D. and Mamuzic, J. and Marti-Garcia, S. and Melini, D. and Mitsou, V. A. and Pedraza Lopez, S. and Rodriguez Bosca, S. and Rodriguez Rodriguez, D. and Romero Adam, E. and Salt, J. and Sanchez Martinez, V. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="Search for dark matter produced in association with bottom or top quarks in root s=13 TeV pp collisions with the ATLAS detector", journal="European Physical Journal C", year="2018", publisher="Springer", volume="78", number="1", pages="18--36pp", abstract="A search for weakly interacting massive dark matter particles produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and missing transverse momentum are considered. The analysis uses 36.1 fb(-1) of proton proton collision data recorded by the ATLAS experiment at root s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are interpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour-neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross-section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour-charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements.", optnote="WOS:000422660200005", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3452), last updated on Mon, 29 Jan 2018 13:11:05 +0000", issn="1434-6044", doi="10.1140/epjc/s10052-017-5486-1", opturl="http://arxiv.org/abs/1710.11412", opturl="https://doi.org/10.1140/epjc/s10052-017-5486-1", archivePrefix="arXiv", eprint="1710.11412", language="English" }