@Article{ATLASCollaborationAad_etal2020, author="ATLAS Collaboration (Aad, G. et al and Aparisi Pozo, J. A. and Bailey, A. J. and Cabrera Urban, S. and Castillo, F. L. and Castillo Gimenez, V. and Costa, M. J. and Escobar, C. and Estrada Pastor, O. and Ferrer, A. and Fiorini, L. and Fullana Torregrosa, E. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Gonzalvo Rodriguez, G. R. and Guerrero Rojas, J. G. R. and Higon-Rodriguez, E. and Lacasta, C. and Lozano Bahilo, J. J. and Madaffari, D. and Mamuzic, J. and Marti-Garcia, S. and Martinez Agullo, P. and Mitsou, V. A. and Moreno Llacer, M. and Poveda, J. and Rodriguez Bosca, S. and Ruiz-Martinez, A. and Salt, J. and Santra, A. and Sayago Galvan, I. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector", journal="Journal of High Energy Physics", year="2020", publisher="Springer", volume="11", number="11", pages="005--41pp", optkeywords="Hadron-Hadron scattering (experiments)", abstract="A search for new physics with non-resonant signals in dielectron and dimuon final states in the mass range above 2 TeV is presented. This is the first search for non-resonant signals in dilepton final states at the LHC to use a background estimate from the data. The data, corresponding to an integrated luminosity of 139 fb(-1), were recorded by the ATLAS experiment in proton-proton collisions at a center-of-mass energy of root s= 13 TeV during Run 2 of the Large Hadron Collider. The benchmark signal signature is a two-quark and two-lepton contact interaction, which would enhance the dilepton event rate at the TeV mass scale. To model the contribution from background processes a functional form is fit to the dilepton invariant-mass spectra in data in a mass region below the region of interest. It is then extrapolated to a high-mass signal region to obtain the expected background there. No significant deviation from the expected background is observed in the data. Upper limits at 95{\%} CL on the number of events and the visible cross-section times branching fraction for processes involving new physics are provided. Observed (expected) 95{\%} CL lower limits on the contact interaction energy scale reach 35.8 (37.6) TeV.", optnote="WOS:000587301500001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4597), last updated on Sat, 21 Nov 2020 19:35:47 +0000", issn="1029-8479", doi="10.1007/JHEP11(2020)005", opturl="https://arxiv.org/abs/2006.12946", opturl="https://doi.org/10.1007/JHEP11(2020)005", language="English" }