@misc{10481/66456,
year = {2020},
url = {http://hdl.handle.net/10481/66456},
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 nonresonant 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 √
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.},
organization = {ANPCyT},
organization = {YerPhI, Armenia},
organization = {Australian Research Council},
organization = {BMWFW, Austria},
organization = {Austrian Science Fund (FWF)},
organization = {Azerbaijan National Academy of Sciences (ANAS)},
organization = {SSTC, Belarus},
organization = {National Council for Scientific and Technological Development (CNPq)},
organization = {Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)},
organization = {Natural Sciences and Engineering Research Council of Canada (NSERC)},
organization = {Canada Foundation for Innovation},
organization = {NRC, Canada},
organization = {CERN},
organization = {ANID, Chile},
organization = {Chinese Academy of Sciences},
organization = {Ministry of Science and Technology, China},
organization = {National Natural Science Foundation of China (NSFC)},
organization = {Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias},
organization = {Ministry of Education, Youth & Sports - Czech Republic},
organization = {Czech Republic Government},
organization = {DNRF, Denmark},
organization = {Danish Natural Science Research Council},
organization = {Centre National de la Recherche Scientifique (CNRS)},
organization = {CEA-DRF/IRFU, France},
organization = {SRNSFG, Georgia},
organization = {Federal Ministry of Education & Research (BMBF)},
organization = {HGF, Germany},
organization = {Max Planck Society},
organization = {Greek Ministry of Development-GSRT},
organization = {RGC, China},
organization = {Hong Kong SAR, China},
organization = {Israel Science Foundation},
organization = {Benoziyo Center, Israel},
organization = {Istituto Nazionale di Fisica Nucleare (INFN)},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)

Japan Society for the Promotion of Science},
organization = {CNRST, Morocco},
organization = {Netherlands Organization for Scientific Research (NWO)

Netherlands Government},
organization = {RCN, Norway},
organization = {Ministry of Science and Higher Education, Poland},
organization = {NCN, Poland},
organization = {Portuguese Foundation for Science and Technology},
organization = {MNE/IFA, Romania},
organization = {MES of Russia, Russia Federation},
organization = {NRC KI, Russia Federation},
organization = {JINR},
organization = {MESTD, Serbia},
organization = {MSSR, Slovakia},
organization = {Slovenian Research Agency - Slovenia},
organization = {MIZS, Slovenia},
organization = {DST/NRF, South Africa},
organization = {Spanish Government},
organization = {Wallenberg Foundation, Sweden},
organization = {SERI, Switzerland},
organization = {Swiss National Science Foundation (SNSF)},
organization = {Canton of Bern, Switzerland},
organization = {Canton of Geneva, Switzerland},
organization = {Ministry of Science and Technology, Taiwan},
organization = {Ministry of Energy & Natural Resources - Turkey},
organization = {UK Research & Innovation (UKRI)

Science & Technology Facilities Council (STFC)},
organization = {United States Department of Energy (DOE)},
organization = {National Science Foundation (NSF)},
organization = {BCKDF, Canada},
organization = {CANARIE, Canada},
organization = {Compute Canada, Canada},
organization = {CRC, Canada},
organization = {European Union (EU)

European Research Council (ERC)},
organization = {European Union (EU)},
organization = {Horizon 2020, European Union},
organization = {European Union (EU)},
organization = {COST, European Union},
organization = {French National Research Agency (ANR)},
organization = {German Research Foundation (DFG)},
organization = {Alexander von Humboldt Foundation},
organization = {Herakleitos programme},
organization = {Thales programme},
organization = {Aristeia programme},
organization = {EU-ESF, Greece},
organization = {Greek NSRF, Greece},
organization = {BSF-NSF, Israel},
organization = {German-Israeli Foundation for Scientific Research and Development},
organization = {La Caixa Banking Foundation, Spain},
organization = {CERCA Programme Generalitat de Catalunya, Spain},
organization = {PROMETEO Programme Generalitat Valenciana, Spain},
organization = {GenT Programme Generalitat Valenciana, Spain},
organization = {Goran Gustafssons Stiftelse, Sweden},
organization = {Royal Society of London},
organization = {Leverhulme Trust},
publisher = {SPRINGER},
keywords = {Hadron-Hadron scattering (experiments)},
title = {Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector},
doi = {10.1007/JHEP11(2020)005},
author = {Aad, G. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration},
}