@misc{10481/85263,
year = {2023},
month = {7},
url = {https://hdl.handle.net/10481/85263},
abstract = {A search for the leptonic charge asymmetry (A`c) of top-quark-antiquark pair
production in association with a W boson (t¯tW) is presented. The search is performed using
final states with exactly three charged light leptons (electrons or muons) and is based on p
s =
13TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron
Collider at CERN during the years 2015–2018, corresponding to an integrated luminosity
of 139 fb−1. A profile-likelihood fit to the event yields in multiple regions corresponding
to positive and negative differences between the pseudorapidities of the charged leptons
from top-quark and top-antiquark decays is used to extract the charge asymmetry. At
reconstruction level, the asymmetry is found to be −0.12 ± 0.14 (stat.) ±0.05 (syst.).
An unfolding procedure is applied to convert the result at reconstruction level into a
charge-asymmetry value in a fiducial volume at particle level with the result of −0.11 ±
0.17 (stat.) ±0.05 (syst.). The Standard Model expectations for these two observables are
calculated using Monte Carlo simulations with next-to-leading-order plus parton shower
precision in quantum chromodynamics and including next-to-leading-order electroweak
corrections. They are −0.084 +0.005
−0.003 (scale) ±0.006 (MC stat.) and −0.063 +0.007
−0.004 (scale)
±0.004 (MC stat.) respectively, and in agreement with the measurements.},
organization = {CERN},
organization = {ANPCyT},
organization = {YerPhI, Armenia},
organization = {Australian Research Council},
organization = {BMWFW},
organization = {Austrian Science Fund (FWF)},
organization = {Azerbaijan National Academy of Sciences (ANAS)},
organization = {SSTC, Belarus},
organization = {Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (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 = {National Natural Science Foundation of China (NSFC)},
organization = {MEYS CR, Czech Republic},
organization = {DNRF},
organization = {Danish Natural Science Research Council},
organization = {Centre National de la Recherche Scientifique (CNRS)},
organization = {CEA-DRF/IRFU, France},
organization = {Federal Ministry of Education & Research (BMBF)},
organization = {Max Planck Society},
organization = {RGC and 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; NWO, Netherlands},
organization = {RCN, Norway},
organization = {MEiN, Poland},
organization = {Fundacao para a Ciencia e a Tecnologia (FCT)},
organization = {MNE/IFA, Romania},
organization = {NRC KI, Russian Federation},
organization = {Ministry of Education, Science & Technological Development, Serbia},
organization = {MSSR, Slovakia},
organization = {Slovenian Research Agency - Slovenia},
organization = {MIZS, Slovenia},
organization = {Spanish Government},
organization = {SRC},
organization = {Wallenberg Foundation, Sweden},
organization = {Swiss National Science Foundation (SNSF)},
organization = {Ministry of Science and Technology, Taiwan},
organization = {UK Research & Innovation (UKRI)
Science & Technology Facilities Council (STFC)},
organization = {United States Department of Energy (DOE)},
organization = {National Science Foundation (NSF)},
organization = {BCKDF},
organization = {CANARIE},
organization = {CRC, Canada},
organization = {COST, ERC},
organization = {European Union (EU)},
organization = {European Union (EU)
Marie Curie Actions},
organization = {Agence Nationale de la Recherche (ANR)},
organization = {German Research Foundation (DFG)},
organization = {Alexander von Humboldt Foundation},
organization = {Greek NSRF, Greece},
organization = {BSF-NSF},
organization = {German-Israeli Foundation for Scientific Research and Development},
organization = {Norwegian Financial Mechanism},
organization = {NCN},
organization = {La Caixa Foundation},
organization = {CERCA Programme Generalitat de Catalunya},
organization = {PROMETEO},
organization = {Center for Forestry Research & Experimentation (CIEF)},
organization = {Goran Gustafssons Stiftelse, Sweden},
organization = {Royal Society},
organization = {Leverhulme Trust},
organization = {NDGF (Denmark, Norway, Sweden)},
organization = {KIT/GridKA (Germany)},
organization = {INFN-CNAF (Italy)},
organization = {NL-T1 (Netherlands), PIC (Spain)},
organization = {ASGC (Taiwan)},
organization = {BNL (U.S.A.)},
publisher = {Springer Nature},
keywords = {Hadron-Hadron Scattering},
keywords = {Top Physics},
title = {Search for leptonic charge asymmetry in t¯tW production in final states with three leptons at p s = 13 TeV},
doi = {10.1007/JHEP07(2023)033},
author = {Atlas Collaboration and Aguilar Saavedra, Juan Antonio and Rodríguez Chala, Mikael},
}