Search for leptoquark pair production decaying into te−¯te+ or tμ −¯tμ + in multi-lepton final states in pp collisions at √ s = 13TeV with the ATLAS detector
Metadatos
Mostrar el registro completo del ítemAutor
Abel Schaad, Daniel; Aguilar Saavedra, Juan Antonio; Rodríguez Chala, Mikael; Atlas Collaboration, /Editorial
Springer Nature
Fecha
2024-08-14Referencia bibliográfica
Aad, G. & Rodríguez Chala, R. & Atlas Collaboration. Eur. Phys. J. C 84, 818 (2024).[ https://doi.org/10.1140/epjc/s10052-024-12975-4]
Patrocinador
CERN; TRIUMF/SFU (Canada); NDGF (Denmark, Norway, Sweden); CC-IN2P3 (France); KIT/GridKA (Germany); INFN-CNAF (Italy); NL-T1 (Netherlands); PIC (Spain); RAL (UK) and BNL (USA); ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; ANID, Chile; CAS, MOST and NSFC, China; Minciencias, Colombia; MEYS CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF andMPG,Germany; GSRI, Greece; RGC and HongKong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MEiN, Poland; FCT, Portugal; MNE/IFA, Romania; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DSI/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taipei; TENMAK, Türkiye; STFC, United Kingdom; DOE and NSF, United States of America; BCKDF, CANARIE, CRC and DRAC, Canada; PRIMUS 21/SCI/017 and UNCE SCI/013, Czech Republic; COST, ERC, ERDF, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; Investissements d’Avenir Labex, Investissements d’Avenir Idex and ANR,France; DFGandAvHFoundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and MINERVA, Israel; Norwegian Financial Mechanism 2014–2021, Norway; NCN and NAWA, Poland; La Caixa Banking Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO and GenT Programmes Generalitat Valenciana, Spain; Göran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom; European Organization for Nuclear Research (CERN DOCT); Chile: Agencia Nacional de Investigación y Desarrollo (FONDECYT 1190886, FONDECYT 1210400); China: National Natural Science Foundation of China (NSFC – 12175119); EU: H2020 European Research Council (H2020-MSCA-IF-2020: HPOFHIC – 10103); European Union: European Research Council (ERC – 948254), Horizon 2020 Framework Programme (MUCCA – CHIST-ERA-19-XAI-00), Marie Sklodowska-Curie Actions (EU H2020 MSC IF GRANT NO 101033496); France: Agence Nationale de la Recherche (ANR-20-CE31-0013, ANR-21-CE31-0013, ANR-21- CE31-0022), Investissements d’Avenir Idex (ANR-11-LABX-0012); Germany: Deutsche Forschungsgemeinschaft (DFG – CR 312/5- 1); Italy: Istituto Nazionale di Fisica Nucleare (FELLINI G.A. n. 754496); Japan: Japan Society for the Promotion of Science (JSPS KAKENHI 22H01227, JSPS KAKENHI JP21H05085, JSPS KAKENHI JP22H04944); Netherlands: Netherlands Organisation for Scientific Research (NWO Veni 2020 – VI.Veni.202.179); Norway: Research Council of Norway (RCN-314472); Poland: Polish National Agency for Academic Exchange (PPN/PPO/2020/1/00002/U/00001), Polish National Science Centre (NCN UMO-2019/34/E/ST2/00393, UMO-2020/37/B/ST2/01043, UMO-2021/40/C/ST2/00187; Slovenia: Slovenian Research Agency (ARIS grant J1-3010); Spain:BBVAFoundation (LEO22-1-603), Generalitat Valenciana (Artemisa, FEDER, IDIFEDER/2018/048), La Caixa Banking Foundation (La Caixa Foundation, LCF/BQ/PI20/11760025), Ministry of Science and Innovation (RYC2019-028510-I), PROMETEO and GenT Programmes Generalitat Valenciana (CIDEGENT/2019/023, CIDEGENT/2019/027, CIDEGENT/ 2019/029, GVA-SEJI/2020/037); Sweden: Swedish Research Council (SRC – 2017-05160, VR 2017-05092), Knut and Alice Wallenberg Foundation (KAW 2017.0100, KAW 2018.0157, KAW 2019.0447); Switzerland: Swiss National Science Foundation (SNSF – PCEFP2_194658); UAE: Arab Fund for Economic and Social Development (AFESD-2021-994); UnitedKingdom: Leverhulme Trust (Leverhulme Trust RPG-2020-004)Resumen
Asearch for leptoquark pair production decaying
into te−¯te+ or tμ
−¯tμ
+ in final states with multiple leptons
is presented. The search is based on a dataset of pp collisions
at
√
s = 13 TeV recorded with the ATLAS detector during
Run 2 of the LargeHadron Collider, corresponding to an integrated
luminosity of 139 fb−1. Four signal regions, with the
requirement of at least three light leptons (electron or muon)
and at least two jets out of which at least one jet is identified
as coming from a b-hadron, are considered based on the
number of leptons of a given flavour. The main background
processes are estimated using dedicated control regions in a
simultaneous fit with the signal regions to data. No excess
above the StandardModel background prediction is observed
and 95% confidence level limits on the production cross section
times branching ratio are derived as a function of the
leptoquark mass. Under the assumption of exclusive decays
into te− (tμ
−), the corresponding lower limit on the scalar
mixed-generation leptoquark mass mLQd
mix
is at 1.58 (1.59)
TeV and on the vector leptoquark mass m ˜U1
at 1.67 (1.67)
TeV in the minimal coupling scenario and at 1.95 (1.95) TeV
in the Yang–Mills scenario.