Search for high-mass resonances in final states with a τ-lepton and missing transverse momentum with the ATLAS detector

  • ATLAS Collaboration

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7 Scopus citations

Abstract

A search for high-mass resonances decaying into a Formula Presented-lepton and a neutrino using proton-proton collisions at a center-of-mass energy of Formula Presented is presented. The full run 2 data sample corresponding to an integrated luminosity of Formula Presented recorded by the ATLAS experiment in the years 2015-2018 is analyzed. The Formula Presented-lepton is reconstructed in its hadronic decay modes and the total transverse momentum carried out by neutrinos is inferred from the reconstructed missing transverse momentum. The search for new physics is performed on the transverse mass between the Formula Presented-lepton and the missing transverse momentum. No excess of events above the Standard Model expectation is observed and upper exclusion limits are set on the Formula Presented production cross section. Heavy Formula Presented vector bosons with masses up to 5.0 TeV are excluded at 95% confidence level, assuming that they have the same couplings as the Standard Model Formula Presented boson. For nonuniversal couplings, Formula Presented bosons are excluded for masses less than 3.5-5.0 TeV, depending on the model parameters. In addition, model-independent limits on the visible cross section times branching ratio are determined as a function of the lower threshold on the transverse mass of the Formula Presented-lepton and missing transverse momentum.

Original languageEnglish
Article number112008
JournalPhysical Review D
Volume109
Issue number11
DOIs
StatePublished - Jun 1 2024
Externally publishedYes

Funding

We thank CERN for the very successful operation of the LHC and its injectors, as well as the support staff at CERN and at our institutions worldwide without whom ATLAS could not be operated efficiently. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at 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), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in Ref. [87]. We gratefully acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; Minciencias, Colombia; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; RGC and Hong Kong 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; STFC, United Kingdom; DOE and NSF, United States of America. Individual groups and members have received support from 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; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF, Greece; BSF-NSF and MINERVA, Israel; Norwegian Financial Mechanism 2014-2021, Norway; 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. In addition, individual members wish to acknowledge support from CERN: CERN & Society Foundation (ATLAS PhD Grant); Chile: Agencia Nacional de Investigación y Desarrollo (Grants No. FONDECYT 1190886, No. FONDECYT 1210400); China: National Natural Science Foundation of China (Grant No. NSFC-12075060), EU: H2020 European Research Council (Grant No. H2020-MSCA-IF-2020: HPOFHIC—10103); European Union: European Research Council (Grant No. ERC—948254), Horizon 2020 Framework Programme (MUCCA—CHIST-ERA-19-XAI-00); France: Agence Nationale de la Recherche (Grant No. ANR-21-CE31-0022); Germany: Deutsche Forschungsgemeinschaft (Grant No. DFG—CR 312/5-1); Italy: Istituto Nazionale di Fisica Nucleare (FELLINI G.A. Grant No.. 754496); Poland: Polish National Agency for Academic Exchange (Grant No. PPN/PPO/2020/1/00002/U/00001), Polish National Science Centre (Grants No. NCN UMO-2019/34/E/ST2/00393, No. UMO-2020/37/B/ST2/01043); South Africa: South Africa National Research Foundation (Grant No. CPRR118515); Spain: Generalitat Valenciana (Grants No. APOSTD/2019/165, No. PGC2018-094856-BI00, Artemisa, FEDER, IDIFEDER/2018/048), La Caixa Banking Foundation (La Caixa Foundation, Grants No. LCF/BQ/PI19/11690014, No. LCF/BQ/PI20/11760025), PROMETEO and GenT Programmes Generalitat Valenciana (Grants No. CIDEGENT/2019/023, No. CIDEGENT/2019/027, No. CIDEGENT/2019/029, No. GVA-SEJI/2020/037); Sweden: Swedish Research Council (Grant No. SRC—2017-05160, VR 2017-05092), Knut and Alice Wallenberg Foundation (Grants No. KAW 2017.0100, No. KAW 2018.0157, No. KAW 2019.0447); Switzerland: Swiss National Science Foundation (Grant No. SNSF—PCEFP2_194658); United Kingdom: Leverhulme Trust (Leverhulme Trust Grant No. RPG-2020-004). We thank CERN for the very successful operation of the LHC and its injectors, as well as the support staff at CERN and at our institutions worldwide without whom ATLAS could not be operated efficiently. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at 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), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in Ref. . We gratefully acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; Minciencias, Colombia; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; RGC and Hong Kong 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; STFC, United Kingdom; DOE and NSF, United States of America. Individual groups and members have received support from 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; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF, Greece; BSF-NSF and MINERVA, Israel; Norwegian Financial Mechanism 2014-2021, Norway; 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. In addition, individual members wish to acknowledge support from CERN: CERN & Society Foundation (ATLAS PhD Grant); Chile: Agencia Nacional de Investigación y Desarrollo (Grants No. FONDECYT 1190886, No. FONDECYT 1210400); China: National Natural Science Foundation of China (Grant No. NSFC-12075060), EU: H2020 European Research Council (Grant No. H2020-MSCA-IF-2020: HPOFHIC—10103); European Union: European Research Council (Grant No. ERC—948254), Horizon 2020 Framework Programme (MUCCA—CHIST-ERA-19-XAI-00); France: Agence Nationale de la Recherche (Grant No. ANR-21-CE31-0022); Germany: Deutsche Forschungsgemeinschaft (Grant No. DFG—CR 312/5-1); Italy: Istituto Nazionale di Fisica Nucleare (FELLINI G.A. Grant No.. 754496); Poland: Polish National Agency for Academic Exchange (Grant No. PPN/PPO/2020/1/00002/U/00001), Polish National Science Centre (Grants No. NCN UMO-2019/34/E/ST2/00393, No. UMO-2020/37/B/ST2/01043); South Africa: South Africa National Research Foundation (Grant No. CPRR118515); Spain: Generalitat Valenciana (Grants No. APOSTD/2019/165, No. PGC2018-094856-BI00, Artemisa, FEDER, IDIFEDER/2018/048), La Caixa Banking Foundation (La Caixa Foundation, Grants No. LCF/BQ/PI19/11690014, No. LCF/BQ/PI20/11760025), PROMETEO and GenT Programmes Generalitat Valenciana (Grants No. CIDEGENT/2019/023, No. CIDEGENT/2019/027, No. CIDEGENT/2019/029, No. GVA-SEJI/2020/037); Sweden: Swedish Research Council (Grant No. SRC—2017-05160, VR 2017-05092), Knut and Alice Wallenberg Foundation (Grants No. KAW 2017.0100, No. KAW 2018.0157, No. KAW 2019.0447); Switzerland: Swiss National Science Foundation (Grant No. SNSF—PCEFP2_194658); United Kingdom: Leverhulme Trust (Leverhulme Trust Grant No. RPG-2020-004).

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