Abstract
A search for charged-lepton-flavor violating Formula Presented (Formula Presented, Formula Presented) interactions is presented, considering both top-quark production and decay. The data analyzed correspond to Formula Presented of proton-proton collisions at a center-of-mass energy of Formula Presented recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying Formula Presented-lepton and at least one jet, with exactly one Formula Presented-tagged jet, produced by a Formula Presented interaction. Agreement with the Standard Model expectation within 1.6 standard deviations is observed, and limits are set at the 95% confidence level (CL) on the charged-lepton-flavor violation branching ratio of Formula Presented. An effective field theory interpretation is performed yielding 95% CL limits on Wilson coefficients, dependent on the flavor of the associated light quark and the Lorentz structure of the coupling. These range from Formula Presented for Formula Presented to Formula Presented for Formula Presented. An additional interpretation is performed for scalar leptoquark production inducing charged-lepton-flavor violation, with fixed intergenerational couplings. Upper limits on leptoquark coupling strengths are set at the 95% CL, ranging from Formula Presented to Formula Presented for leptoquark masses between 0.5 and 2.0 TeV.
| Original language | English (US) |
|---|---|
| Article number | 012014 |
| Journal | Physical Review D |
| Volume | 110 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 1 2024 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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- 10.1103/PhysRevD.110.012014License: CC BY
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In: Physical Review D, Vol. 110, No. 1, 012014, 01.07.2024.
Research output: Contribution to journal βΊ Article βΊ peer-review
}
TY - JOUR
T1 - Search for charged-lepton-flavor violating πβ’πβ’πβ’π‘ interactions in top-quark production and decay in πβ’π collisions at βπ =13ββTeV with the ATLAS detector at the LHC
AU - Atlas Collaboration
AU - Filmer, E. K.
AU - Grant, C. M.
AU - Jackson, P.
AU - Kong, A. X.Y.
AU - Pandya, H. D.
AU - Potti, H.
AU - Ruggeri, T. A.
AU - Saha, S.
AU - Ting, E. X.L.
AU - White, M. J.
AU - Gingrich, D. M.
AU - Lindon, J. H.
AU - Nishu, N.
AU - Pinfold, J. L.
AU - Cakir, O.
AU - Canbay, A. C.
AU - Yildiz, H. Duran
AU - Kuday, S.
AU - Turk Cakir, I.
AU - Sultansoy, S.
AU - Adam Bourdarios, C.
AU - Arnaez, O.
AU - Berger, N.
AU - Brahimi, N.
AU - Castillo, F. L.
AU - Cavaliere, T.
AU - Costanza, F.
AU - Delmastro, M.
AU - Di Ciaccio, L.
AU - Hrynβova, T.
AU - Koletsou, I.
AU - LevΓͺque, J.
AU - Lewis, D. J.
AU - Little, J. D.
AU - Lorenzo Martinez, N.
AU - Sauvan, E.
AU - Wu, Z.
AU - Bernardi, G.
AU - Bomben, M.
AU - Li, A.
AU - Li, T.
AU - Marchiori, G.
AU - Nakkalil, K.
AU - Shen, Q.
AU - Zhang, Y.
AU - Chekanov, S.
AU - Hopkins, W. H.
AU - Hooberman, B. H.
AU - Neubauer, M. S.
AU - Sickles, A. M.
N1 - 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. [145]. 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; MEYS CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRI, Greece; 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 MIZ\u0160, Slovenia; DSI/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF, and Cantons of Bern and Geneva, Switzerland; MOST, Taipei; TENMAK, T\u00FCrkiye; STFC, United Kingdom; DOE and NSF, USA. 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, ICSC-NextGenerationEU, and Marie Sk\u0142odowska-Curie Actions, European Union; Investissements d\u2019Avenir Labex, Investissements d\u2019Avenir Idex, and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales, and Aristeia programs 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; G\u00F6ran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom. In addition, individual members wish to acknowledge support from CERN: European Organization for Nuclear Research (CERN PJAS); Chile: Agencia Nacional de Investigaci\u00F3n y Desarrollo (Grants No. FONDECYT 1190886, No. FONDECYT 1210400, and No. FONDECYT 1230987); China: National Natural Science Foundation of China (Grants No. NSFC\u201412175119 and No. NSFC 12275265); European Union: European Research Council (Grants No. ERC\u2014948254 and No. ERC 101089007), Horizon 2020 Framework Programme (Grant No. MUCCA\u2014CHIST-ERA-19-XAI-00), Italian Center for High Performance Computing, Big Data and Quantum Computing (ICSC, NextGenerationEU); France: Agence Nationale de la Recherche (Grants No. ANR-20-CE31-0013 and No. ANR-21-CE31-0022), Investissements d\u2019Avenir Labex (Grant No. ANR-11-LABX-0012); Germany: Baden-W\u00FCrttemberg Stiftung (BW Stiftung-Postdoc Eliteprogramme), Deutsche Forschungsgemeinschaft (Grants No. DFG\u2014469666862 and No. DFG\u2014CR 312/5-2); Italy: Istituto Nazionale di Fisica Nucleare (ICSC, NextGenerationEU); Japan: Japan Society for the Promotion of Science (Grants No. JSPS KAKENHI 22H01227, No. JSPS KAKENHI 22KK0227, No. JSPS KAKENHI JP21H05085, and No. JSPS KAKENHI JP22H04944); Netherlands: Netherlands Organisation for Scientific Research (NWO Veni 2020\u2014VI.Veni.202.179); Norway: Research Council of Norway (Grant No. RCN-314472); Poland: Polish National Agency for Academic Exchange (Grant No. PPN/PPO/2020/1/00002/U/00001), Polish National Science Centre (Grants No. NCN 2021/42/E/ST2/00350, No. NCN OPUS nr 2022/47/B/ST2/03059, No. NCN UMO-2019/34/E/ST2/00393, No. UMO-2020/37/B/ST2/01043, and No. UMO-2022/47/O/ST2/00148); Slovenia: Slovenian Research Agency (ARIS Grant No. J1-3010); Spain: BBVA Foundation (Grant No. LEO22-1-603), Generalitat Valenciana (Artemisa, FEDER, IDIFEDER/2018/048), Ministry of Science and Innovation (Grants No. RYC2019-028510-I and No. RYC2020-030254-I), PROMETEO and GenT Programmes Generalitat Valenciana (Grants No. CIDEGENT/2019/023 and No. CIDEGENT/2019/027); Sweden: Swedish Research Council (Grant No. VR 2022-03845), Knut and Alice Wallenberg Foundation (Grant No. KAW 2022.0358); Switzerland: Swiss National Science Foundation (Grant No. SNSF\u2014PCEFP2_194658); United Kingdom: Leverhulme Trust (Leverhulme Trust Grant No. RPG-2020-004); USA: Neubauer Family Foundation. 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; MEYS CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRI, Greece; 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 MIZ\u0160, Slovenia; DSI/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF, and Cantons of Bern and Geneva, Switzerland; MOST, Taipei; TENMAK, T\u00FCrkiye; STFC, United Kingdom; DOE and NSF, USA. 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, ICSC-NextGenerationEU, and Marie Sk\u0142odowska-Curie Actions, European Union; Investissements d\u2019Avenir Labex, Investissements d\u2019Avenir Idex, and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales, and Aristeia programs co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and MINERVA, Israel; Norwegian Financial Mechanism 2014\u20132021, Norway; NCN and NAWA, Poland; La Caixa Banking Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO, and GenT Programmes Generalitat Valenciana, Spain; G\u00F6ran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom. In addition, individual members wish to acknowledge support from CERN: European Organization for Nuclear Research (CERN PJAS); Chile: Agencia Nacional de Investigaci\u00F3n y Desarrollo (Grants No. FONDECYT 1190886, No. FONDECYT 1210400, and No. FONDECYT 1230987); China: National Natural Science Foundation of China (Grants No. NSFC\u201412175119 and No. NSFC 12275265); European Union: European Research Council (Grants No. ERC\u2014948254 and No. ERC 101089007), Horizon 2020 Framework Programme (Grant No. MUCCA\u2014CHIST-ERA-19-XAI-00), Italian Center for High Performance Computing, Big Data and Quantum Computing (ICSC, NextGenerationEU); France: Agence Nationale de la Recherche (Grants No. ANR-20-CE31-0013 and No. ANR-21-CE31-0022), Investissements d\u2019Avenir Labex (Grant No. ANR-11-LABX-0012); Germany: Baden-W\u00FCrttemberg Stiftung (BW Stiftung-Postdoc Eliteprogramme), Deutsche Forschungsgemeinschaft (Grants No. DFG\u2014469666862 and No. DFG\u2014CR 312/5-2); Italy: Istituto Nazionale di Fisica Nucleare (ICSC, NextGenerationEU); Japan: Japan Society for the Promotion of Science (Grants No. JSPS KAKENHI 22H01227, No. JSPS KAKENHI 22KK0227, No. JSPS KAKENHI JP21H05085, and No. JSPS KAKENHI JP22H04944); Netherlands: Netherlands Organisation for Scientific Research (NWO Veni 2020\u2014VI.Veni.202.179); Norway: Research Council of Norway (Grant No. RCN-314472); Poland: Polish National Agency for Academic Exchange (Grant No. PPN/PPO/2020/1/00002/U/00001), Polish National Science Centre (Grants No. NCN 2021/42/E/ST2/00350, No. NCN OPUS nr 2022/47/B/ST2/03059, No. NCN UMO-2019/34/E/ST2/00393, No. UMO-2020/37/B/ST2/01043, and No. UMO-2022/47/O/ST2/00148); Slovenia: Slovenian Research Agency (ARIS Grant No. J1-3010); Spain: BBVA Foundation (Grant No. LEO22-1-603), Generalitat Valenciana (Artemisa, FEDER, IDIFEDER/2018/048), Ministry of Science and Innovation (Grants No. RYC2019-028510-I and No. RYC2020-030254-I), PROMETEO and GenT Programmes Generalitat Valenciana (Grants No. CIDEGENT/2019/023 and No. CIDEGENT/2019/027); Sweden: Swedish Research Council (Grant No. VR 2022-03845), Knut and Alice Wallenberg Foundation (Grant No. KAW 2022.0358); Switzerland: Swiss National Science Foundation (Grant No. SNSF\u2014PCEFP2_194658); United Kingdom: Leverhulme Trust (Leverhulme Trust Grant No. RPG-2020-004); USA: Neubauer Family Foundation.
PY - 2024/7/1
Y1 - 2024/7/1
N2 - A search for charged-lepton-flavor violating Formula Presented (Formula Presented, Formula Presented) interactions is presented, considering both top-quark production and decay. The data analyzed correspond to Formula Presented of proton-proton collisions at a center-of-mass energy of Formula Presented recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying Formula Presented-lepton and at least one jet, with exactly one Formula Presented-tagged jet, produced by a Formula Presented interaction. Agreement with the Standard Model expectation within 1.6 standard deviations is observed, and limits are set at the 95% confidence level (CL) on the charged-lepton-flavor violation branching ratio of Formula Presented. An effective field theory interpretation is performed yielding 95% CL limits on Wilson coefficients, dependent on the flavor of the associated light quark and the Lorentz structure of the coupling. These range from Formula Presented for Formula Presented to Formula Presented for Formula Presented. An additional interpretation is performed for scalar leptoquark production inducing charged-lepton-flavor violation, with fixed intergenerational couplings. Upper limits on leptoquark coupling strengths are set at the 95% CL, ranging from Formula Presented to Formula Presented for leptoquark masses between 0.5 and 2.0 TeV.
AB - A search for charged-lepton-flavor violating Formula Presented (Formula Presented, Formula Presented) interactions is presented, considering both top-quark production and decay. The data analyzed correspond to Formula Presented of proton-proton collisions at a center-of-mass energy of Formula Presented recorded with the ATLAS detector at the Large Hadron Collider. The analysis targets events containing two muons with the same electric charge, a hadronically decaying Formula Presented-lepton and at least one jet, with exactly one Formula Presented-tagged jet, produced by a Formula Presented interaction. Agreement with the Standard Model expectation within 1.6 standard deviations is observed, and limits are set at the 95% confidence level (CL) on the charged-lepton-flavor violation branching ratio of Formula Presented. An effective field theory interpretation is performed yielding 95% CL limits on Wilson coefficients, dependent on the flavor of the associated light quark and the Lorentz structure of the coupling. These range from Formula Presented for Formula Presented to Formula Presented for Formula Presented. An additional interpretation is performed for scalar leptoquark production inducing charged-lepton-flavor violation, with fixed intergenerational couplings. Upper limits on leptoquark coupling strengths are set at the 95% CL, ranging from Formula Presented to Formula Presented for leptoquark masses between 0.5 and 2.0 TeV.
UR - https://www.scopus.com/pages/publications/85200542805
UR - https://www.scopus.com/pages/publications/85200542805#tab=citedBy
U2 - 10.1103/PhysRevD.110.012014
DO - 10.1103/PhysRevD.110.012014
M3 - Article
AN - SCOPUS:85200542805
SN - 2470-0010
VL - 110
JO - Physical Review D
JF - Physical Review D
IS - 1
M1 - 012014
ER -