944 results on '"Costa, María José"'
Search Results
2. Supported Cu catalysts on UiO-66 toward enhanced methanol selectivity by CO2 hydrogenation: Effect of Cu loading
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Candian Firmino Marcos, Francielle, Fonseca Costa, Maria Jose, L. Catuzo, Gabriel, Angeli de Moraes, Daniel, de Oliveira Junior, Marcos, Mastelaro, Valmor Roberto, Mansur Assaf, José, Giudici, Reinaldo, and Moreira Assaf, Elisabete
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- 2023
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3. Evaluation of anthropometry as an alternative to DXA as predictor of low bone mineral density in children and adolescents with cystic fibrosis
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Silva Júnior, Celso Costa da, Marques Queiroz, Dayanna Joyce, de Paiva, Maria Paula, Lopes, Marina Travassos, da Cunha Costa, Manoel, de Matos Bezerra, Patrícia Gomes, de Carvalho Costa, Maria José, Silva, Alexandre Sérgio, Filho, João Modesto, Braga Cartaxo, Constantino Giovanni, and da Conceição Rodrigues Gonçalves, Maria
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- 2021
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4. Impact of sitagliptin on endometrial mesenchymal stem-like progenitor cells: A randomised, double-blind placebo-controlled feasibility trial
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Tewary, Shreeya, Lucas, Emma S., Fujihara, Risa, Kimani, Peter K., Polanco, Angela, Brighton, Paul J., Muter, Joanne, Fishwick, Katherine J., Da Costa, Maria José Minhoto Diniz, Ewington, Lauren J., Lacey, Lauren, Takeda, Satoru, Brosens, Jan J., and Quenby, Siobhan
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- 2020
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5. Structural and functional composition of fish communities associated to Zostera noltii meadows as a response to natural habitat recovery
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Castro, Nuno, Penedos, Cláudia, Félix, Pedro, Chainho, Paula, Pereira, Tadeu, Costa, Maria José, Almeida, Armando J., Adão, Helena, and Costa, José Lino
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- 2019
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6. Bacteriophage ϕIBB-PF7A loaded on sodium alginate-based films to prevent microbial meat spoilage
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Alves, Diana, Marques, Arlete, Milho, Catarina, Costa, Maria José, Pastrana, Lorenzo M., Cerqueira, Miguel A., and Sillankorva, Sanna Maria
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- 2019
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7. Board of directors and business transformation: a bibliometric analysis.
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de Enrique Arnau, Luis and Pinillos-Costa, María José
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GENDER nonconformity ,BIBLIOMETRICS ,RESEARCH questions ,LITERARY sources ,INTERNET publishing - Abstract
Copyright of European Journal of Management & Business Economics is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2024
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8. Analysis of the DNA methylation profiles of miR-9-3, miR-34a, and miR-137 promoters in patients with diabetic retinopathy and nephropathy
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dos Santos Nunes, Mayara Karla, Silva, Alexandre Sérgio, Wanderley de Queiroga Evangelista, Isabella, Modesto Filho, João, Alves Pegado Gomes, Cecília Neta, Ferreira do Nascimento, Rayner Anderson, Pordeus Luna, Rafaella Cristhine, de Carvalho Costa, Maria José, Paulo de Oliveira, Naila Francis, and Camati Persuhn, Darlene
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- 2018
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9. Effect of acidity in the removal-degradation of benzene in water catalyzed by Co-MCM-41 in medium containing hydrogen peroxide
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Farias, Mirna Ferreira, Domingos, Yldeney Silva, Turolla Fernandes, Glauber José, Castro, Francisco Laerte, Fernandes, Valter José, Jr., Fonseca Costa, Maria José, and Araujo, Antonio Souza
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- 2018
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10. Nekton Use of Salt Marsh Creeks in the Upper Tejo Estuary
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Salgado, João P., Cabral, Henrique N., Costa, Maria José, and Deegan, Linda
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- 2004
11. Board of directors and business transformation: a bibliometric analysis
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de Enrique Arnau, Luis, primary and Pinillos-Costa, María José, additional
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- 2023
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- View/download PDF
12. Measurement of substructure-dependent jet suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
The ATLAS detector at the Large Hadron Collider has been used to measure jet substructure modification and suppression in Pb+Pb collisions at a nucleon–nucleon center-of-mass energy s = 5.02 TeV in comparison with proton–proton (pp) collisions at √s = 5.02 TeV. The Pb+Pb data, collected in 2018, have an integrated luminosity of 1.72 nb, while the ppdata, collected in 2017, have an integrated luminosity of 260 pb. Jets used in this analysis are clustered using the anti-k algorithm with a radius parameter R = 0.4. The jet constituents, defined by both tracking and calorimeter information, are used to determine the angular scale r of the first hard splitting inside the jet by reclustering them using the Cambridge–Aachen algorithm and employing the soft-drop grooming technique. The nuclear modification factor, R, used to characterize jet suppression in Pb+Pb collisions, is presented differentially in r, jet transverse momentum, and in intervals of collision centrality. The R value is observed to depend significantly on jet r. Jets produced with the largest measured r are found to be twice as suppressed as those with the smallest r in central Pb+Pb collisions. The R values do not exhibit a strong variation with jet p in any of the r intervals. The r and p dependence of jet R is qualitatively consistent with a picture of jet quenching arising from coherence and provides the most direct evidence in support of this approach.
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- 2023
13. Search for a light charged Higgs boson in t -> H±b decays, with H± -> cb, in the lepton plus jets final state in proton-proton collisions at root s=13 TeV with the ATLAS detector
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Estrada, Oscar, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Mamuzic, Judita, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, L, Moreno Llácer, María, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Estrada, Oscar, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Mamuzic, Judita, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, L, Moreno Llácer, María, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search for a charged Higgs boson, H-+/-, produced in top-quark decays, t -> H(+/-)b, is presented. The search targets H-+/- decays into a bottom and a charm quark, H-+/- -> cb. The analysis focuses on a selection enriched in top-quark pair production, where one top quark decays into a leptonically decaying W boson and a bottom quark, and the other top quark decays into a charged Higgs boson and a bottom quark. This topology leads to a lepton-plus-jets final state, characterised by an isolated electron or muon and at least four jets. The search exploits the high multiplicity of jets containing b-hadrons, and deploys a neural network classifier that uses the kinematic differences between the signal and the background. The search uses a dataset of proton-proton collisions collected at a centre-of-mass energy root s = 13TeV between 2015 and 2018 with the ATLAS detector at CERN's Large Hadron Collider, amounting to an integrated luminosity of 139 fb(-1). Observed (expected) 95% confidence-level upper limits between 0.15% (0.09%) and 0.42% (0.25%) are derived for the product of branching fractions B( t -> H-+/- b) x B( H +/- -> cb) for charged Higgs boson masses between 60 and 160 GeV, assuming the SM production of the top-quark pairs.
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- 2023
14. Search for resonant WZ production in the fully leptonic final state in proton–proton collisions at √s=13 TeV with the ATLAS detector
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search for a WZ resonance, in the fully leptonic final state (electrons or muons), is performed using 139 fb of data collected at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The results are interpreted in terms of a singly charged Higgs boson of the Georgi–Machacek model, produced by WZ fusion, and of a Heavy Vector Triplet, with the resonance produced by WZ fusion or the Drell–Yan process. No significant excess over the Standard Model prediction is observed and limits are set on the production cross-section times branching ratio as a function of the resonance mass for these processes.
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- 2023
15. Search for heavy Majorana or Dirac neutrinos and right-handed W gauge bosons in final states with charged leptons and jets in pp collisions at root s=13 TeV with the ATLAS detector
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search for heavy right-handed Majorana or Dirac neutrinos N-R and heavy right-handed gauge bosons W-R is performed in events with energetic electrons or muons, with the same or opposite electric charge, and energetic jets. The search is carried out separately for topologies of clearly separated final-state products (resolved channel) and topologies with boosted final states with hadronic and/or leptonic products partially overlapping and reconstructed as a large-radius jet (boosted channel). The events are selected from pp collision data at the LHC with an integrated luminosity of 139 fb(-1) collected by the ATLAS detector at root s = 13 TeV. No significant deviations from the Standard Model predictions are observed. The results are interpreted within the theoretical framework of a left-right symmetric model, and lower limits are set on masses in the heavy right-handed W-R boson and N-R plane. The excluded region extends to about m(W-R) = 6.4 TeV for both Majorana and Dirac N-R neutrinos at m(N-R) < 1 TeV. N-R with masses of less than 3.5 (3.6) TeV are excluded in the electron (muon) channel at m(W-R) = 4.8 TeV for the Majorana neutrinos, and limits of m(N-R) up to 3.6 TeV for m(W-R) = 5.2 (5.0) TeV in the electron (muon) channel are set for the Dirac neutrinos. These constitute the most stringent exclusion limits to date for the model considered.
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- 2023
16. Performance of the reconstruction of large impact parameter tracks in the inner detector of ATLAS
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
Searches for long-lived particles (LLPs) are among the most promising avenues for discovering physics beyond the Standard Model at the Large Hadron Collider (LHC). However, displaced signatures are notoriously difficult to identify due to their ability to evade standard object reconstruction strategies. In particular, the ATLAS track reconstruction applies strict pointing requirements which limit sensitivity to charged particles originating far from the primary interaction point. To recover efficiency for LLPs decaying within the tracking detector volume, the ATLAS Collaboration employs a dedicated large-radius tracking (LRT) passwith loosened pointing requirements. During Run 2 of the LHC, the LRT implementation produced many incorrectly reconstructed tracks and was therefore only deployed in small subsets of events. In preparation for LHC Run 3, ATLAS has significantly improved both standard and large-radius track reconstruction performance, allowing for LRT to run in all events. This development greatly expands the potential phase-space of LLP searches and streamlines LLP analysis workflows. This paper will highlight the above achievement and report on the readiness of the ATLAS detector for track-based LLP searches in Run 3.
- Published
- 2023
17. Correlations between flow and transverse momentum in Xe + Xe and Pb + Pb collisions at the LHC with the ATLAS detector: A probe of the heavy-ion initial state and nuclear deformation
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
The correlations between flow harmonics v for n = 2, 3, and 4 and mean transverse momentum [p] in Xe + Xe and Pb + Pb collisions at s = 5.44 and 5.02 TeV, respectively, are measured using charged particles with the ATLAS detector. The correlations are potentially sensitive to the shape and size of the initial geometry, nuclear deformation, and initial momentum anisotropy. The effects from nonflow and centrality fluctuations are minimized, respectively, via a subevent cumulant method and an event-activity selection based on particle production at very forward rapidity. The v-[p] correlations show strong dependencies on centrality, harmonic number n, p, and pseudorapidity range. Current models qualitatively describe the overall centrality- and system-dependent trends but fail to quantitatively reproduce all features of the data. In central collisions, where models generally show good agreement, the v-[p] correlations are sensitive to the triaxiality of the quadruple deformation. Comparison of the model with the Pb + Pb and Xe + Xe data confirms that the Xe nucleus is a highly deformed triaxial ellipsoid that has neither a prolate nor oblate shape. This provides strong evidence for a triaxial deformation of the Xe nucleus from high-energy heavy-ion collisions.
- Published
- 2023
18. Measurements of W+W- production in decay topologies inspired by searches for electroweak supersymmetry
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
This paper presents a measurement of fiducial and differential cross-sections for WW production in proton–proton collisions at s=13 TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding to an integrated luminosity of 139 fb . Events with exactly one electron, one muon and no hadronic jets are studied. The fiducial region in which the measurements are performed is inspired by searches for the electroweak production of supersymmetric charginos decaying to two-lepton final states. The selected events have moderate values of missing transverse momentum and the ‘stransverse mass’ variable m , which is widely used in searches for supersymmetry at the LHC. The ranges of these variables are chosen so that the acceptance is enhanced for direct WW production and suppressed for production via top quarks, which is treated as a background. The fiducial cross-section and particle-level differential cross-sections for six variables are measured and compared with two theoretical SM predictions from perturbative QCD calculations.
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- 2023
19. Constraints on spin-0 dark matter mediators and invisible Higgs decays using ATLAS 13 TeV pp collision data with two top quarks and missing transverse momentum in the final state
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
This paper presents a statistical combination of searches targeting final states with two top quarks and invisible particles, characterised by the presence of zero, one or two leptons, at least one jet originating from a b-quark and missing transverse momentum. The analyses are searches for phenomena beyond the Standard Model consistent with the direct production of dark matter in pp collisions at the LHC, using 139 fb of data collected with the ATLAS detector at a centre-of-mass energy of 13 TeV. The results are interpreted in terms of simplified dark matter models with a spin-0 scalar or pseudoscalar mediator particle. In addition, the results are interpreted in terms of upper limits on the Higgs boson invisible branching ratio, where the Higgs boson is produced according to the Standard Model in association with a pair of top quarks. For scalar (pseudoscalar) dark matter models, with all couplings set to unity, the statistical combination extends the mass range excluded by the best of the individual channels by 50 (25) GeV, excluding mediator masses up to 370 GeV. In addition, the statistical combination improves the expected coupling exclusion reach by 14% (
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- 2023
20. Measurements of differential cross sections of Higgs boson production through gluon fusion in the H? WW*? e?µ? final state at √s=13 TeV with the ATLAS detector
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, M., Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, M., Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
Higgs boson production via gluon–gluon fusion is measured in the WW? e?µ? decay channel. The dataset utilized corresponds to an integrated luminosity of 139 fb collected by the ATLAS detector from s=13 TeV proton–proton collisions delivered by the Large Hadron Collider between 2015 and 2018. Differential cross sections are measured in a fiducial phase space restricted to the production of at most one additional jet. The results are consistent with Standard Model expectations, derived using different Monte Carlo generators.
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- 2023
21. Measurement of the Higgs boson mass in the H → ZZ⁎ → 4ℓ decay channel using 139 fb−1 of s=13 TeV pp collisions recorded by the ATLAS detector at the LHC
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
The mass of the Higgs boson is measured in the H→ZZ→4ℓ decay channel. The analysis uses proton–proton collision data from the Large Hadron Collider at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector between 2015 and 2018, corresponding to an integrated luminosity of 139 fb. The measured value of the Higgs boson mass is 124.99±0.18(stat.)±0.04(syst.) GeV. In final states with muons, this measurement benefits from an improved momentum-scale calibration relative to that adopted in previous publications. The measurement also employs an analytic model that takes into account the invariant-mass resolution of the four-lepton system on a per-event basis and the output of a deep neural network discriminating signal from background events. This measurement is combined with the corresponding measurement using 7 and 8 TeV pp collision data, resulting in a Higgs boson mass of 124.94±0.17(stat.)±0.03(syst.) GeV.
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- 2023
22. Measurement of the nuclear modification factor of b-jets in 5.02 TeV Pb+Pb collisions with the ATLAS detector
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
This paper presents a measurement of b-jet production in Pb+Pb and pp collisions at sNN=5.02 TeV with the ATLAS detector at the LHC. The measurement uses 260 pb of pp collisions collected in 2017 and 1.4 nb of Pb+Pb collisions collected in 2018. In both collision systems, jets are reconstructed via the anti- k algorithm. The b-jets are identified from a sample of jets containing muons from the semileptonic decay of b-quarks using template fits of the muon momentum relative to the jet axis. In pp collisions, b-jets are reconstructed for radius parameters R= 0.2 and R= 0.4 , and only R= 0.2 jets are used in Pb+Pb collisions. For comparison, inclusive R= 0.2 jets are also measured using 1.7 nb of Pb+Pb collisions collected in 2018 and the same pp collision data as the b-jet measurement. The nuclear modification factor, R , is calculated for both b-jets and inclusive jets with R= 0.2 over the transverse momentum range of 80–290 GeV. The nuclear modification factor for b-jets decreases from peripheral to central collisions. The ratio of the b-jet R to inclusive jet R is also presented and suggests that the R for b-jets is larger than that for inclusive jets in central Pb+Pb collisions. The measurements are compared with theoretical calculations and suggest a role for mass and colour-charge effects in partonic energy loss in heavy-ion collisions.
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- 2023
23. Luminosity determination in pp collisions at √s=13 TeV using the ATLAS detector at the LHC
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
The luminosity determination for the ATLAS detector at the LHC during Run 2 is presented, with pp collisions at a centre-of-mass energy s=13 TeV. The absolute luminosity scale is determined using van der Meer beam separation scans during dedicated running periods in each year, and extrapolated to the physics data-taking regime using complementary measurements from several luminosity-sensitive detectors. The total uncertainties in the integrated luminosity for each individual year of data-taking range from 0.9% to 1.1%, and are partially correlated between years. After standard data-quality selections, the full Run 2 pp data sample corresponds to an integrated luminosity of 140.1 ± 1.2 fb , i.e. an uncertainty of 0.83%. A dedicated sample of low-pileup data recorded in 2017–2018 for precision Standard Model physics measurements is analysed separately, and has an integrated luminosity of 338.1 ± 3.1 pb .
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- 2023
24. Observation of gauge boson joint-polarisation states in W±Z production from pp collisions at s=13 TeV with the ATLAS detector
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), https://ror.org/02gfc7t72, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
Measurements of joint-polarisation states of W and Z gauge bosons in WZ production are presented. The data set used corresponds to an integrated luminosity of 139 fb of proton–proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. The WZ candidate events are reconstructed using leptonic decay modes of the gauge bosons into electrons and muons. The simultaneous pair-production of longitudinally polarised vector bosons is measured for the first time with a significance of 7.1 standard deviations. The measured joint helicity fractions integrated over the fiducial region are f=0.067±0.010, f=0.110±0.029, f=0.179±0.023 and f=0.644±0.032, in agreement with the next-to-leading-order Standard Model predictions. Individual helicity fractions of the W and Z bosons are also measured and found to be consistent with joint helicity fractions within the expected amounts of correlation. Both the joint and individual helicity fractions are also measured separately in WZ and WZ events. Inclusive and differential cross sections for several kinematic observables sensitive to polarisation are presented.
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- 2023
25. Strong Constraints on Jet Quenching in Centrality-Dependent p+Pb Collisions at 5.02 TeV from ATLAS
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
Jet quenching is the process of color-charged partons losing energy via interactions with quark-gluon plasma droplets created in heavy-ion collisions. The collective expansion of such droplets is well described by viscous hydrodynamics. Similar evidence of collectivity is consistently observed in smaller collision systems, including p p and p + Pb collisions. In contrast, while jet quenching is observed in Pb + Pb collisions, no evidence has been found in these small systems to date, raising fundamental questions about the nature of the system created in these collisions. The ATLAS experiment at the Large Hadron Collider has measured the yield of charged hadrons correlated with reconstructed jets in 0.36 nb - 1 of p + Pb and 3.6 pb - 1 of p p collisions at 5.02 TeV. The yields of charged hadrons with p T ch > 0.5 GeV near and opposite in azimuth to jets with p T jet > 30 or 60 GeV, and the ratios of these yields between p + Pb and p p collisions, I p Pb , are reported. The collision centrality of p + Pb events is categorized by the energy deposited by forward neutrons from the struck nucleus. The I p Pb values are consistent with unity within a few percent for hadrons with p T ch > 4 GeV at all centralities. These data provide new, strong constraints that preclude almost any parton energy loss in central p + Pb collisions.
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- 2023
26. Measurement of the charge asymmetry in top-quark pair production in association with a photon with the ATLAS experiment
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A measurement of the charge asymmetry in top-quark pair (tt¯) production in association with a photon is presented. The measurement is performed in the single-lepton tt¯ decay channel using proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider at CERN at a centre-of-mass-energy of 13 TeV during the years 2015–2018, corresponding to an integrated luminosity of 139 fb. The charge asymmetry is obtained from the distribution of the difference of the absolute rapidities of the top quark and antiquark using a profile likelihood unfolding approach. It is measured to be A=−0.003±0.029 in agreement with the Standard Model expectation.
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- 2023
27. Observation of Single-Top-Quark Production in Association with a Photon Using the ATLAS Detector
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
This Letter reports the observation of single top quarks produced together with a photon, which directly probes the electroweak coupling of the top quark. The analysis uses 139 fb^{-1} of 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. Requiring a photon with transverse momentum larger than 20 GeV and within the detector acceptance, the fiducial cross section is measured to be 688±23(stat) _{-71}^{+75}(syst) fb, to be compared with the standard model prediction of 515_{-42}^{+36} fb at next-to-leading order in QCD.
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- 2023
28. Combined Measurement of the Higgs Boson Mass from the Formula Presented and Formula Presented Decay Channels with the ATLAS Detector Using Formula Presented, 8, and 13 TeV Formula Presented Collision Data
- Author
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Aikot, Arya, Amos, K.R., Aparisi, Pozo, Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R, Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, L, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Aikot, Arya, Amos, K.R., Aparisi, Pozo, Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R, Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, L, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A measurement of the mass of the Higgs boson combining the Formula Presented and Formula Presented decay channels is presented. The result is based on Formula Presented of proton-proton collision data collected by the ATLAS detector during LHC run 2 at a center-of-mass energy of 13 TeV combined with the run 1 ATLAS mass measurement, performed at center-of-mass energies of 7 and 8 TeV, yielding a Higgs boson mass of Formula Presented. This corresponds to a 0.09% precision achieved on this fundamental parameter of the Standard Model of particle physics.
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- 2023
29. Measurement of the Sensitivity of Two-Particle Correlations in pp Collisions to the Presence of Hard Scatterings
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A key open question in the study of multiparticle production in high-energy pp collisions is the relationship between the "ridge"-i.e., the observed azimuthal correlations between particles in the underlying event that extend over all rapidities-and hard or semihard scattering processes. In particular, it is not known whether jets or their soft fragments are correlated with particles in the underlying event. To address this question, two-particle correlations are measured in pp collisions at sqrt[s]=13 TeV using data collected by the ATLAS experiment at the LHC, with an integrated luminosity of 15.8 pb^{-1}, in two different configurations. In the first case, charged particles associated with jets are excluded from the correlation analysis, while in the second case, correlations are measured between particles within jets and charged particles from the underlying event. Second-order flow coefficients, v_{2}, are presented as a function of event multiplicity and transverse momentum. These measurements show that excluding particles associated with jets does not affect the measured correlations. Moreover, particles associated with jets do not exhibit any significant azimuthal correlations with the underlying event, ruling out hard processes contributing to the ridge.
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- 2023
30. Measurement of Suppression of Large-Radius Jets and Its Dependence on Substructure in Pb+Pb Collisions at Formula Presented with the ATLAS Detector
- Author
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
This letter presents a measurement of the nuclear modification factor of large-radius jets in Formula Presented Formula Presented collisions by the ATLAS experiment. The measurement is performed using Formula Presented and Formula Presented of Formula Presented and Formula Presented data, respectively. The large-radius jets are reconstructed with the anti-Formula Presented algorithm using a radius parameter of Formula Presented, by reclustering anti-Formula Presented Formula Presented jets, and are measured over the transverse momentum (Formula Presented) kinematic range of Formula Presented and absolute pseudorapidity Formula Presented. The large-radius jet constituents are further reclustered using the Formula Presented algorithm in order to obtain the splitting parameters, Formula Presented and Formula Presented, which characterize the transverse momentum scale and angular separation for the hardest splitting in the jet, respectively. The nuclear modification factor, Formula Presented, obtained by comparing the Formula Presented jet yields to those in Formula Presented collisions, is measured as a function of jet transverse momentum (Formula Presented) and Formula Presented or Formula Presented. A significant difference in the quenching of large-radius jets having single subjet and those with more complex substructure is observed. Systematic comparison of jet suppression in terms of Formula Presented for different jet definitions is also provided. Presented results support the hypothesis that jets with hard internal splittings lose more energy through quenching and provide a new perspective for understanding the role of jet structure in jet suppression.
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- 2023
31. Measurements of observables sensitive to colour reconnection in tt¯ events with the ATLAS detector at √s= 13 TeV
- Author
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, L, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, L, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A measurement of observables sensitive to effects of colour reconnection in top-quark pair-production events is presented using 139 fb of 13 TeV proton–proton collision data collected by the ATLAS detector at the LHC. Events are selected by requiring exactly one isolated electron and one isolated muon with opposite charge and two or three jets, where exactly two jets are required to be b-tagged. For the selected events, measurements are presented for the charged-particle multiplicity, the scalar sum of the transverse momenta of the charged particles, and the same scalar sum in bins of charged-particle multiplicity. These observables are unfolded to the stable-particle level, thereby correcting for migration effects due to finite detector resolution, acceptance and efficiency effects. The particle-level measurements are compared with different colour reconnection models in Monte Carlo generators. These measurements disfavour some of the colour reconnection models and provide inputs to future optimisation of the parameters in Monte Carlo generators.
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- 2023
32. New techniques for jet calibration with the ATLAS detector
- Author
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Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A determination of the jet energy scale is presented using proton-proton collision data with a centre-of-mass energy of root s = 13 TeV, corresponding to an integrated luminosity of 140 fb(-1) collected using the ATLAS detector at the LHC. Jets are reconstructed using the ATLAS particle-flow method that combines charged-particle tracks and topo-clusters formed from energy deposits in the calorimeter cells. The anti-kt jet algorithm with radius parameter R = 0.4 is used to define the jet. Novel jet energy scale calibration strategies developed for the LHC Run 2 are reported that lay the foundation for the jet calibration in Run 3. Jets are calibrated with a series of simulation-based corrections, including state-of-the-art techniques in jet calibration such as machine learning methods and novel in situ calibrations to achieve better performance than the baseline calibration derived using up to 81 fb(-1) of Run 2 data. The performance of these new techniques is then examined in the in situ measurements by exploiting the transverse momentum balance between a jet and a reference object. The b-quark jet energy scale using particle flow jets is measured for the first time with around 1% precision using gamma+jet events.
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- 2023
33. A search for heavy Higgs bosons decaying into vector bosons in same-sign two-lepton final states in pp collisions at √s = 13 TeV with the ATLAS detector
- Author
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search for heavy Higgs bosons produced in association with a vector boson and decaying into a pair of vector bosons is performed in final states with two leptons (electrons or muons) of the same electric charge, missing transverse momentum and jets. A data sample of proton–proton collisions at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider between 2015 and 2018 is used. The data correspond to a total integrated luminosity of 139 fb. The observed data are in agreement with Standard Model background expectations. The results are interpreted using higher-dimensional operators in an effective field theory. Upper limits on the production cross-section are calculated at 95% confidence level as a function of the heavy Higgs boson’s mass and coupling strengths to vector bosons. Limits are set in the Higgs boson mass range from 300 to 1500 GeV, and depend on the assumed couplings. The highest excluded mass for a heavy Higgs boson with the coupling combinations explored is 900 GeV. Limits on coupling strengths are also provided. [Figure not available: see fulltext.]
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- 2023
34. Search for heavy Higgs bosons with flavour-violating couplings in multi-lepton plus b-jets final states in pp collisions at 13 TeV with the ATLAS detector
- Author
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Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search for new heavy scalars with flavour-violating decays in final states with multiple leptons and b-tagged jets is presented. The results are interpreted in terms of a general two-Higgs-doublet model involving an additional scalar with couplings to the top-quark and the three up-type quarks (rho(tt),rho(tc), and rho(tu)). The targeted signals lead to final states with either a same-sign top-quark pair, three top-quarks, or four top-quarks. The search is based on a data sample of proton-proton collisions at root s = 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb(-1). Events are categorised depending on the multiplicity of light charged leptons (electrons or muons), total lepton charge, and a deep-neural-network output to enhance the purity of each of the signals. Masses of an additional scalar boson mH between 200- 630 GeV with couplings rho(tt) = 0.4, rho(tc) = 0.2, and rho(tu) = 0.2 are excluded at 95% confidence level. Additional interpretations are provided in models of R-parity violating supersymmetry, motivated by the recent flavour and ( g - 2) (mu) anomalies.
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- 2023
35. Search for flavour-changing neutral tqH interactions with H -> gamma gamma in pp collisions at root s=13 TeV using the ATLAS detector
- Author
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Aikot, Arya, Amos, K.R., Aparisi, Pozo, Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R, Lacasta Llácer, Carlos, Martí García, Salvador, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Aikot, Arya, Amos, K.R., Aparisi, Pozo, Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R, Lacasta Llácer, Carlos, Martí García, Salvador, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search for flavour-changing neutral interactions involving the top quark, the Higgs boson and an up-type quark q ( q = c, u) is presented. The proton-proton collision data set used, with an integrated luminosity of 139 fb(-1), was collected at root s = 13TeV by the ATLAS experiment at the Large Hadron Collider. Both the decay process t -> qH in tt production and the production process pp. tH, with the Higgs boson decaying into two photons, are investigated. No significant excess is observed and upper limits are set on the t. cH and the t. uH branching ratios of 4.3x10(-4) and 3.8x10(-4), respectively, at the 95% confidence level, while the expected limits in the absence of signal are 4.7x10(-4) and 3.9x10(-4). Combining this search with ATLAS searches in the H. t+ t- and H. b b final states yields observed (expected) upper limits on the t -> cH branching ratio of 5.8 x 10(-4) (3.0 x 10(-4)) at the 95% confidence level. The corresponding observed (expected) upper limit on the t -> uH branching ratio is 4.0 x 10(-4) (2.4 x 10(-4)).
- Published
- 2023
36. Search for displaced photons produced in exotic decays of the Higgs boson using 13 TeV pp collisions with the ATLAS detector
- Author
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American Physical Society, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, American Physical Society, Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search is performed for delayed and nonpointing photons originating from the displaced decay of a neutral long-lived particle (LLP). The analysis uses the full run 2 dataset of proton-proton collisions delivered by the LHC at a center-of-mass energy of Formula Presented between 2015 and 2018 and recorded by the ATLAS detector, corresponding to an integrated luminosity of Formula Presented. The capabilities of the ATLAS electromagnetic calorimeter are exploited to precisely measure the arrival times and trajectories of photons. The results are interpreted in a scenario where the LLPs are pair produced in exotic decays of the 125 GeV Higgs boson, and each LLP subsequently decays into a photon and a particle that escapes direct detection, giving rise to missing transverse momentum. No significant excess is observed above the expectation due to Standard Model background processes. The results are used to set upper limits on the branching ratio of the exotic decay of the Higgs boson. A model-independent limit is also set on the production of photons with large values of displacement and time delay.
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- 2023
37. Pursuit of paired dijet resonances in the Run 2 dataset with ATLAS
- Author
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Aikot, Arya, Amos, K.R., Aparisi, Pozo, Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R, Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Aikot, Arya, Amos, K.R., Aparisi, Pozo, Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R, Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valiente Moreno, Enrique, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
New particles with large masses that decay into hadronically interacting particles are predicted by many models of physics beyond the Standard Model. A search for a massive resonance that decays into pairs of dijet resonances is performed using 140 fb(-1) of proton-proton collisions at ffiffiffisp root s = 13 TeV recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. Resonances are searched for in the invariant mass of the tetrajet system, and in the average invariant mass of the pair of dijet systems. A data-driven background estimate is obtained by fitting the tetrajet and dijet invariant mass distributions with a four-parameter dijet function and a search for local excesses from resonant production of dijet pairs is performed. No significant excess of events beyond the Standard Model expectation is observed, and upper limits are set on the production cross sections of new physics scenarios.
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- 2023
38. Anomaly detection search for new resonances decaying into a Higgs boson and a generic new particle X in hadronic final states using Formula Presented pp collisions with the ATLAS detector
- Author
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Higón, Emilio, Lacasta Llácer, Carlos, Lozano Bahilo, José J., Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search is presented for a heavy resonance Formula Presented decaying into a Standard Model Higgs boson Formula Presented and a new particle Formula Presented in a fully hadronic final state. The full Large Hadron Collider run 2 dataset of proton-proton collisions at Formula Presented collected by the ATLAS detector from 2015 to 2018 is used and corresponds to an integrated luminosity of Formula Presented. The search targets the high Formula Presented-mass region, where the Formula Presented and Formula Presented have a significant Lorentz boost in the laboratory frame. A novel application of anomaly detection is used to define a general signal region, where events are selected solely because of their incompatibility with a learned background-only model. It is constructed using a jet-level tagger for signal-model-independent selection of the boosted Formula Presented particle, representing the first application of fully unsupervised machine learning to an ATLAS analysis. Two additional signal regions are implemented to target a benchmark Formula Presented decay into two quarks, covering topologies where the Formula Presented is reconstructed as either a single large-radius jet or two small-radius jets. The analysis selects Higgs boson decays into Formula Presented, and a dedicated neural-network-based tagger provides sensitivity to the boosted heavy-flavor topology. No significant excess of data over the expected background is observed, and the results are presented as upper limits on the production cross section Formula Presented) for signals with Formula Presented between 1.5 and 6 TeV and Formula Presented between 65 and 3000 GeV.
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- 2023
39. Search for nonresonant pair production of Higgs bosons in the Formula Presented final state in pp collisions at Formula Presented with the ATLAS detector
- Author
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European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, ATLAS Collaboration, European Commission, Ministerio de Ciencia e Innovación (España), Generalitat Valenciana, Agencia Estatal de Investigación (España), Amos, K.R., Aparisi, Pozo, J.A., Bailey, A.J., Bouchhar, Naseem, Cabrera, Susana, Cantero, Josu, Cardillo, Fabio, Castillo Mª Victoria, Chitishvili, Mariam, Costa, María José, Didenko, Mariia, Escobar, Carlos, Fiorini, L., Fullana, Esteban, Fuster, Juan, García García, Carmen, García Navarro, José Enrique, Gomez Delegido, A.J., González de la Hoz, Santiago, Gonzalvo Rodríguez, Galo Rafael, Guerrero Rojas, J.G.R., Lacasta Llácer, Carlos, Martí García, Salvador, Martinez Agullo, Pablo, Miralles López, Marcos, Mitsou, Vasiliki A., Monsonis Romero, Luis, Moreno Llácer, María, Muñoz Perez, David, Navarro Gonzalez, Josep, Poveda, Joaquín, Prades Ibañez, Alberto, Rubio Jiménez, Adrián, Ruiz Martínez, Arantxa, Sabatini, Paolo, Salt, José, Sanchez Sebastian, Victoria, Sayago Galvan, Ivan, Senthilkumar, Varsha, Soldevila, Urmila, Sánchez Martínez, Javier, Torró Pastor, Emma, Valero, Alberto, Valls Ferrer, Juan Antonio, Varriale, Lorenzo, Villaplana Pérez, Miguel, Vos, Marcel, and ATLAS Collaboration
- Abstract
A search for nonresonant Higgs boson pair production in the Formula Presented final state is presented. The analysis uses Formula Presented of Formula Presented collision data at Formula Presented collected with the ATLAS detector at the Large Hadron Collider, and targets both the gluon-gluon fusion and vector-boson fusion production modes. No evidence of the signal is found and the observed (expected) upper limit on the cross section for nonresonant Higgs boson pair production is determined to be 5.4 (8.1) times the Standard Model predicted cross section at 95% confidence level. Constraints are placed on modifiers to the Formula Presented and Formula Presented couplings. The observed (expected) Formula Presented constraints on the Formula Presented coupling modifier, Formula Presented, are determined to be Formula Presented (Formula Presented), while the corresponding constraints for the Formula Presented coupling modifier, Formula Presented, are Formula Presented (Formula Presented). In addition, constraints on relevant coefficients are derived in the context of the Standard Model effective field theory and Higgs effective field theory, and upper limits on the Formula Presented production cross section are placed in seven Higgs effective field theory benchmark scenarios.
- Published
- 2023
40. Fish communities’ response to implementation of restoring measures in a highly artificialized estuary
- Author
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Castro, Nuno, Félix, Pedro M., Neto, João M., Cabral, Henrique, Marques, João Carlos, Costa, Maria José, and Costa, José Lino
- Published
- 2016
- Full Text
- View/download PDF
41. Worldwide patterns of fish biodiversity in estuaries: Effect of global vs. local factors
- Author
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Pasquaud, Stéphanie, Vasconcelos, Rita P., França, Susana, Henriques, Sofia, Costa, Maria José, and Cabral, Henrique
- Published
- 2015
- Full Text
- View/download PDF
42. Characterization of Cre Recombinase Activity for In Vivo Targeting of Adipocyte Precursor Cells
- Author
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Krueger, Katherine C., Costa, Maria José, Du, Hongqing, and Feldman, Brian J.
- Published
- 2014
- Full Text
- View/download PDF
43. Abiotic control modelling of salt marsh sediments respiratory CO2 fluxes: application to increasing temperature scenarios
- Author
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Duarte, Bernardo, Freitas, Joana, Valentim, Juliana, Medeiros, João Paulo, Costa, José Lino, Silva, Helena, Dias, João Miguel, Costa, Maria José, Marques, João Carlos, and Caçador, Isabel
- Published
- 2014
- Full Text
- View/download PDF
44. Epidemiologic study of infertility: Report of the hospital centre of St. John, Porto
- Author
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Cardona, Diana, Leite, Renata, Carvalho, Andreia, Campos, Cíntia, Coelho, Cláudia, da Costa, Maria José Pinto, Sousa, Sónia, and Sousa, Mário
- Published
- 2014
- Full Text
- View/download PDF
45. Topographic complexity and the power to detect structural and functional changes in temperate reef fish assemblages: The need for habitat-independent sample sizes
- Author
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Pais, Miguel Pessanha, Henriques, Sofia, Costa, Maria José, and Cabral, Henrique Nogueira
- Published
- 2014
- Full Text
- View/download PDF
46. Heavy metal distribution and partitioning in the vicinity of the discharge areas of Lisbon drainage basins (Tagus Estuary, Portugal)
- Author
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Duarte, Bernardo, Silva, Gilda, Costa, José Lino, Medeiros, João Paulo, Azeda, Carla, Sá, Erica, Metelo, Inês, Costa, Maria José, and Caçador, Isabel
- Published
- 2014
- Full Text
- View/download PDF
47. Identifying functional homogeneity in a dynamic environment: Application to soft-substrate fish assemblages off the Portuguese coast
- Author
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Pais, Miguel Pessanha, Henriques, Sofia, Murta, Alberto G., Azevedo, Manuela, Costa, Maria José, and Cabral, Henrique N.
- Published
- 2014
- Full Text
- View/download PDF
48. Can different biological indicators detect similar trends of marine ecosystem degradation?
- Author
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Henriques, Sofia, Pais, Miguel Pessanha, Batista, Marisa Isabel, Teixeira, Célia M., Costa, Maria José, and Cabral, Henrique
- Published
- 2014
- Full Text
- View/download PDF
49. Structure and dynamics of a benthic invertebrate community in an intertidal area of the tagus estuary, western portugal: a six year data series
- Author
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Silva, Gilda, Costa, José Lino, de Almeida, Pedro Raposo, Costa, Maria José, Martens, K., editor, Queiroga, H., editor, Cunha, M. R., editor, Cunha, A., editor, Moreira, M. H., editor, Quintino, V., editor, Rodrigues, A. M., editor, Seroôdio, J., editor, and Warwick, R. M., editor
- Published
- 2006
- Full Text
- View/download PDF
50. Strength and time lag of relationships between human pressures and fish-based metrics used to assess ecological quality of estuarine systems
- Author
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Pasquaud, Stéphanie, Courrat, Anne, Fonseca, Vanessa F., Gamito, Rita, Gonçalves, Catarina I., Lobry, Jérémy, Lepage, Mario, Costa, Maria José, and Cabral, Henrique
- Published
- 2013
- Full Text
- View/download PDF
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