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Search for new physics using effective field theory in 13 TeV pp collision events that contain a top quark pair and a boosted Z or Higgs boson

A. Tumasyan1,b, W. Adam2, J. W. Andrejkovic2, T. Bergauer2, S. Chatterjee2, K. Damanakis2, M. Dragicevic2, A. Escalante Del Valle2, P. S. Hussain2 et al. (CMS Collaboration)

P. S. Hussain2, M. Jeitler2,c, N. Krammer2, L. Lechner2, D. Liko2, I. Mikulec2, P. Paulitsch2, F. M. Pitters2, J. Schieck2,c, R. Schöfbeck2, D. Schwarz2, S. Templ2, W. Waltenberger2, C.-E. Wulz2,c, M. R. Darwish3,d, T. Janssen3, T. Kello3,e, H. Rejeb Sfar3, P. Van Mechelen3, E. S. Bols4, J. D’Hondt4, A. De Moor4, M. Delcourt4, H. El Faham4, S. Lowette4, S. Moortgat4, A. Morton4, D. Müller4, A. R. Sahasransu4, S. Tavernier4, W. Van Doninck4, D. Vannerom4, B. Clerbaux5, G. De Lentdecker5, L. Favart5, D. Hohov5, J. Jaramillo5, K. Lee5, M. Mahdavikhorrami5, I. Makarenko5, A. Malara5, S. Paredes5, L. Pétré5, N. Postiau5, E. Starling5, L. Thomas5, M. Vanden Bemden5, C. Vander Velde5, P. Vanlaer5, D. Dobur6, J. Knolle6, L. Lambrecht6, G. Mestdach6, M. Niedziela6, C. Rendón6, C. Roskas6, A. Samalan6, K. Skovpen6, M. Tytgat6, N. Van Den Bossche6, B. Vermassen6, L. Wezenbeek6, A. Benecke7, G. Bruno7, F. Bury7, C. Caputo7, P. David7, C. Delaere7, I. S. Donertas7, A. Giammanco7, K. Jaffel7, Sa. Jain7, V. Lemaitre7, K. Mondal7, J. Prisciandaro7, A. Taliercio7, T. T. Tran7, P. Vischia7, S. Wertz7, G. A. Alves8, E. Coelho8, C. Hensel8, A. Moraes8, P. Rebello Teles8, W. L. Aldá Júnior9, M. Alves Gallo Pereira9, M. Barroso Ferreira Filho9, H. Brandao Malbouisson9, W. Carvalho9, J. Chinellato9,f, E. M. Da Costa9, G. G. Da Silveira9,g, D. De Jesus Damiao9, V. Dos Santos Sousa9, S. Fonseca De Souza9, J. Martins9,h, C. Mora Herrera9, K. Mota Amarilo9, L. Mundim9, H. Nogima9, A. Santoro9, S. M. Silva Do Amaral9, A. Sznajder9, M. Thiel9, F. Torres Da Silva De Araujo9,i, A. Vilela Pereira9, C. A. Bernardes10,g, L. Calligaris10, T. R. Fernandez Perez Tomei10, E. M. Gregores10, P. G. Mercadante10, S. F. Novaes10, Sandra S. Padula10, A. Aleksandrov11, G. Antchev11, R. Hadjiiska11, P. Iaydjiev11, M. Misheva11, M. Rodozov11, M. Shopova11, G. Sultanov11, A. Dimitrov12, T. Ivanov12, L. Litov12, B. Pavlov12, P. Petkov12, A. Petrov12, E. Shumka12, S. Thakur13, T. Cheng14, T. Javaid14,j, M. 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Müller46, M. Neukum46, M. Oh46, G. Quast46, K. Rabbertz46, J. Rauser46, M. Schnepf46, D. Seith46, I. Shvetsov46, H. J. Simonis46, N. Trevisani46, R. Ulrich46, J. van der Linden46, R. F. Von Cube46, M. Wassmer46, S. Wieland46, R. Wolf46, S. Wozniewski46, S. Wunsch46, X. Zuo46, G. Anagnostou47, P. Assiouras47, G. Daskalakis47, A. Kyriakis47, A. Stakia47, M. Diamantopoulou48, D. Karasavvas48, P. Kontaxakis48, A. Manousakis-Katsikakis48, A. Panagiotou48, I. Papavergou48, N. Saoulidou48, K. Theofilatos48, E. Tziaferi48, K. Vellidis48, I. Zisopoulos48, G. Bakas49, T. Chatzistavrou49, K. Kousouris49, I. Papakrivopoulos49, G. Tsipolitis49, A. Zacharopoulou49, K. Adamidis50, I. Bestintzanos50, I. Evangelou50, C. Foudas50, P. Gianneios50, C. Kamtsikis50, P. Katsoulis50, P. Kokkas50, P. G. Kosmoglou Kioseoglou50, N. Manthos50, I. Papadopoulos50, J. Strologas50, M. Csanád51, K. Farkas51, M. M. A. Gadallah51,aa, S. Lökös51,bb, P. Major51, K. Mandal51, G. Pásztor51, A. J. Rádl51,cc, O. 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Penzo151, C. Snyder151, E. Tiras151,llll, O. Amram152, B. Blumenfeld152, L. Corcodilos152, J. Davis152, A. V. Gritsan152, S. Kyriacou152, P. Maksimovic152, J. Roskes152, S. Sekhar152, M. Swartz152, T. Á. Vámi152, A. Abreu153, L. F. Alcerro Alcerro153, J. Anguiano153, P. Baringer153, A. Bean153, Z. Flowers153, T. Isidori153, S. Khalil153, J. King153, G. Krintiras153, M. Lazarovits153, C. Le Mahieu153, C. Lindsey153, J. Marquez153, N. Minafra153, M. Murray153, M. Nickel153, C. Rogan153, C. Royon153, R. Salvatico153, S. Sanders153, C. Smith153, Q. Wang153, J. Williams153, G. Wilson153, B. Allmond154, S. Duric154, A. Ivanov154, K. Kaadze154, D. Kim154, Y. Maravin154, T. Mitchell154, A. Modak154, K. Nam154, D. Roy154, F. Rebassoo155, D. Wright155, E. Adams156, A. Baden156, O. Baron156, A. Belloni156, A. Bethani156, S. C. Eno156, N. J. Hadley156, S. Jabeen156, R. G. Kellogg156, T. Koeth156, Y. Lai156, S. Lascio156, A. C. Mignerey156, S. Nabili156, C. Palmer156, C. Papageorgakis156, L. Wang156, K. Wong156, D. Abercrombie157, W. Busza157, I. A. Cali157, Y. Chen157, M. D’Alfonso157, J. Eysermans157, C. Freer157, G. Gomez-Ceballos157, M. Goncharov157, P. Harris157, M. Hu157, D. Kovalskyi157, J. Krupa157, Y.-J. Lee157, K. Long157, C. Mironov157, C. Paus157, D. Rankin157, C. Roland157, G. Roland157, Z. Shi157, G. S. F. Stephans157, J. Wang157, Z. Wang157, B. Wyslouch157, T. J. Yang157, R. M. Chatterjee158, A. Evans158, J. Hiltbrand158, Sh. Jain158, B. M. Joshi158, C. Kapsiak158, M. Krohn158, Y. Kubota158, J. Mans158, M. Revering158, R. Rusack158, R. Saradhy158, N. Schroeder158, N. Strobbe158, M. A. Wadud158, L. M. Cremaldi159, K. Bloom160, M. Bryson160, D. R. Claes160, C. Fangmeier160, L. Finco160, F. Golf160, C. Joo160, R. Kamalieddin160, I. Kravchenko160, I. Reed160, J. E. Siado160, G. R. Snow160,a, W. Tabb160, A. Wightman160, F. Yan160, A. G. Zecchinelli160, G. Agarwal161, H. Bandyopadhyay161, L. Hay161, I. Iashvili161, A. Kharchilava161, C. McLean161, M. Morris161, D. Nguyen161, J. Pekkanen161, S. Rappoccio161, A. Williams161, G. Alverson162, E. Barberis162, Y. Haddad162, Y. Han162, A. Krishna162, J. Li162, J. Lidrych162, G. Madigan162, B. Marzocchi162, D. M. Morse162, V. Nguyen162, T. Orimoto162, A. Parker162, L. Skinnari162, A. Tishelman-Charny162, T. Wamorkar162, B. Wang162, A. Wisecarver162, D. Wood162, S. Bhattacharya163, J. Bueghly163, Z. Chen163, A. Gilbert163, K. A. Hahn163, Y. Liu163, N. Odell163, M. H. Schmitt163, M. Velasco163, R. Band164, R. Bucci164, M. Cremonesi164, A. Das164, R. Goldouzian164, M. Hildreth164, K. Hurtado Anampa164, C. Jessop164, K. Lannon164, J. Lawrence164, N. Loukas164, L. Lutton164, J. Mariano164, N. Marinelli164, I. Mcalister164, T. McCauley164, C. Mcgrady164, K. Mohrman164, C. Moore164, Y. Musienko164,n, R. Ruchti164, A. Townsend164, M. Wayne164, H. Yockey164, M. Zarucki164, L. Zygala164, B. Bylsma165, M. Carrigan165, L. S. Durkin165, B. Francis165, C. Hill165, A. Lesauvage165, M. Nunez Ornelas165, K. Wei165, B. L. Winer165, B. R. Yates165, F. M. Addesa166, P. Das166, G. Dezoort166, P. Elmer166, A. Frankenthal166, B. Greenberg166, N. Haubrich166, S. Higginbotham166, A. Kalogeropoulos166, G. Kopp166, S. Kwan166, D. Lange166, D. Marlow166, K. Mei166, I. Ojalvo166, J. Olsen166, D. Stickland166, C. Tully166, S. Malik167, S. Norberg167, A. S. Bakshi168, V. E. Barnes168, R. Chawla168, S. Das168, L. Gutay168, M. Jones168, A. W. Jung168, D. Kondratyev168, A. M. Koshy168, M. Liu168, G. Negro168, N. Neumeister168, G. Paspalaki168, S. Piperov168, A. Purohit168, J. F. Schulte168, M. Stojanovic168, J. Thieman168, F. Wang168, R. Xiao168, W. Xie168, J. Dolen169, N. Parashar169, D. Acosta170, A. Baty170, T. Carnahan170, M. Decaro170, S. Dildick170, K. M. Ecklund170, P. J. Fernández Manteca170, S. Freed170, P. Gardner170, F. J. M. Geurts170, A. Kumar170, W. Li170, B. P. Padley170, R. Redjimi170, J. Rotter170, W. Shi170, S. Yang170, E. Yigitbasi170, L. Zhang170,mmmm, Y. Zhang170, A. Bodek171, P. de Barbaro171, R. Demina171, J. L. Dulemba171, C. Fallon171, T. Ferbel171, M. Galanti171, A. Garcia-Bellido171, O. Hindrichs171, A. Khukhunaishvili171, E. Ranken171, R. Taus171, G. P. Van Onsem171, K. Goulianos172, B. Chiarito173, J. P. Chou173, Y. Gershtein173, E. Halkiadakis173, A. Hart173, M. Heindl173, D. Jaroslawski173, O. Karacheban173,x, I. Laflotte173, A. Lath173, R. Montalvo173, K. Nash173, M. Osherson173, S. Salur173, S. Schnetzer173, S. Somalwar173, R. Stone173, S. A. Thayil173, S. Thomas173, H. Wang173, H. Acharya174, A. G. Delannoy174, S. Fiorendi174, T. Holmes174, E. Nibigira174, S. Spanier174, O. Bouhali175,nnnn, M. Dalchenko175, A. Delgado175, R. Eusebi175, J. Gilmore175, T. Huang175, T. Kamon175,oooo, H. Kim175, S. Luo175, S. Malhotra175, R. Mueller175, D. Overton175, D. Rathjens175, A. Safonov175, N. Akchurin176, J. Damgov176, V. Hegde176, K. Lamichhane176, S. W. Lee176, T. Mengke176, S. Muthumuni176, T. Peltola176, I. Volobouev176, Z. Wang176, A. Whitbeck176, E. Appelt177, S. Greene177, A. Gurrola177, W. Johns177, A. Melo177, F. Romeo177, P. Sheldon177, S. Tuo177, J. Velkovska177, J. Viinikainen177, B. Cardwell178, B. Cox178, G. Cummings178, J. Hakala178, R. Hirosky178, M. Joyce178, A. Ledovskoy178, A. Li178, C. Neu178, C. E. Perez Lara178, B. Tannenwald178, P. E. Karchin179, N. Poudyal179, S. Banerjee180, K. Black180, T. Bose180, S. Dasu180, I. De Bruyn180, P. Everaerts180, C. Galloni180, H. He180, M. Herndon180, A. Herve180, C. K. Koraka180, A. Lanaro180, A. Loeliger180, R. Loveless180, J. Madhusudanan Sreekala180, A. Mallampalli180, A. Mohammadi180, S. Mondal180, G. Parida180, D. Pinna180, A. Savin180, V. Shang180, V. Sharma180, W. H. Smith180, D. Teague180, H. F. Tsoi180, W. Vetens180, S. Afanasiev181, V. Andreev181, Yu. Andreev181, T. Aushev181, M. Azarkin181, A. Babaev181, A. Belyaev181, V. Blinov181,n, E. Boos181, V. Borshch181, D. Budkouski181, V. Bunichev181, O. Bychkova181, V. Chekhovsky181, R. Chistov181,n, M. Danilov181,n, A. Dermenev181, T. Dimova181,n, I. Dremin181, M. Dubinin181,gggg, L. Dudko181, V. Epshteyn181, A. Ershov181, G. Gavrilov181, V. Gavrilov181, S. Gninenko181, V. Golovtcov181, N. Golubev181, I. Golutvin181, I. Gorbunov181, V. Ivanchenko181, Y. Ivanov181, V. Kachanov181, L. Kardapoltsev181,n, V. Karjavine181, A. Karneyeu181, V. Kim181,n, M. Kirakosyan181, D. Kirpichnikov181, M. Kirsanov181, V. Klyukhin181, D. Konstantinov181, V. Korenkov181, A. Kozyrev181,n, N. Krasnikov181, E. Kuznetsova181,pppp, A. Lanev181, P. Levchenko181, A. Litomin181, N. Lychkovskaya181, V. Makarenko181, A. Malakhov181, V. Matveev181,n, V. Murzin181, A. Nikitenko181,qqqq, S. Obraztsov181, A. Oskin181, I. Ovtin181,n, V. Palichik181, V. Perelygin181, M. Perfilov181, S. Petrushanko181, G. Pivovarov181, S. Polikarpov181,n, V. Popov181, O. Radchenko181,n, M. Savina181, V. Savrin181, D. Selivanova181, V. Shalaev181, S. Shmatov181, S. Shulha181, Y. Skovpen181,n, S. Slabospitskii181, V. Smirnov181, D. Sosnov181, A. Stepennov181, V. Sulimov181, E. Tcherniaev181, A. Terkulov181, O. Teryaev181, I. Tlisova181, M. Toms181, A. Toropin181, L. Uvarov181, A. Uzunian181, E. Vlasov181, P. Volkov181, A. Vorobyev181, N. Voytishin181, B. S. Yuldashev181,rrrr, A. Zarubin181, I. Zhizhin181, and A. Zhokin181 (CMS Collaboration)

  • 1Yerevan Physics Institute, Yerevan, Armenia
  • 2Institut für Hochenergiephysik, Vienna, Austria
  • 3Universiteit Antwerpen, Antwerpen, Belgium
  • 4Vrije Universiteit Brussel, Brussel, Belgium
  • 5Université Libre de Bruxelles, Bruxelles, Belgium
  • 6Ghent University, Ghent, Belgium
  • 7Université Catholique de Louvain, Louvain-la-Neuve, Belgium
  • 8Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
  • 9Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
  • 10Universidade Estadual Paulista, Universidade Federal do ABC, São Paulo, Brazil
  • 11Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria
  • 12University of Sofia, Sofia, Bulgaria
  • 13Instituto De Alta Investigación, Universidad de Tarapacá, Casilla 7 D, Arica, Chile
  • 14Beihang University, Beijing, China
  • 15Department of Physics, Tsinghua University, Beijing, China
  • 16Institute of High Energy Physics, Beijing, China
  • 17State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
  • 18Sun Yat-Sen University, Guangzhou, China
  • 19Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University, Shanghai, China
  • 20Zhejiang University, Hangzhou, Zhejiang, China
  • 21Universidad de Los Andes, Bogota, Colombia
  • 22Universidad de Antioquia, Medellin, Colombia
  • 23University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, Croatia
  • 24University of Split, Faculty of Science, Split, Croatia
  • 25Institute Rudjer Boskovic, Zagreb, Croatia
  • 26University of Cyprus, Nicosia, Cyprus
  • 27Charles University, Prague, Czech Republic
  • 28Escuela Politecnica Nacional, Quito, Ecuador
  • 29Universidad San Francisco de Quito, Quito, Ecuador
  • 30Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt
  • 31Center for High Energy Physics (CHEP-FU), Fayoum University, El-Fayoum, Egypt
  • 32National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
  • 33Department of Physics, University of Helsinki, Helsinki, Finland
  • 34Helsinki Institute of Physics, Helsinki, Finland
  • 35Lappeenranta-Lahti University of Technology, Lappeenranta, Finland
  • 36IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France
  • 37Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
  • 38Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France
  • 39Institut de Physique des 2 Infinis de Lyon (IP2I), Villeurbanne, France
  • 40Georgian Technical University, Tbilisi, Georgia
  • 41RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany
  • 42RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
  • 43RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany
  • 44Deutsches Elektronen-Synchrotron, Hamburg, Germany
  • 45University of Hamburg, Hamburg, Germany
  • 46Karlsruher Institut fuer Technologie, Karlsruhe, Germany
  • 47Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece
  • 48National and Kapodistrian University of Athens, Athens, Greece
  • 49National Technical University of Athens, Athens, Greece
  • 50University of Ioánnina, Ioánnina, Greece
  • 51MTA-ELTE Lendület CMS Particle and Nuclear Physics Group, Eötvös Loránd University, Budapest, Hungary
  • 52Wigner Research Centre for Physics, Budapest, Hungary
  • 53Institute of Nuclear Research ATOMKI, Debrecen, Hungary
  • 54Institute of Physics, University of Debrecen, Debrecen, Hungary
  • 55Karoly Robert Campus, MATE Institute of Technology, Gyongyos, Hungary
  • 56Panjab University, Chandigarh, India
  • 57University of Delhi, Delhi, India
  • 58Saha Institute of Nuclear Physics, HBNI, Kolkata, India
  • 59Indian Institute of Technology Madras, Madras, India
  • 60Bhabha Atomic Research Centre, Mumbai, India
  • 61Tata Institute of Fundamental Research-A, Mumbai, India
  • 62Tata Institute of Fundamental Research-B, Mumbai, India
  • 63National Institute of Science Education and Research, An OCC of Homi Bhabha National Institute, Bhubaneswar, Odisha, India
  • 64Indian Institute of Science Education and Research (IISER), Pune, India
  • 65Isfahan University of Technology, Isfahan, Iran
  • 66Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
  • 67University College Dublin, Dublin, Ireland
  • 68aINFN Sezione di Bari, Bari, Italy
  • 68bUniversità di Bari, Bari, Italy
  • 68cPolitecnico di Bari, Bari, Italy
  • 69aINFN Sezione di Bologna, Bologna, Italy
  • 69bUniversità di Bologna, Bologna, Italy
  • 70aINFN Sezione di Catania, Catania, Italy
  • 70bUniversità di Catania, Catania, Italy
  • 71aINFN Sezione di Firenze, Firenze, Italy
  • 71bUniversità di Firenze, Firenze, Italy
  • 72INFN Laboratori Nazionali di Frascati, Frascati, Italy
  • 73aINFN Sezione di Genova, Genova, Italy
  • 73bUniversità di Genova, Genova, Italy
  • 74aINFN Sezione di Milano-Bicocca, Milano, Italy
  • 74bUniversità di Milano-Bicocca, Milano, Italy
  • 75aINFN Sezione di Napoli, Napoli, Italy
  • 75bUniversità di Napoli ‘Federico II’, Napoli, Italy
  • 75cUniversità della Basilicata, Potenza, Italy
  • 75dUniversità G. Marconi, Roma, Italy
  • 76aINFN Sezione di Padova, Padova, Italy
  • 76bUniversità di Padova, Padova, Italy
  • 76cUniversità di Trento, Trento, Italy
  • 77aINFN Sezione di Pavia, Pavia, Italy
  • 77bUniversità di Pavia, Pavia, Italy
  • 78aINFN Sezione di Perugia, Perugia, Italy
  • 78bUniversità di Perugia, Perugia, Italy
  • 79aINFN Sezione di Pisa, Pisa, Italy
  • 79bUniversità di Pisa, Pisa, Italy
  • 79cScuola Normale Superiore di Pisa, Pisa, Italy
  • 79dUniversità di Siena, Siena, Italy
  • 80aINFN Sezione di Roma, Roma, Italy
  • 80bSapienza Università di Roma, Roma, Italy
  • 81aINFN Sezione di Torino, Torino, Italy
  • 81bUniversità di Torino, Torino, Italy
  • 81cUniversità del Piemonte Orientale, Novara, Italy
  • 82aINFN Sezione di Trieste, Trieste, Italy
  • 82bUniversità di Trieste, Trieste, Italy
  • 83Kyungpook National University, Daegu, Korea
  • 84Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea
  • 85Hanyang University, Seoul, Korea
  • 86Korea University, Seoul, Korea
  • 87Kyung Hee University, Department of Physics, Seoul, Korea
  • 88Sejong University, Seoul, Korea
  • 89Seoul National University, Seoul, Korea
  • 90University of Seoul, Seoul, Korea
  • 91Yonsei University, Department of Physics, Seoul, Korea
  • 92Sungkyunkwan University, Suwon, Korea
  • 93College of Engineering and Technology, American University of the Middle East (AUM), Dasman, Kuwait
  • 94Riga Technical University, Riga, Latvia
  • 95Vilnius University, Vilnius, Lithuania
  • 96National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia
  • 97Universidad de Sonora (UNISON), Hermosillo, Mexico
  • 98Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
  • 99Universidad Iberoamericana, Mexico City, Mexico
  • 100Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
  • 101University of Montenegro, Podgorica, Montenegro
  • 102National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
  • 103AGH University of Science and Technology Faculty of Computer Science, Electronics and Telecommunications, Krakow, Poland
  • 104National Centre for Nuclear Research, Swierk, Poland
  • 105Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
  • 106Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal
  • 107VINCA Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
  • 108Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
  • 109Universidad Autónoma de Madrid, Madrid, Spain
  • 110Universidad de Oviedo, Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA), Oviedo, Spain
  • 111Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
  • 112University of Colombo, Colombo, Sri Lanka
  • 113University of Ruhuna, Department of Physics, Matara, Sri Lanka
  • 114CERN, European Organization for Nuclear Research, Geneva, Switzerland
  • 115Paul Scherrer Institut, Villigen, Switzerland
  • 116ETH Zurich—Institute for Particle Physics and Astrophysics (IPA), Zurich, Switzerland
  • 117Universität Zürich, Zurich, Switzerland
  • 118National Central University, Chung-Li, Taiwan
  • 119National Taiwan University (NTU), Taipei, Taiwan
  • 120Chulalongkorn University, Faculty of Science, Department of Physics, Bangkok, Thailand
  • 121Çukurova University, Physics Department, Science and Art Faculty, Adana, Turkey
  • 122Middle East Technical University, Physics Department, Ankara, Turkey
  • 123Bogazici University, Istanbul, Turkey
  • 124Istanbul Technical University, Istanbul, Turkey
  • 125Istanbul University, Istanbul, Turkey
  • 126Institute for Scintillation Materials of National Academy of Science of Ukraine, Kharkiv, Ukraine
  • 127National Science Centre, Kharkiv Institute of Physics and Technology, Kharkiv, Ukraine
  • 128University of Bristol, Bristol, United Kingdom
  • 129Rutherford Appleton Laboratory, Didcot, United Kingdom
  • 130Imperial College, London, United Kingdom
  • 131Brunel University, Uxbridge, United Kingdom
  • 132Baylor University, Waco, Texas, USA
  • 133Catholic University of America, Washington, DC, USA
  • 134The University of Alabama, Tuscaloosa, Alabama, USA
  • 135Boston University, Boston, Massachusetts, USA
  • 136Brown University, Providence, Rhode Island, USA
  • 137University of California, Davis, Davis, California, USA
  • 138University of California, Los Angeles, California, USA
  • 139University of California, Riverside, Riverside, California, USA
  • 140University of California, San Diego, La Jolla, California, USA
  • 141University of California, Santa Barbara—Department of Physics, Santa Barbara, California, USA
  • 142California Institute of Technology, Pasadena, California, USA
  • 143Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
  • 144University of Colorado Boulder, Boulder, Colorado, USA
  • 145Cornell University, Ithaca, New York, USA
  • 146Fermi National Accelerator Laboratory, Batavia, Illinois, USA
  • 147University of Florida, Gainesville, Florida, USA
  • 148Florida State University, Tallahassee, Florida, USA
  • 149Florida Institute of Technology, Melbourne, Florida, USA
  • 150University of Illinois at Chicago (UIC), Chicago, Illinois, USA
  • 151The University of Iowa, Iowa City, Iowa, USA
  • 152Johns Hopkins University, Baltimore, Maryland, USA
  • 153The University of Kansas, Lawrence, Kansas, USA
  • 154Kansas State University, Manhattan, Kansas, USA
  • 155Lawrence Livermore National Laboratory, Livermore, California, USA
  • 156University of Maryland, College Park, Maryland, USA
  • 157Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
  • 158University of Minnesota, Minneapolis, Minnesota, USA
  • 159University of Mississippi, Oxford, Mississippi, USA
  • 160University of Nebraska-Lincoln, Lincoln, Nebraska, USA
  • 161State University of New York at Buffalo, Buffalo, New York, USA
  • 162Northeastern University, Boston, Massachusetts, USA
  • 163Northwestern University, Evanston, Illinois, USA
  • 164University of Notre Dame, Notre Dame, Indiana, USA
  • 165The Ohio State University, Columbus, Ohio, USA
  • 166Princeton University, Princeton, New Jersey, USA
  • 167University of Puerto Rico, Mayaguez, Puerto Rico, USA
  • 168Purdue University, West Lafayette, Indiana, USA
  • 169Purdue University Northwest, Hammond, Indiana, USA
  • 170Rice University, Houston, Texas, USA
  • 171University of Rochester, Rochester, New York, USA
  • 172The Rockefeller University, New York, New York, USA
  • 173Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
  • 174University of Tennessee, Knoxville, Tennessee, USA
  • 175Texas A&M University, College Station, Texas, USA
  • 176Texas Tech University, Lubbock, Texas, USA
  • 177Vanderbilt University, Nashville, Tennessee, USA
  • 178University of Virginia, Charlottesville, Virginia, USA
  • 179Wayne State University, Detroit, Michigan, USA
  • 180University of Wisconsin—Madison, Madison, Wisconsin, USA
  • 181Authors affiliated with an institute or an international laboratory covered by a cooperation agreement with CERN

  • *Full author list given at the end of the article.
  • aDeceased.
  • bAlso at Yerevan State University, Yerevan, Armenia.
  • cAlso at TU Wien, Vienna, Austria.
  • dAlso at Institute of Basic and Applied Sciences, Faculty of Engineering, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt.
  • eAlso at Université Libre de Bruxelles, Bruxelles, Belgium.
  • fAlso at Universidade Estadual de Campinas, Campinas, Brazil.
  • gAlso at Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
  • hAlso at UFMS, Nova Andradina, Brazil.
  • iAlso at The University of the State of Amazonas, Manaus, Brazil.
  • jAlso at University of Chinese Academy of Sciences, Beijing, China.
  • kAlso at Nanjing Normal University Department of Physics, Nanjing, China.
  • lAlso at The University of Iowa, Iowa City, Iowa, USA.
  • mAlso at University of Chinese Academy of Sciences, Beijing, China.
  • nAlso at Another institute or international laboratory covered by a cooperation agreement with CERN.
  • oAlso at British University in Egypt, Cairo, Egypt.
  • pAlso at Cairo University, Cairo, Egypt.
  • qAlso at Purdue University, West Lafayette, Indiana, USA.
  • rAlso at Université de Haute Alsace, Mulhouse, France.
  • sAlso at Department of Physics, Tsinghua University, Beijing, China.
  • tAlso at Erzincan Binali Yildirim University, Erzincan, Turkey.
  • uAlso at University of Hamburg, Hamburg, Germany.
  • vAlso at RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany.
  • wAlso at Isfahan University of Technology, Isfahan, Iran.
  • xAlso at Brandenburg University of Technology, Cottbus, Germany.
  • yAlso at Forschungszentrum Jülich, Juelich, Germany.
  • zAlso at CERN, European Organization for Nuclear Research, Geneva, Switzerland.
  • aaAlso at Physics Department, Faculty of Science, Assiut University, Assiut, Egypt.
  • bbAlso at Karoly Robert Campus, MATE Institute of Technology, Gyongyos, Hungary.
  • ccAlso at Wigner Research Centre for Physics, Budapest, Hungary.
  • ddAlso at Institute of Physics, University of Debrecen, Debrecen, Hungary.
  • eeAlso at Institute of Nuclear Research ATOMKI, Debrecen, Hungary.
  • ffAlso at Universitatea Babes-Bolyai—Facultatea de Fizica, Cluj-Napoca, Romania.
  • ggAlso at Faculty of Informatics, University of Debrecen, Debrecen, Hungary.
  • hhAlso at Punjab Agricultural University, Ludhiana, India.
  • iiAlso at UPES—University of Petroleum and Energy Studies, Dehradun, India.
  • jjAlso at University of Visva-Bharati, Santiniketan, India.
  • kkAlso at University of Hyderabad, Hyderabad, India.
  • llAlso at Indian Institute of Science (IISc), Bangalore, India.
  • mmAlso at Indian Institute of Technology (IIT), Mumbai, India.
  • nnAlso at IIT Bhubaneswar, Bhubaneswar, India.
  • ooAlso at Institute of Physics, Bhubaneswar, India.
  • ppAlso at Deutsches Elektronen-Synchrotron, Hamburg, Germany.
  • qqAlso at Department of Physics, Isfahan University of Technology, Isfahan, Iran.
  • rrAlso at Sharif University of Technology, Tehran, Iran.
  • ssAlso at Department of Physics, University of Science and Technology of Mazandaran, Behshahr, Iran.
  • ttAlso at Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Bologna, Italy.
  • uuAlso at Centro Siciliano di Fisica Nucleare e di Struttura Della Materia, Catania, Italy.
  • vvAlso at Scuola Superiore Meridionale, Università di Napoli “Federico II,” Napoli, Italy.
  • wwAlso at Fermi National Accelerator Laboratory, Batavia, Illinois, USA.
  • xxAlso at Università di Napoli ’Federico II’, Napoli, Italy.
  • yyAlso at Laboratori Nazionali di Legnaro dell’INFN, Legnaro, Italy.
  • zzAlso at Ain Shams University, Cairo, Egypt.
  • aaaAlso at Consiglio Nazionale delle Ricerche—Istituto Officina dei Materiali, Perugia, Italy.
  • bbbAlso at Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia.
  • cccAlso at Consejo Nacional de Ciencia y Tecnología, Mexico City, Mexico.
  • dddAlso at IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France.
  • eeeAlso at Faculty of Physics, University of Belgrade, Belgrade, Serbia.
  • fffAlso at Trincomalee Campus, Eastern University, Sri Lanka, Nilaveli, Sri Lanka.
  • gggAlso at INFN Sezione di Pavia, Università di Pavia, Pavia, Italy.
  • hhhAlso at National and Kapodistrian University of Athens, Athens, Greece.
  • iiiAlso at Ecole Polytechnique Fédérale Lausanne, Lausanne, Switzerland.
  • jjjAlso at Universität Zürich, Zurich, Switzerland.
  • kkkAlso at Stefan Meyer Institute for Subatomic Physics, Vienna, Austria.
  • lllAlso at Laboratoire d’Annecy-le-Vieux de Physique des Particules, IN2P3-CNRS, Annecy-le-Vieux, France.
  • mmmAlso at Near East University, Research Center of Experimental Health Science, Mersin, Turkey.
  • nnnAlso at Konya Technical University, Konya, Turkey.
  • oooAlso at Izmir Bakircay University, Izmir, Turkey.
  • pppAlso at Adiyaman University, Adiyaman, Turkey.
  • qqqAlso at Istanbul Gedik University, Istanbul, Turkey.
  • rrrAlso at Necmettin Erbakan University, Konya, Turkey.
  • sssAlso at Bozok Universitetesi Rektörlügü, Yozgat, Turkey.
  • tttAlso at Marmara University, Istanbul, Turkey.
  • uuuAlso at Milli Savunma University, Istanbul, Turkey.
  • vvvAlso at Kafkas University, Kars, Turkey.
  • wwwAlso at Istanbul University—Cerrahpasa, Faculty of Engineering, Istanbul, Turkey.
  • xxxAlso at Yildiz Technical University, Istanbul, Turkey.
  • yyyAlso at Vrije Universiteit Brussel, Brussel, Belgium.
  • zzzAlso at School of Physics and Astronomy, University of Southampton, Southampton, United Kingdom.
  • aaaaAlso at University of Bristol, Bristol, United Kingdom.
  • bbbbAlso at IPPP Durham University, Durham, United Kingdom.
  • ccccAlso at Monash University, Faculty of Science, Clayton, Australia.
  • ddddAlso at Università di Torino, Torino, Italy.
  • eeeeAlso at Bethel University, St. Paul, Minnesota, USA.
  • ffffAlso at Karamanoğlu Mehmetbey University, Karaman, Turkey.
  • ggggAlso at California Institute of Technology, Pasadena, California, USA.
  • hhhhAlso at United States Naval Academy, Annapolis, Maryland, USA.
  • iiiiAlso at Bingol University, Bingol, Turkey.
  • jjjjAlso at Georgian Technical University, Tbilisi, Georgia.
  • kkkkAlso at Sinop University, Sinop, Turkey.
  • llllAlso at Erciyes University, Kayseri, Turkey.
  • mmmmAlso at Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University, Shanghai, China.
  • nnnnAlso at Texas A&M University at Qatar, Doha, Qatar.
  • ooooAlso at Kyungpook National University, Daegu, Korea.
  • ppppAlso at University of Florida, Gainesville, Florida, USA.
  • qqqqAlso at Imperial College, London, United Kingdom.
  • rrrrAlso at Institute of Nuclear Physics of the Uzbekistan Academy of Sciences, Tashkent, Uzbekistan.

Phys. Rev. D 108, 032008 – Published 10 August, 2023

DOI: https://doi.org/10.1103/PhysRevD.108.032008

Abstract

A data sample containing top quark pairs (tt¯) produced in association with a Lorentz-boosted Z or Higgs boson is used to search for signs of new physics using effective field theory. The data correspond to an integrated luminosity of 138fb1 of proton-proton collisions produced at a center-of-mass energy of 13 TeV at the LHC and collected by the CMS experiment. Selected events contain a single lepton and hadronic jets, including two identified with the decay of bottom quarks, plus an additional large-radius jet with high transverse momentum identified as a Z or Higgs boson decaying to a bottom quark pair. Machine learning techniques are employed to discriminate between tt¯Z or tt¯H events and events from background processes, which are dominated by tt¯+jets production. No indications of new physics are observed. The signal strengths of boosted tt¯Z and tt¯H production are measured, and upper limits are placed on the tt¯Z and tt¯H differential cross sections as functions of the Z or Higgs boson transverse momentum. The effects of new physics are probed using a framework in which the standard model is considered to be the low-energy effective field theory of a higher energy scale theory. Eight possible dimension-six operators are added to the standard model Lagrangian, and their corresponding coefficients are constrained via fits to the data.

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