Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions

. 2021 ; 81 (9) : 852. [epub] 20210927

Status PubMed-not-MEDLINE Jazyk angličtina Země Francie Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid34727147

Collinear (small-angle) and large-angle, as well as soft and hard radiations are investigated in three-jet and Z + two-jet events collected in proton-proton collisions at the LHC. The normalized production cross sections are measured as a function of the ratio of transverse momenta of two jets and their angular separation. The measurements in the three-jet and Z + two-jet events are based on data collected at a center-of-mass energy of 8 TeV , corresponding to an integrated luminosity of 19.8 fb - 1 . The Z + two-jet events are reconstructed in the dimuon decay channel of the Z boson. The three-jet measurement is extended to include s = 13 TeV data corresponding to an integrated luminosity of 2.3 fb - 1 . The results are compared to predictions from event generators that include parton showers, multiple parton interactions, and hadronization. The collinear and soft regions are in general well described by parton showers, whereas the regions of large angular separation are often best described by calculations using higher-order matrix elements.

3 Physikalisches Institut A RWTH Aachen University Aachen Germany

3 Physikalisches Institut B RWTH Aachen University Aachen Germany

Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt

Adiyaman University Adiyaman Turkey

AGH University of Science and Technology Faculty of Computer Science Electronics and Telecommunications Kraków Poland

Ain Shams University Cairo Egypt

Application and Research Center for Advanced Studies Istanbul Aydin University Istanbul Turkey

Baylor University Waco USA

Beihang University Beijing China

Benemerita Universidad Autonoma de Puebla Puebla Mexico

Bethel University St Paul Minneapolis USA

Beykent University Istanbul Turkey

Bhabha Atomic Research Centre Mumbai India

Bingol University Bingol Turkey

Bogazici University Istanbul Turkey

Boston University Boston USA

Bozok Universitetesi Rektörlügü Yozgat Turkey

Brandenburg University of Technology Cottbus Germany

British University in Egypt Cairo Egypt

Brown University Providence USA

Brunel University Uxbridge UK

Budker Institute of Nuclear Physics Novosibirsk Russia

Cairo University Cairo Egypt

California Institute of Technology Pasadena USA

Carnegie Mellon University Pittsburgh USA

Catholic University of America Washington DC USA

Center for High Energy Physics Fayoum University El Fayoum Egypt

Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil

Centro de Investigacion y de Estudios Avanzados del IPN Mexico City Mexico

Centro de Investigaciones Energéticas Medioambientales y Tecnológicas Madrid Spain

Centro Siciliano di Fisica Nucleare e di Struttura Della Materia Catania Italy

CERN European Organization for Nuclear Research Geneva Switzerland

Charles University Prague Czech Republic

Chonnam National University Institute for Universe and Elementary Particles Kwangju Korea

Consejo Nacional de Ciencia y Tecnología Mexico City Mexico

Cornell University Ithaca USA

Department of Physics Faculty of Science Chulalongkorn University Bangkok Thailand

Department of Physics Isfahan University of Technology Isfahan Iran

Department of Physics Nanjing Normal University Nanjing China

Department of Physics Tsinghua University Beijing China

Department of Physics University of California Santa Barbara Santa Barbara USA

Department of Physics University of Helsinki Helsinki Finland

Department of Physics University of Ruhuna Matara Sri Lanka

Department of Physics University of Science and Technology of Mazandaran Behshahr Iran

Department of Physics Yonsei University Seoul Korea

Deutsches Elektronen Synchrotron Hamburg Germany

Erzincan Binali Yildirim University Erzincan Turkey

Escuela Politecnica Nacional Quito Ecuador

Eszterhazy Karoly University Karoly Robert Campus Gyongyos Hungary

ETH Zurich Institute for Particle Physics and Astrophysics Zurich Switzerland

Faculty of Physics University of Belgrade Belgrade Serbia

Fayoum University El Fayoum Egypt

Federal University of Rio Grande do Sul Porto Alegre Brazil

Fermi National Accelerator Laboratory Batavia USA

Florida Institute of Technology Melbourne USA

Florida State University Tallahassee USA

G H G Khalsa College Punjab India

Georgian Technical University Tbilisi Georgia

Ghent University Ghent Belgium

Hacettepe University Ankara Turkey

Hanyang University Seoul Korea

Helsinki Institute of Physics Helsinki Finland

Helwan University Cairo Egypt

IIT Bhubaneswar Bhubaneswar India

Imperial College London UK

Indian Institute of Science Bangalore India

Indian Institute of Science Education and Research Pune India

Indian Institute of Technology Madras Madras India

Indian Institute of Technology Mumbai India

INFN Laboratori Nazionali di Frascati Frascati Italy

INFN Sezione di Bari Universit'a di Bari Politecnico di Bari Bari Italy

INFN Sezione di Bari Università di Bari Politecnico di Bari Bari Italy

INFN Sezione di Bologna Università di Bologna Bologna Italy

INFN Sezione di Catania Università di Catania Catania Italy

INFN Sezione di Firenze Università di Firenze Firenze Italy

INFN Sezione di Genova Università di Genova Genoa Italy

INFN Sezione di Milano Bicocca Università di Milano Bicocca Milan Italy

INFN Sezione di Napoli Università di Napoli 'Federico II' Napoli Italy Università della Basilicata Potenza Italy Università G Marconi Rome Italy

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INFN Sezione di Pisa Università di Pisa Scuola Normale Superiore di Pisa Pisa Italy Università di Siena Siena Italy

INFN Sezione di Roma Sapienza Università di Roma Rome Italy

INFN Sezione di Torino Università di Torino Torino Torino Italy Università del Piemonte Orientale Novara Italy

INFN Sezione di Trieste Università di Trieste Trieste Italy

Institut de Physique des 2 Infinis de Lyon Villeurbanne France

Institut für Hochenergiephysik Wien Austria

Institute for High Energy Physics of National Research Centre 'Kurchatov Institute' Protvino Russia

Institute for Nuclear Problems Minsk Belarus

Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria

Institute for Nuclear Research Moscow Russia

Institute for Research in Fundamental Sciences Tehran Iran

Institute for Scintillation Materials of National Academy of Science of Ukraine Kharkov Ukraine

Institute for Theoretical and Experimental Physics named by A 1 Alikhanov of NRC 'Kurchatov Institute' Moscow Russia

Institute of Basic and Applied Sciences Faculty of Engineering Arab Academy for Science Technology and Maritime Transport Alexandria Egypt

Institute of Experimental Physics Faculty of Physics University of Warsaw Warsaw Poland

Institute of High Energy Physics Beijing China

Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion beam Application Fudan University Shanghai China

Institute of Nuclear and Particle Physics NCSR Demokritos Aghia Paraskevi Athens Greece

Institute of Nuclear Research ATOMKI Debrecen Hungary

Institute of Physics Bhubaneswar India

Institute of Physics University of Debrecen Debrecen Hungary

Institute Rudjer Boskovic Zagreb Croatia

Instituto de Física de Cantabria CSIC Universidad de Cantabria Santander Spain

IPPP Durham University Durham UK

IRFU CEA Université Paris Saclay Gif sur Yvette France

Istanbul Bilgi University Istanbul Turkey

Istanbul Technical University Istanbul Turkey

Istanbul University Istanbul Turkey

Italian National Agency for New Technologies Energy and Sustainable Economic Development Bologna Italy

Izmir Institute of Technology Izmir Turkey

Johns Hopkins University Baltimore USA

Joint Institute for Nuclear Research Dubna Russia

Kafkas University Kars Turkey

Kansas State University Manhattan USA

Karamanoğlu Mehmetbey University Karaman Turkey

Karlsruher Institut fuer Technologie Karlsruhe Germany

Korea University Seoul Korea

Kyung Hee University Department of Physics Seoul Republic of Korea

Kyungpook National University Daegu Korea

Laboratoire d'Annecy le Vieux de Physique des Particules IN2P3 CNRS Annecy le Vieux France

Laboratoire Leprince Ringuet CNRS IN2P3 Ecole Polytechnique Institut Polytechnique de Paris Palaiseau France

Laboratório de Instrumentação e Física Experimental de Partículas Lisbon Portugal

Lappeenranta University of Technology Lappeenranta Finland

Lawrence Livermore National Laboratory Livermore USA

Marmara University Istanbul Turkey

Massachusetts Institute of Technology Cambridge USA

Mersin University Mersin Turkey

Milli Savunma University Istanbul Turkey

Mimar Sinan University Istanbul Turkey

Monash University Faculty of Science Clayton Australia

Moscow Institute of Physics and Technology Moscow Russia

MTA ELTE Lendület CMS Particle and Nuclear Physics Group Eötvös Loránd University Budapest Hungary

National and Kapodistrian University of Athens Athens Greece

National Central University Chung Li Taiwan

National Centre for Nuclear Research Swierk Poland

National Centre for Particle Physics Universiti Malaya Kuala Lumpur Malaysia

National Centre for Physics Quaid 1 Azam University Islamabad Pakistan

National Institute of Chemical Physics and Biophysics Tallinn Estonia

National Institute of Science Education and Research HBNI Bhubaneswar India

National Research Nuclear University 'Moscow Engineering Physics Institute' Moscow Russia

National Research Tomsk Polytechnic University Tomsk Russia

National Scientific Center Kharkov Institute of Physics and Technology Kharkov Ukraine

National Taiwan University Taipei Taiwan

National Technical University of Athens Athens Greece

Near East University Research Center of Experimental Health Science Nicosia Turkey

Necmettin Erbakan University Konya Turkey

Northeastern University Boston USA

Northwestern University Evanston USA

Novosibirsk State University Novosibirsk Russia

Ozyegin University Istanbul Turkey

P N Lebedev Physical Institute Moscow Russia

Panjab University Chandigarh India

Paul Scherrer Institut Villigen Switzerland

Petersburg Nuclear Physics Institute Gatchina Russia

Physics Department Faculty of Science Assiut University Assiut Egypt

Physics Department Middle East Technical University Ankara Turkey

Physics Department Science and Art Faculty Çukurova University Adana Turkey

Piri Reis University Istanbul Turkey

Princeton University Princeton USA

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Rutherford Appleton Laboratory Didcot UK

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Saha Institute of Nuclear Physics HBNI Kolkata India

School of Physics and Astronomy University of Southampton Southampton UK

Sejong University Seoul Korea

Seoul National University Seoul Korea

Sharif University of Technology Tehran Iran

Shoolini University Solan India

Sinop University Sinop Turkey

Şırnak University Sirnak Turkey

Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University Moscow Russia

St Petersburg State Polytechnical University St Petersburg Russia

State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China

State University of New York at Buffalo Buffalo USA

Stefan Meyer Institute for Subatomic Physics Vienna Austria

Sun Yat Sen University Guangzhou China

Sungkyunkwan University Suwon Korea

Tata Institute of Fundamental Research A Mumbai India

Tata Institute of Fundamental Research B Mumbai India

Texas A and M University at Qatar Doha Qatar

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Tomsk State University Tomsk Russia

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Universidad Autónoma de Madrid Madrid Spain

Universidad Autónoma de San Luis Potosí San Luis Potosí Mexico

Universidad de Antioquia Medellin Colombia

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Universidad de Oviedo Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias Oviedo Spain

Universidad de Sonora Hermosillo Mexico

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