Measurements of the associated production of a Z boson and b jets in pp collisions at s = 8 TeV

. 2017 ; 77 (11) : 751. [epub] 20171108

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

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid31999282

Measurements of the associated production of a Z boson with at least one jet originating from a b quark in proton-proton collisions at s = 8 TeV are presented. Differential cross sections are measured with data collected by the CMS experiment corresponding to an integrated luminosity of 19.8 fb - 1 . Z bosons are reconstructed through their decays to electrons and muons. Cross sections are measured as a function of observables characterizing the kinematics of the b jet and the Z boson. Ratios of differential cross sections for the associated production with at least one b jet to the associated production with any jet are also presented. The production of a Z boson with at least two b jets is investigated, and differential cross sections are measured for the dijet system. Results are compared to theoretical predictions, testing two different flavour schemes for the choice of initial-state partons.

1 Physikalisches Institut RWTH Aachen University Aachen Germany

3 Physikalisches Institut A RWTH Aachen University Aachen Germany

3 Physikalisches Institut B RWTH Aachen University Aachen Germany

Baylor University Waco USA

Beihang University Beijing China

Benemerita Universidad Autonoma de Puebla Puebla Mexico

Bhabha Atomic Research Centre Mumbai India

Bogazici University Istanbul Turkey

Boston University Boston USA

Brown University Providence USA

Brunel University Uxbridge UK

California Institute of Technology Pasadena USA

Carnegie Mellon University Pittsburgh USA

Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules CNRS IN2P3 Villeurbanne France

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

CERN European Organization for Nuclear Research Geneva Switzerland

Charles University Prague Czech Republic

Chonbuk National University Jeonju Korea

Cornell University Ithaca USA

Department of Physics Faculty of Science Chulalongkorn University Bangkok Thailand

Department of Physics University of California Santa Barbara Santa Barbara USA

Department of Physics University of Helsinki Helsinki Finland

Deutsches Elektronen Synchrotron Hamburg Germany

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

Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture University of Split Split Croatia

Faculty of Physics and Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia

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

Faculty of Science University of Split Split Croatia

Fermi National Accelerator Laboratory Batavia USA

Florida Institute of Technology Melbourne USA

Florida International University Miami USA

Florida State University Tallahassee USA

Georgian Technical University Tbilisi Georgia

Ghent University Ghent Belgium

Helsinki Institute of Physics Helsinki Finland

Imperial College London UK

Indian Institute of Science Education and Research Pune India

INFN Laboratori Nazionali di Frascati Frascati 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 Florence 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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Institut de Physique Nucléaire de Lyon Université de Lyon Université Claude Bernard Lyon 1 CNRS IN2P3 Villeurbanne France

Institut für Experimentelle Kernphysik Karlsruhe Germany

Institut für Hochenergiephysik Vienna Austria

Institut Pluridisciplinaire Hubert Curien Université de Strasbourg Université de Haute Alsace Mulhouse CNRS IN2P3 Strasbourg France

Institute for Nuclear Research and Nuclear Energy Sofia Bulgaria

Institute for Nuclear Research Moscow Russia

Institute for Particle Physics ETH Zurich Zurich Switzerland

Institute for Research in Fundamental Sciences Tehran Iran

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

Institute for Theoretical and Experimental Physics Moscow Russia

Institute for Universe and Elementary Particles Chonnam National University Kwangju Korea

Institute of High Energy Physics Beijing China

Institute of Nuclear and Particle Physics NCSR Demokritos Aghia Paraskevi Greece

Institute of Nuclear Research ATOMKI Debrecen Hungary

Institute of Physics University of Debrecen Debrecen Hungary

Institute Rudjer Boskovic Zagreb Croatia

Instituto de Física de Cantabria CSIC Universidad de Cantabria Santander Spain

IRFU CEA Université Paris Saclay Gif sur Yvette France

Istanbul Technical University Istanbul Turkey

Johns Hopkins University Baltimore USA

Joint Institute for Nuclear Research Dubna Russia

Kangwon National University Chunchon Korea

Kansas State University Manhattan USA

Korea University Seoul Korea

Kyungpook National University Daegu Korea

Laboratoire Leprince Ringuet Ecole Polytechnique IN2P3 CNRS Palaiseau France

Laboratório de Instrumentação e Física Experimental de Partículas Lisbon Portugal

Lappeenranta University of Technology Lappeenranta Finland

Lawrence Livermore National Laboratory Livermore USA

Massachusetts Institute of Technology Cambridge USA

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 and High Energy Physics Minsk Belarus

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 Bhubaneswar India

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

National Scientific Center Kharkov Institute of Physics and Technology Kharkov Ukraine

National Taiwan University Taipei Taiwan

Northeastern University Boston USA

Northwestern University Evanston USA

P N Lebedev Physical Institute Moscow Russia

Panjab University Chandigarh India

Paul Scherrer Institut Villigen Switzerland

Petersburg Nuclear Physics Institute Gatchina St Petersburg Russia

Physics Department Middle East Technical University Ankara Turkey

Physics Department Science and Art Faculty Cukurova University Adana Turkey

Princeton University Princeton USA

Purdue University Calumet Hammond USA

Purdue University West Lafayette USA

Rice University Houston USA

Rutgers The State University of New Jersey Piscataway USA

Rutherford Appleton Laboratory Didcot UK

Saha Institute of Nuclear Physics Kolkata India

Seoul National University Seoul Korea

Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University Moscow Russia

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

State Research Center of Russian Federation Institute for High Energy Physics Protvino Russia

State University of New York at Buffalo Buffalo USA

Sungkyunkwan University Suwon Korea

Tata Institute of Fundamental Research Mumbai India

Tbilisi State University Tbilisi Georgia

Texas A and M University College Station USA

Texas Tech University Lubbock USA

The Ohio State University Columbus USA

The University of Alabama Tuscaloosa USA

The University of Iowa Iowa City USA

The University of Kansas Lawrence USA

Universidad Autónoma de Madrid Madrid Spain

Universidad Autónoma de San Luis Potosí San Luis Potosí Mexico

Universidad de Los Andes Bogotá Colombia

Universidad de Oviedo Oviedo Spain

Universidad Iberoamericana Mexico City Mexico

Universidad San Francisco de Quito Quito Ecuador

Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil

Universidade Estadual Paulista Universidade Federal do ABC São Paulo Brazil

Universität Zürich Zurich Switzerland

Université Catholique de Louvain Louvain la Neuve Belgium

Université de Mons Mons Belgium

Université Libre de Bruxelles Brussels Belgium

Universiteit Antwerpen Antwerp Belgium

University College Dublin Dublin Ireland

University of Auckland Auckland New Zealand

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University of California Riverside Riverside USA

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University of Cyprus Nicosia Cyprus

University of Delhi Delhi India

University of Florida Gainesville USA

University of Hamburg Hamburg Germany

University of Illinois at Chicago Chicago USA

University of Ioánnina Ioannina Greece

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Vanderbilt University Nashville USA

Vilnius University Vilnius Lithuania

Vrije Universiteit Brussel Brussels Belgium

Wayne State University Detroit USA

Wigner Research Centre for Physics Budapest Hungary

Yerevan Physics Institute Yerevan Armenia

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