Search for dark matter produced in association with heavy-flavor quark pairs in proton-proton collisions at s = 13 TeV

. 2017 ; 77 (12) : 845. [epub] 20171208

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

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid31985736

A search is presented for an excess of events with heavy-flavor quark pairs ( t t ¯ and b b ¯ ) and a large imbalance in transverse momentum in data from proton-proton collisions at a center-of-mass energy of 13 TeV . The data correspond to an integrated luminosity of 2.2 fb - 1 collected with the CMS detector at the CERN LHC. No deviations are observed with respect to standard model predictions. The results are used in the first interpretation of dark matter production in t t ¯ and b b ¯ final states in a simplified model. This analysis is also the first to perform a statistical combination of searches for dark matter produced with different heavy-flavor final states. The combination provides exclusions that are stronger than those achieved with individual heavy-flavor final states.

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

Catholic University of America Washington 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

Fairfield University Fairfield USA

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

Hanyang University Seoul Korea

Helsinki Institute of Physics Helsinki Finland

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

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

INFN Sezione di Padova Università di Padova Padova Italy Università di Trento Trento Italy

INFN Sezione di Pavia Università di Pavia Pavia Italy

INFN Sezione di Perugia Università di Perugia Perugia Italy

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

INFN Sezione di Roma Sapienza Università di Roma Rome Italy

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

INFN Sezione di Trieste Università di Trieste Trieste Italy

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

Institute for Nuclear Problems Minsk Belarus

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 of 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

Kansas State University Manhattan USA

Korea University Seoul Korea

Kyungpook National University Daegu Korea

Laboratoire Leprince Ringuet Ecole polytechnique CNRS IN2P3 Université Paris Saclay 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

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 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

Novosibirsk State University Novosibirsk Russia

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 Northwest 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

RWTH Aachen University 1 Physikalisches Institut Aachen Germany

RWTH Aachen University 3 Physikalisches Institut A Aachen Germany

RWTH Aachen University 3 Physikalisches Institut B Aachen Germany

Saha Institute of Nuclear Physics HBNI 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 A Mumbai India

Tata Institute of Fundamental Research B 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 Rockefeller University New York 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 de Strasbourg CNRS IPHC UMR 7178 67000 Strasbourg France

Université Libre de Bruxelles Brusseles Belgium

Universiteit Antwerpen Antwerpen Belgium

University College Dublin Dublin Ireland

University of Auckland Auckland New Zealand

University of Bristol Bristol UK

University of California Davis Davis USA

University of California Los Angeles USA

University of California Riverside Riverside USA

University of California San Diego La Jolla USA

University of Canterbury Christchurch New Zealand

University of Colorado Boulder Boulder USA

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

University of Maryland College Park USA

University of Minnesota Minneapolis USA

University of Mississippi Oxford USA

University of Nebraska Lincoln Lincoln USA

University of Notre Dame Notre Dame USA

University of Puerto Rico Mayaguez USA

University of Rochester Rochester USA

University of Seoul Seoul Korea

University of Sofia Sofia Bulgaria

University of Tennessee Knoxville USA

University of Virginia Charlottesville USA

University of Wisconsin Madison Madison WI USA

Vanderbilt University Nashville USA

Vilnius University Vilnius Lithuania

Vrije Universiteit Brussel Brussel Belgium

Wayne State University Detroit USA

Wigner Research Centre for Physics Budapest Hungary

Yerevan Physics Institute Yerevan Armenia

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