Observation of the associated production of a single top quark and a W boson in pp collisions at sqrt[s] = 8 TeV

. 2014 Jun 13 ; 112 (23) : 231802. [epub] 20140609

Status PubMed-not-MEDLINE Jazyk angličtina Země Spojené státy americké Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid24972196

The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2 fb(-1) of proton-proton collisions at sqrt[s] = 8 TeV recorded by the CMS experiment at the LHC. Events with two leptons and a jet originating from a b quark are selected. A multivariate analysis based on kinematic and topological properties is used to separate the signal from the dominant tt background. An excess consistent with the signal hypothesis is observed, with a significance which corresponds to 6.1 standard deviations above a background-only hypothesis. The measured production cross section is 23.4 ± 5.4 pb, in agreement with the standard model prediction.

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

Baylor University Waco USA

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 United Kingdom

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

Chonnam National University Institute for Universe and Elementary Particles Kwangju Korea

Chulalongkorn University Bangkok Thailand

Cornell University Ithaca USA

Cukurova University Adana Turkey

Department of Physics University of Helsinki Helsinki Finland

Deutsches Elektronen Synchrotron Hamburg Germany

DSM IRFU CEA Saclay Gif sur Yvette France

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

Ghent University Ghent Belgium

Helsinki Institute of Physics Helsinki Finland

Imperial College London United Kingdom

INFN Laboratori Nazionali di Frascati Frascati Italy

INFN Sezione di Bari

INFN Sezione di Bari and Politecnico di Bari

INFN Sezione di Bari and Università di Bari

INFN Sezione di Bologna

INFN Sezione di Bologna and Università di Bologna

INFN Sezione di Catania

INFN Sezione di Catania and CSFNSM

INFN Sezione di Catania and Università di Catania

INFN Sezione di Firenze

INFN Sezione di Firenze and Università di Firenze

INFN Sezione di Genova

INFN Sezione di Genova and Università di Genova

INFN Sezione di Milano Bicocca

INFN Sezione di Milano Bicocca and Università di Milano Bicocca

INFN Sezione di Napoli

INFN Sezione di Napoli and Università della Basilicata

INFN Sezione di Napoli and Università di Napoli 'Federico II'

INFN Sezione di Napoli and Università G Marconi

INFN Sezione di Padova

INFN Sezione di Padova and Università di Padova

INFN Sezione di Padova and Università di Trento

INFN Sezione di Pavia and Università di Pavia

INFN Sezione di Perugia

INFN Sezione di Perugia and Università di Perugia

INFN Sezione di Pisa

INFN Sezione di Pisa and Scuola Normale Superiore di Pisa

INFN Sezione di Pisa and Università di Pisa

INFN Sezione di Roma

INFN Sezione di Roma and Università di Roma

INFN Sezione di Torino

INFN Sezione di Torino and Università del Piemonte Orientale

INFN Sezione di Torino and Università di Torino

INFN Sezione di Trieste

INFN Sezione di Trieste and Università di Trieste

Institut für Experimentelle Kernphysik Karlsruhe Germany

Institut für Hochenergiephysik der OeAW Wien 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 Theoretical and Experimental Physics Moscow Russia

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

Institute of High Energy Physics and Informatization Tbilisi State University Tbilisi Georgia

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 Rudjer Boskovic Zagreb Croatia

Instituto de Física de Cantabria CSIC Universidad de Cantabria Santander Spain

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 Lisboa Portugal

Lappeenranta University of Technology Lappeenranta Finland

Lawrence Livermore National Laboratory Livermore USA

Massachusetts Institute of Technology Cambridge USA

Middle East Technical University Physics Department Ankara Turkey

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 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 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 Russia

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 United Kingdom

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 Kolkata India

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 EHEP Mumbai India

Tata Institute of Fundamental Research HECR Mumbai India

Technical University of Split Split Croatia

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 Bogota Colombia

Universidad de Oviedo Oviedo Spain

Universidad Iberoamericana Mexico City Mexico

Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil

Universidade Estadual Paulista

Universidade Federal do ABC

Universität Zürich Zurich Switzerland

Université Catholique de Louvain Louvain la Neuve Belgium

Université de Lyon Université Claude Bernard Lyon 1 CNRS IN2P3 Institut de Physique Nucléaire de Lyon Villeurbanne France

Université de Mons Mons Belgium

Université Libre de Bruxelles Bruxelles Belgium

Universiteit Antwerpen Antwerpen Belgium

University College Dublin Dublin Ireland

University of Athens Athens Greece

University of Auckland Auckland New Zealand

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

University of Bristol Bristol United Kingdom

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 California Santa Barbara Santa Barbara USA

University of Canterbury Christchurch New Zealand

University of Colorado at Boulder Boulder USA

University of Cyprus Nicosia Cyprus

University of Debrecen Debrecen Hungary

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 Ioánnina Greece

University of Malaya Jabatan Fizik Kuala Lumpur Malaysia

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 Split Split Croatia

University of Tennessee Knoxville USA

University of Virginia Charlottesville USA

University of Wisconsin Madison 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

Citace poskytuje Crossref.org

Najít záznam

Citační ukazatele

Nahrávání dat ...

Možnosti archivace

Nahrávání dat ...