Department of Physics & Astronomy

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Browsing Department of Physics & Astronomy by Subject "2-PARTICLE CORRELATIONS"

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    Elliptic Flow of Charm and Strange Hadrons in High-Multiplicity p plus Pb Collisions at root(NN)-N-s=8.16 TeV
    (American Physical Society, 2018) CMS Collaboration; Buccilli, A.; Cooper, S.I.; Henderson, C.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Universidade Federal do ABC (UFABC); Bulgarian Academy of Sciences; University of Sofia; Beihang University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Tsinghua University; Universidad de los Andes (Colombia); University of Split; Rudjer Boskovic Institute; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Institut Polytechnique de Paris; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Universite Claude Bernard Lyon 1; Georgian Technical University; Ivane Javakhishvili Tbilisi State University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Wigner Research Centre for Physics; Hungarian Institute for Nuclear Research; University of Debrecen; Indian Institute of Science (IISC) - Bangalore; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Homi Bhabha National Institute; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; Guglielmo Marconi University; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Sejong University; Seoul National University (SNU); University of Seoul; Sungkyunkwan University (SKKU); Vilnius University; Universiti Malaya; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Instituto Politecnico Nacional - Mexico; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; Universidad Autonoma de San Luis Potosi; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Novosibirsk State University; Institute of High Energy Physics - IHEP; Tomsk Polytechnic University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; University of California Santa Barbara; California Institute of Technology; Carnegie Mellon University; University of Colorado System; University of Colorado Boulder; Cornell University; United States Department of Energy (DOE); University of Chicago; Fermi National Accelerator Laboratory; State University System of Florida; University of Florida; Florida International University; Florida State University; Florida Institute of Technology; University of Illinois System; University of Illinois Chicago; University of Illinois Chicago Hospital; University of Iowa; Johns Hopkins University; University of Kansas; Kansas State University; Lawrence Livermore National Laboratory; University System of Maryland; University of Maryland College Park; Massachusetts Institute of Technology (MIT); University of Minnesota System; University of Minnesota Twin Cities; University of Mississippi; University of Nebraska System; University of Nebraska Lincoln; State University of New York (SUNY) System; State University of New York (SUNY) Buffalo; Northeastern University; Northwestern University; University of Notre Dame; University System of Ohio; Ohio State University; Princeton University; University of Puerto Rico; University of Puerto Rico Mayaguez; Purdue University System; Purdue University; Purdue University West Lafayette Campus; Rice University; University of Rochester; Rutgers State University New Brunswick; University of Tennessee System; University of Tennessee Knoxville; Texas A&M University System; Texas A&M University College Station; Texas Tech University System; Texas Tech University; Vanderbilt University; University of Virginia; Wayne State University; University of Wisconsin System; University of Wisconsin Madison; Technische Universitat Wien; Universidade Estadual de Campinas; Universidade Federal do Rio Grande do Sul; British University in Egypt; Fayoum University; Ain Shams University; King Abdulaziz University; Universite de Haute-Alsace (UHA); Brandenburg University of Technology Cottbus; Indian Institute of Technology (IIT) - Bhubaneswar; Institute of Physics Bhubaneswar (IOPB); Shoolini University; Visva Bharati University; Isfahan University of Technology; Islamic Azad University; University of Siena; International Islamic University Malaysia; Agensi Nuklear Malaysia; Warsaw University of Technology; Peter the Great St. Petersburg Polytechnic University; Budker Institute of Nuclear Physics; Riga Technical University; Adiyaman University; Istanbul Aydin University; Mersin University; Piri Reis University; Gaziosmanpasa University; Ozyegin University; Izmir Institute of Technology; Marmara University; Kafkas University; Istanbul Bilgi University; Hacettepe University; University of Southampton; Monash University; Karamanoglu Mehmetbey University; Utah System of Higher Education; Utah Valley University; Beykent University; Bingol University; Sinop University; Mimar Sinan Guzel Sanatlar University; Qatar Foundation (QF); Texas A&M University Qatar
    The elliptic azimuthal anisotropy coefficient (\({v}_{2}\)) is measured for charm (\({D}^{0}\)) and strange (\({K}_{S}^{0}\), \(\Lambda \), \({\Xi }^{-}\), and \({\Omega }^{-}\)) hadrons, using a data sample of \(p+\mathrm{Pb}\) collisions collected by the CMS experiment, at a nucleon-nucleon center-of-mass energy of \(\sqrt{{s}_{\mathrm{NN}}}=8.16\text{}\text{}\mathrm{TeV}\). A significant positive \({v}_{2}\) signal from long-range azimuthal correlations is observed for all particle species in high-multiplicity \(p+\mathrm{Pb}\) collisions. The measurement represents the first observation of possible long-range collectivity for open heavy flavor hadrons in small systems. The results suggest that charm quarks have a smaller \({v}_{2}\) than the lighter quarks, probably reflecting a weaker collective behavior. This effect is not seen in the larger PbPb collision system at \(\sqrt{{s}_{\mathrm{NN}}}=5.02\text{}\text{}\mathrm{TeV}\), also presented.
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    Observation of prompt J/psi meson elliptic flow in high-multiplicity pPb collisions at root s(NN)=8.16 TeV
    (Elsevier, 2019) CMS Collaboration; Buccilli, A.; Cooper, S.I.; Henderson, C.; Rumerio, P.; West, C.; Yerevan Physics Institute; Belarusian State University; University of Antwerp; Vrije Universiteit Brussel; Universite Libre de Bruxelles; Ghent University; Universite Catholique Louvain; Centro Brasileiro de Pesquisas Fisicas; Universidade do Estado do Rio de Janeiro; Universidade Estadual Paulista; Universidade Federal do ABC (UFABC); Bulgarian Academy of Sciences; University of Sofia; Beihang University; Chinese Academy of Sciences; Institute of High Energy Physics, CAS; Peking University; Tsinghua University; Universidad de los Andes (Colombia); University of Split; Rudjer Boskovic Institute; University of Cyprus; Charles University Prague; Escuela Politecnica Nacional Ecuador; Egyptian Academy of Scientific Research & Technology (ASRT); Egyptian Knowledge Bank (EKB); Egyptian Network of High Energy Physics (ENHEP); National Institute of Chemical Physics & Biophysics (NICPB); University of Helsinki; Helsinki Institute of Physics; Lappeenranta University of Technology; CEA; UDICE-French Research Universities; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute of Nuclear and Particle Physics (IN2P3); Institut Polytechnique de Paris; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Universite Claude Bernard Lyon 1; Georgian Technical University; Ivane Javakhishvili Tbilisi State University; RWTH Aachen University; Helmholtz Association; Deutsches Elektronen-Synchrotron (DESY); University of Hamburg; Karlsruhe Institute of Technology; National Centre of Scientific Research "Demokritos"; National & Kapodistrian University of Athens; National Technical University of Athens; University of Ioannina; Eotvos Lorand University; Eotvos Lorand Research Network; Hungarian Academy of Sciences; Hungarian Institute for Nuclear Research; University of Debrecen; Indian Institute of Science (IISC) - Bangalore; Homi Bhabha National Institute; National Institute of Science Education & Research (NISER); Panjab University; University of Delhi; Saha Institute of Nuclear Physics; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Bhabha Atomic Research Center (BARC); Tata Institute of Fundamental Research (TIFR); Indian Institute of Science Education & Research (IISER) Pune; University College Dublin; Istituto Nazionale di Fisica Nucleare (INFN); Universita degli Studi di Bari Aldo Moro; Politecnico di Bari; University of Bologna; University of Catania; University of Florence; University of Genoa; University of Milano-Bicocca; University of Naples Federico II; University of Basilicata; Guglielmo Marconi University; University of Padua; University of Trento; University of Pavia; University of Perugia; University of Pisa; Scuola Normale Superiore di Pisa; Sapienza University Rome; University of Turin; University of Eastern Piedmont Amedeo Avogadro; University of Trieste; Kyungpook National University; Chonnam National University; Hanyang University; Korea University; Sejong University; Seoul National University (SNU); University of Seoul; Sungkyunkwan University (SKKU); Vilnius University; Universiti Malaya; Universidad de Sonora; CINVESTAV - Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional; Universidad Iberoamericana Ciudad de Mexico; Benemerita Universidad Autonoma de Puebla; Universidad Autonoma de San Luis Potosi; University of Auckland; University of Canterbury; National Centre for Physics - Pakistan; Quaid I Azam University; National Centre for Nuclear Research; University of Warsaw; Laboratorio de Instrumentacao e Fisica Experimental de Particulas; Joint Institute for Nuclear Research - Russia; National Research Centre - Kurchatov Institute; Petersburg Nuclear Physics Institute; Russian Academy of Sciences; Institute for Nuclear Research of the Russian Academy of Sciences; Alikhanov Institute for Theoretical & Experimental Physics; Moscow Institute of Physics & Technology; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Russian Academy of Science Lebedev Physical Institute; Lomonosov Moscow State University; Novosibirsk State University; Institute of High Energy Physics - IHEP; Tomsk Polytechnic University; University of Belgrade; Centro de Investigaciones Energeticas, Medioambientales Tecnologicas; Autonomous University of Madrid; University of Oviedo; Consejo Superior de Investigaciones Cientificas (CSIC); Universidad de Cantabria; CSIC - Instituto de Fisica de Cantabria (IFCA); University Ruhuna; European Organization for Nuclear Research (CERN); Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; ETH Zurich; University of Zurich; National Central University; National Taiwan University; Chulalongkorn University; Cukurova University; Middle East Technical University; Bogazici University; Istanbul Technical University; National Academy of Sciences Ukraine; Institute for Scintillation Materials of the National Academy of Sciences of Ukraine; Kharkov Institute of Physics & Technology; University of Bristol; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC); STFC Rutherford Appleton Laboratory; Imperial College London; Brunel University; Baylor University; Catholic University of America; University of Alabama Tuscaloosa; Boston University; Brown University; University of California System; University of California Davis; University of California Los Angeles; University of California Riverside; University of California San Diego; University of California Santa Barbara; California Institute of Technology; Carnegie Mellon University; University of Colorado System; University of Colorado Boulder; Cornell University; United States Department of Energy (DOE); University of Chicago; Fermi National Accelerator Laboratory; State University System of Florida; University of Florida; Florida International University; Florida State University; Florida Institute of Technology; University of Illinois System; University of Illinois Chicago; University of Illinois Chicago Hospital; University of Iowa; Johns Hopkins University; University of Kansas; Kansas State University; Lawrence Livermore National Laboratory; University System of Maryland; University of Maryland College Park; Massachusetts Institute of Technology (MIT); University of Minnesota System; University of Minnesota Twin Cities; University of Mississippi; University of Nebraska System; University of Nebraska Lincoln; State University of New York (SUNY) System; State University of New York (SUNY) Buffalo; Northeastern University; Northwestern University; University of Notre Dame; University System of Ohio; Ohio State University; Princeton University; University of Puerto Rico; University of Puerto Rico Mayaguez; Purdue University System; Purdue University; Purdue University West Lafayette Campus; Rice University; University of Rochester; Rutgers State University New Brunswick; University of Tennessee System; University of Tennessee Knoxville; Texas A&M University System; Texas A&M University College Station; Texas Tech University System; Texas Tech University; Vanderbilt University; University of Virginia; Wayne State University; University of Wisconsin System; University of Wisconsin Madison; Technische Universitat Wien; Universidade Estadual de Campinas; Universidade Federal do Rio Grande do Sul; University of Chinese Academy of Sciences, CAS; Suez University; British University in Egypt; Zewail City of Science & Technology; King Abdulaziz University; Universite de Haute-Alsace (UHA); Ilia State University; Brandenburg University of Technology Cottbus; Indian Institute of Technology (IIT) - Bhubaneswar; Institute of Physics Bhubaneswar (IOPB); Shoolini University; Visva Bharati University; Isfahan University of Technology; Islamic Azad University; University of Siena; Kyung Hee University; International Islamic University Malaysia; Agensi Nuklear Malaysia; Warsaw University of Technology; Peter the Great St. Petersburg Polytechnic University; Budker Institute of Nuclear Physics; Riga Technical University; Gaziosmanpasa University; Istanbul Aydin University; Mersin University; Piri Reis University; Adiyaman University; Ozyegin University; Izmir Institute of Technology; Marmara University; Kafkas University; Istanbul University; Istanbul Bilgi University; Hacettepe University; University of Southampton; Monash University; Karamanoglu Mehmetbey University; Utah System of Higher Education; Utah Valley University; Beykent University; Bingol University; Sinop University; Mimar Sinan Guzel Sanatlar University; Qatar Foundation (QF); Texas A&M University Qatar
    A measurement of the elliptic flow (\({v}_{2}\)) of prompt \(J/\psi \) mesons in high-multiplicity \(p\text{Pb}\)collisions is reported using data collected by the CMS experiment at a nucleon-nucleon center-of-mass energy \(\sqrt{{s}_{\text{NN}}}=8.16\phantom{\rule{0.2em}{0ex}}\text{TeV}\). Prompt \(J/\psi \) mesons decaying into two muons are reconstructed in the rapidity region in the nucleon-nucleon center-of-mass frame (\({y}_{\text{cm}}\)), corresponding to either \(-2.86<{y}_{\text{cm}}<-1.86\) or \(0.94<{y}_{\text{cm}}<1.94\). The average \({v}_{2}\) result from the two rapidity ranges is reported over the transverse momentum (\({p}_{T}\) ) range from 0.2 to 10 GeV. Positive \({v}_{2}\) values are observed for the prompt \(J/\psi \) meson, as extracted from long-range two-particle correlations with charged hadrons, for \(2<{p}_{T}<8\) GeV. The prompt \(J/\psi \) results are compared with previous CMS measurements of elliptic flow for open charm mesons (\({D}^{0}\)) and strange hadrons. From these measurements, constraints can be obtained on the collective dynamics of charm quarks produced in high-multiplicity events arising from small systems.