Higher Harmonic Anisotropic Flow Measurements of Charged Particles in Pb-Pb Collisions at s N N = 2.76 TeV
University of Bergen · Lawrence Livermore National Laboratory · +123 more institutions
Abstract
We report on the first measurement of the triangular v3, quadrangular v4, and pentagonal v5 charged particle flow in Pb-Pb collisions at sqrt(s(NN)) = 2.76 TeV measured with the ALICE detector at the CERN Large Hadron Collider. We show that the triangular flow can be described in terms of the initial spatial anisotropy and its fluctuations, which provides strong constraints on its origin. In the most central events, where the elliptic flow v2 and v3 have similar magnitude, a double peaked structure in the two-particle azimuthal correlations is observed, which is often interpreted as a Mach cone response to fast partons. We show that this structure can be naturally explained from the measured anisotropic flow…
Citation impact
- FWCI
- 114.71
- Percentile
- 100%
- References
- 31
Authors
945Topics & keywords
- Physics
- Anisotropy
- Large Hadron Collider
- Charged particle
- Flow (mathematics)
- Hadron
- Parton
- Particle physics
Funding
- NSNational Science Foundation
- UDU.S. Department of Energy
- CCERN
- NRNational Research Foundation
- MOMinistry of Education, Culture, Sports, Science and Technology
- SVStichting voor Fundamenteel Onderzoek der Materie
- DGDanmarks Grundforskningsfond
- ISInternational Science and Technology Center
- FDFundação de Amparo à Pesquisa do Estado de São Paulo
- NNNational Natural Science Foundation of ChinaAward: IN2P3
- AOAcademy of Finland
- BFBundesministerium für Bildung und Forschung
- CNConsejo Nacional de Ciencia y Tecnología
- NONederlandse Organisatie voor Wetenschappelijk Onderzoek
- HSHungarian Scientific Research Fund
- CNConselho Nacional de Desenvolvimento Científico e Tecnológico
- NRNational Research Foundation of Korea
- JIJoint Institute for Nuclear Research
- NKNemzeti Kutatási és Technológiai Hivatal
- KOKnut och Alice Wallenbergs Stiftelse
- IAInternational Atomic Energy Agency
- CNCentre National de la Recherche ScientifiqueAward: CNRS-IN2P3
- FDFinanciadora de Estudos e Projetos
- NFNorges Forskningsråd
- XDXunta de Galicia
- FAFederal Agency of Atomic Energy of the Russian Federation
- INIstituto Nazionale di Fisica Nucleare
- CDCentro de Aplicaciones Tecnológicas y Desarrollo Nuclear
- SAScience and Technology Facilities CouncilAwards: IN2P3, GRIDPP, ST/F011989/1
- RARussian Academy of Sciences
- DGDirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México
- CDCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas
- INInstitut National de Physique Nucléaire et de Physique des Particules