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71	Measurement of f0(980) Elliptic Flow in Proton-Lead Collisions at the Large Hadron Collider and Its Possible Quark Content An Gu (17593179) 07 December 2023 (has links) <h4>Exotic hadrons are hadrons with constituent quark content different from the normal meson and baryon. The f<sub>0</sub>(980) hadron is one of the exotic hadron candidates, which was first discovered in $\pi\pi$ scattering experiments in the 1970's. It could be a ordinary quarnk-antiquark meson, a tetraquark exotic state, a kaon-antikaon molecule, or a quark-antiquark-gluon hybrid state.</h4><p dir="ltr">Anisotropic flow (v<sub>n</sub>) is a powerful tool to probe the dynamics of relativistic heavy ion collisions. The observed approximate scaling of v<sub>n</sub> by the number of constituent quarks (NCQ) suggests the importance of partonic degree of freedom in these collisions. Large v<sub>n</sub> and NCQ-scaling have also been observed in high-multiplicity proton-lead (pPb) collisions at the LHC, suggesting similar dynamics in pPb collisions. The empirically established NCQ-scaling can be exploited to probe the constituent quark content of the f<sub>0</sub>(980) hadron.</p><p dir="ltr">We measure the elliptic flow (v<sub>2</sub>) of f<sub>0</sub>(980) in high-multiplicity pPb collisions at 8 TeV with the Compact Muon Solenoid (CMS) detector at the LHC, through its main pion-pion ($\pi^+\pi^-$) decay channel. The invariant mass spectrum is obtained from opposite sign pion pairs, and the combinatorial background is estimated by same-sign pion pairs and subtracted. The f<sub>0</sub>(980) signal and the remaining residual background are modeled by relativistic Breit-Wigner and polynomial functions, respectively. The yield of f<sub>0</sub>(980) is extracted as a function of azimuthal angle relative to the event plane, and the f<sub>0</sub>(980) v<sub>2</sub> is measured as function of $p_T$, corrected for the event-plane resolution. The non-flow component in f<sub>0</sub>(980) v<sub>2</sub> has been estimated by that of K<sub>s</sub><sup>0</sup>. By comparing the measured v<sub>2</sub> of the f<sub>0</sub>(980) to those of other hadrons, we infer the number of constituent quarks for the f<sub>0</sub>(980) assuming NCQ scaling. The f<sub>0</sub>(980) is found to be a 2-quark state in this work. We discuss the systematic uncertainties involved in our study, implications of our result, and possible future works in this endeavor.</p> Nuclear physics Heavy Ion Collisions Anisotropy Flow Exotic Hadron f0(980) NCQ Scaling
72	AZIMUTHAL ANISOTROPY IN HEAVY ION COLLISIONS Pandit, Yadav 27 November 2012 (has links) No description available. Nuclear Physics Heavy ion collisions collective motion flow azimuthal anisotropy phase transition QGP
73	Measurement of Elliptic Flow Coefficients and Derivation of Reaction Plane Dependent Efficiency of Isolated Photons and ϖ<sup>0</sup> in Center-of-Mass Pair Energy 200 GeV Au+Au Collisions at RHIC-PHENIX Danley, Tyler January 2014 (has links) No description available. Physics Particle Physics PHENIX elliptic flow RHIC, Heavy Ion Collisions Gold flow
74	PERFORMANCE OF THE HEAVY FLAVOR TRACKER (HFT) DETECTOR IN STAR EXPERIMENT AT RHIC Alruwaili, Manal Abluk 24 November 2015 (has links) No description available. Nuclear Physics Physics
75	Measurement of charmed meson azimuthal anisotropy in Au+Au collisions at a center of mass energy of 200 GeV per nucleon pair at RHIC Lomnitz, Michael Richard 14 November 2016 (has links) No description available. Nuclear Physics Physics Nuclear Physics Heavy Ion Collisions Quark Gluon Plasma Heavy Flavor RHIC
76	Transport Coefficients of Interacting Hadrons Wiranata, Anton January 2011 (has links) No description available. Physics Shear Viscosity bulk Viscosity Chapman-Enskog Approximation Relaxation Time Approximation Relativistic Heavy Ion Collisions
77	Three-Pion HBT Interferometry at the STAR Experiment Willson, Robert Michael 02 July 2002 (has links) No description available. Physics, Nuclear HBT Interferometry Three Pion Interferometry Relativistic Heavy Ion Collisions STAR Experiment Silicon Vertex Tracker
78	Pion interferometry in AuAu collisions at a center of mass energy per nucleon of 200 GeV López Noriega, Mercedes 29 September 2004 (has links) No description available. Physics, Nuclear Relativistic Heavy Ion Collisions Two particle intensity interferometry Pion intensity interferometry HBT STAR RHIC
79	The beginning and end of heavy ion collisions: using uranium beams and Bose-Einstein correlations as probes of the collision fireball Kuhlman, Anthony Joseph, Jr. 30 July 2007 (has links) No description available. Physics, Nuclear Heavy ion collisions Hanbury Brown-Twiss interferometry final state interactions
80	Geometrical Methods in Heavy Ion Collisions Taliotis, Anastasios Socrates 02 November 2010 (has links) No description available. Physics Heavy Ion Collisions AdS/CFT Correspondence Stress Energy Tensor Nuclear Stopping Transverse Dynamics Eccentricity.

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