QCD (Quantum ChromoDynamics)

Slides:

Advertisements

Similar presentations

Elliptic flow of thermal photons in Au+Au collisions at 200GeV QNP2009 Beijing, Sep , 2009 F.M. Liu Central China Normal University, China T. Hirano.

Advertisements

The Phase Diagram of Nuclear Matter Oumarou Njoya.

The Color Glass Condensate and RHIC Phenomenology Outstanding questions: What is the high energy limit of QCD? How do gluons and quarks arise in hadrons?

Charm & bottom RHIC Shingo Sakai Univ. of California, Los Angeles 1.

Forward-Backward Correlations in Relativistic Heavy Ion Collisions Aaron Swindell, Morehouse College REU 2006: Cyclotron Institute, Texas A&M University.

Relativistic Heavy-Ion Collisions: Recent Results from RHIC David Hardtke LBNL.

Quark recombination in high energy collisions for different energies Steven Rose Worcester Polytechnic Institute Mentor: Dr. Rainer Fries Texas A&M University.

Measuring initial temperature through Photon to dilepton ratio Collaborators: Jan-e Alam, Sourav Sarkar & Bikash Sinha Variable Energy Cyclotron Centre,

Forward-Backward Correlations in Heavy Ion Collisions Aaron Swindell, Morehouse College REU Cyclotron 2006, Texas A&M University Advisor: Dr. Che-Ming.

We distinguish two hadronization mechanisms:  Fragmentation Fragmentation builds on the idea of a single quark in the vacuum, it doesn’t consider many.

200 GeV Au+Au Collisions, RHIC at BNL Animation by Jeffery Mitchell.

Centrality-dependent pt spectra of Direct photons at RHIC F.M. Liu 刘复明 Central China Normal University, China T. Hirano University of Tokyo, Japan K.Werner.

Identification of Upsilon Particles Using the Preshower Detector in STAR Jay Dunkelberger, University of Florida.

1  /e + e - arXiv: [nucl.th]. 2 3 Sometime ago it was noted that: “The ratio of the production rates (  /  +  - ) and (  o,  /  +  -

Introduction Objectives Dilepton Spectra from Open-Charm Decays in Heavy-Ion Collisions Jia Shen Saint Mary’s College of California Dr. Ralf Rapp Physics.

Intro to Particle and Nuclear Physics and the Long Island Gold Rush Steven Manly Univ. of Rochester REU seminar June 1, 2005

Finite Size Effects on Dilepton Properties in Relativistic Heavy Ion Collisions Trent Strong, Texas A&M University Advisors: Dr. Ralf Rapp, Dr. Hendrik.

Intro to Particle and Nuclear Physics and the Long Island Gold Rush Steven Manly Univ. of Rochester REU seminar June 1, 2006

Sourav Tarafdar Banaras Hindu University For the PHENIX Collaboration Hard Probes 2012 Measurement of electrons from Heavy Quarks at PHENIX.

Dilepton production in HIC at RHIC Energy Haojie Xu( 徐浩洁 ) In collaboration with H. Chen, X. Dong, Q. Wang Hadron2011, WeiHai Haojie Xu( 徐浩洁 )

1 Jozsó Zimányi (1931 – 2006). 2 Jozsó Zimányi I met Prof. Zimányi in India in Member, NA49 and PHENIX Collaborations Nuclear Equation of State.

Christina Markert Physics Workshop UT Austin November Christina Markert The ‘Little Bang in the Laboratory’ – Accelorator Physics. Big Bang Quarks.

New States of Matter and RHIC Outstanding questions about strongly interacting matter: How does matter behave at very high temperature and/or density?

1 The Quark Gluon Plasma and the Perfect Fluid Quantifying Degrees of Perfection Jamie Nagle University of Colorado, Boulder.

Frontiers of Nuclear Physics A Personal Outlook Huan Zhong Huang Department of Physics and Astronomy University of California, Los Angeles Department of.

Relativistic Heavy Ion Physics: the State of the Art.

From Luigi DiLella, Summer Student Program

The Color Glass Condensate Outstanding questions: What is the high energy limit of QCD? How do gluons and quarks arise in hadrons? What are the possible.

Parton Model & Parton Dynamics Huan Z Huang Department of Physics and Astronomy University of California, Los Angeles Department of Engineering Physics.

STRING PERCOLATION AND THE GLASMA C.Pajares Dept Particle Physics and IGFAE University Santiago de Compostela CERN The first heavy ion collisions at the.

Jet quenching and direct photon production F.M. Liu 刘复明 Central China Normal University, China T. Hirano 平野哲文 University of Tokyo, Japan K.Werner University.

Axel Drees, Stony Brook University, Lectures at Trento June 16-20, 2008 Electromagnetic Radiation form High Energy Heavy Ion Collisions I.Lecture:Study.

Effect of thermal fluctuation of baryons on vector mesons and low mass dileptons ρ ω Sanyasachi Ghosh (VECC, Kolkata, India)

High Energy Nuclear Physics and the Nature of Matter Outstanding questions about strongly interacting matter: How does matter behave at very high temperature.

Relativistic Heavy Ion Collider and Ultra-Dense Matter.

Jets as a probe of the Quark Gluon Plasma Jets as a probe of the Quark Gluon Plasma Christine Nattrass Yale University Goldhaber Lecture 2008 Christine.

How To See the Quark-Gluon Plasma

U N C L A S S I F I E D Operated by the Los Alamos National Security, LLC for the DOE/NNSA Slide 0 Study of the Quark Gluon Plasma with Hadronic Jets What:

Dilepton Radiation Measured in PHENIX probing the Strongly Interacting Matter Created at RHIC Y. Akiba (RIKEN Nishina Center) for PHENIX Collaboration.

1 Tatsuya Chujo Univ. of Tsukuba Hadron Physics at RHIC HAWAII nd DNP-APS/JPS Joint Meeting (Sep. 20, 2005)

Heavy-Ion Physics - Hydrodynamic Approach Introduction Hydrodynamic aspect Observables explained Recombination model Summary 전남대 이강석 HIM

High-p T Particles and RHIC Paradigm of Jet Quenching Ahmed M. Hamed NN2012 The 11 th International Conference on Nucleus-Nucleus Collisions 1.

The Color Glass Condensate and Glasma What is the high energy limit of QCD? What are the possible form of high energy density matter? How do quarks and.

BY A PEDESTRIAN Related publications direct photon in Au+Au  PRL94, (2005) direct photon in p+p  PRL98, (2007) e+e- in p+p and Au+Au 

1 Probing dense matter at extremely high temperature Rudolph C. Hwa University of Oregon Jiao Tong University, Shanghai, China April 20, 2009.

05/23/14Lijuan Ruan (BNL), Quark Matter The low and intermediate mass dilepton and photon results Outline: Introduction New results on dileptons.

What have we learned from the RHIC experiments so far ? Berndt Mueller (Duke University) KPS Meeting Seoul, 22 April 2005.

Quark Gluon Plasma Presented by: Rick Ueno Welcome to the presentation of:

Axel Drees, University Stony Brook, PHY 551 S2003 Heavy Ion Physics at Collider Energies I.Introduction to heavy ion physics II.Experimental approach and.

Quarkonium Dissociation Temperature in Hot QCD medium within a quasi-particle model.

Xiaochun He Georgia State University For the PHENIX collaboration

Review of ALICE Experiments

Introduction to pQCD and TMD physics

into a quark-antiquark pair self-coupling of gluons

Study of Charmonium States in Vacuum and High Density Medium

Travis Salzillo1,2, Rainer Fries1, Guangyao Chen1

The 'Little Bang’ in the Laboratory - Physics at the LHC

Recontres de Moriond, March

7/6/2018 Nonperturbative Approach to Equation of State and Collective Modes of the QGP Shuai Y.F. Liu and Ralf Rapp Cyclotron Institute + Dept. of Physics.

Jets as a probe of the Quark Gluon Plasma

Collective Dynamics at RHIC

Probing Quark Matter in the PHENIX Experiment at RHIC

Heavy-Flavour Physics in Heavy-Ion Collisions

Special UCLA Nuclear Physics Seminar

Properties of the Quark-Gluon Plasma

UCLA High Energy & Astro-Particle (HEAP) Seminar

Performance of the STAR Heavy Flavor Tracker in measuring the charged B meson through B  J/Ψ + X decay Elizabeth Brost Department of Physics, Grinnell.

Multiplicity Dependence of Charged Particle, φ Meson and Multi-strange Particle Production in p+p Collisions at

Introduction of Heavy Ion Physics at RHIC

Shingo Sakai for PHENIX Collaborations (Univ. of Tsukuba)

Presentation transcript:

QCD (Quantum ChromoDynamics) NA60 Dilepton Data: Invariant Mass Spectra Finite Size Effects on Dilepton Properties in Relativistic Heavy Ion Collisions -QCD describes the interactions between quarks and gluons. -There are six flavors of quarks, and eight gluons, all carrying color charge Trent Strong, Texas A&M University -The force between quarks is strong and is linear in distance! (coupling constant αs≈1) -Force weakens at small distances (or high energies), so quarks essentially free within close distances (asymptotic freedom) Advisors: Dr. Ralf Rapp, Dr. Hendrik van Hees Texas A&M University Development of excess with centrality, broadening of ρ spectral shape Time Evolution of Relativistic Heavy-Ion Collision Two-Component Model Idea: Attempt to model spectra using two contributions… -Cocktail: Component from hard- scattering processes; surface contribution -Thermal or In-Medium: Components from thermal medium, such as QGP or hadron gas; bulk contribution Relativistic Heavy-Ion Collisions Collision Zone -Colliders accelerate nuclei to very relativistic speeds! (RHIC, γ ≈ 10, v=.995c) -Nuclei collide, a hot and dense region is formed -In this region, QGP and other forms of exotic matter like a hadron gas can form -They allow us to test further the theory of QCD and explore the early universe b Total Spectra = a ∙ (Thermal) + b ∙ (Cocktail) At NA60: In-In @ 158 GeV/Nucleon Results: Naive Two-Component Model Electromagnetic Probes: Dileptons and Photons Peripheral Semiperipheral Quark-Gluon Plasma Dileptons and photons good sources of information from a hot and dense medium since they: a.) are produced abundantly, and throughout the history of the collision. b.) do not interact strongly with the medium. The particles carry this information via their invariant mass and 4-momentum. -Quark-Gluon Plasma (QGP)- form of matter predicted by QCD at high temperature and density. -Predicted transition temperature is ~ 170 MeV, corresponding to a temperature on the order of 1012 K. -As density and temperature become very large, hadrons formed by quarks overlap => quarks lose their affiliation with any particular hadron. -Quarks and gluons form a hot and dense soup! M [GeV] M [GeV] Semicentral Central The ρ meson is the dominant producer of dileptons. M [GeV] M [GeV] Semicentral pT < 0.5 GeV Semicentral pT > 1.0 GeV