147 research outputs found

    Strongly Interacting Matter at High Energy Density

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    This lecture concerns the properties of strongly interacting matter (which is described by Quantum Chromodynamics) at very high energy density. I review the properties of matter at high temperature, discussing the deconfinement phase transition . At high baryon density and low temperature, large NcN_c arguments are developed which suggest that high baryonic density matter is a third form of matter, Quarkyonic Matter, that is distinct from confined hadronic matter and deconfined matter. I finally discuss the Color Glass Condensate which controls the high energy limit of QCD, and forms the low x part of a hadron wavefunction. The Glasma is introduced as matter formed by the Color Glass Condensate which eventually thermalizes into a Quark Gluon Plasma

    Strongly Interacting Matter Matter at Very High Energy Density: 3 Lectures in Zakopane

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    These lectures concern the properties of strongly interacting matter at very high energy density. I begin with the Color Glass Condensate and the Glasma, matter that controls the earliest times in hadronic collisions. I then describe the Quark Gluon Plasma, matter produced from the thermalized remnants of the Glasma. Finally, I describe high density baryonic matter, in particular Quarkyonic matter. The discussion will be intuitive and based on simple structural aspects of QCD. There will be some discussion of experimental tests of these ideas.Comment: Presented at the 50'th Crakow School of Theoretical Physics, Zakopane, Poland, June 201

    Gluon Evolution and Saturation Proceedings

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    Almost 40 years ago, Gribov and colleagues at the Leningrad Nuclear Physics Institute developed the ideas that led to the Dokhsitzer-Gribov-Altarelli-Parisi the Baltisky-Fadin-Kuraev-Lipatov equations. These equations describe the evolution of the distributions for quarks and gluon inside a hadron to increased resolution scale of a probe or to smaller values of the fractional momentum of a hadronic constituent. I motivate and discuss the generalization required of these equations needed for high energy processes when the density of constituents is large. This leads to a theory of saturation realized by the Color Glass CondensateComment: Presented at the Gribov Memorial Workshop on Quantum Chromodynamics and Beyon

    From AGS-SPS and Onwards to the LHC

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    I review the history of the efforts using heavy ion collisions to make new forms of matter. I discuss both the development of the theoretical ideas about such new forms of matter, as well the past, present and planned experimental efforts. I also highlight the development of this activity in both India and China.Comment: Plenary talk for Quark Matter 2008 in Jaipur, Indi

    The Ridge, the Glasma and Flow

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    I discuss the ridge phenomena observed in heavy ion collisions at RHIC. I argue that the ridge may be due to flux tubes formed from the Color Glass Condensate in the early Glasma phase of matter produced in such collision

    Two Center Light Cone Calculation of Pair Production Induced by Ultrarelativistic Heavy Ions

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    An exact solution of the two center time-dependent Dirac equation for pair production induced by ultrarelativistic heavy ion collisions is presented. Cross sections to specific final states approach those of perturbation theory. Multiplicity rates are reduced from perturbation theory.Comment: 22 pages, latex, revtex source, one postscript figur
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