147 research outputs found
Strongly Interacting Matter at High Energy Density
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 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
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
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
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
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
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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