http://nuclear.korea.ac.kr/~bhong/class/WhitePaper_PHENIX_RUN1-3.pdf

Formation of dense partonic matter in relativistic nucleus–nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration

Topological charge changing transitions can induce chirality in the quark-gluon plasma by the axial anomaly. We study the equilibrium response of the quark-gluon plasma in such a situation to an external magnetic field. To mimic the effect of the topological charge changing transitions we will introduce a chiral chemical potential. We will show that an electromagnetic current is generated along the magnetic field. This is the chiral magnetic effect. We compute the magnitude of this current as a function of magnetic field, chirality, temperature, and baryon chemical potential.

Chiral magnetic effect

http://fig.if.usp.br/~mleite/PDF/0410022.pdf

The PHOBOS Perspective on Discoveries at RHIC

The effects of topological charge change in heavy ion collisions: “Event by event P and CP violation”

http://cds.cern.ch/record/477870/files/0011241.pdf

Nonlinear gluon evolution in the color glass condensate: I

In very-high-energy nuclear collisions, the initial energy of produced gluons per unit area per unit rapidity, $(\mathrm{dE}/{L}^{2})/d\ensuremath{\eta}$, is equal to $f({g}^{2}\ensuremath{\mu}L)({g}^{2}\ensuremath{\mu}{)}^{3}/{g}^{2}$, where ${\ensuremath{\mu}}^{2}$ is proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, a nonperturbative computation of $f({g}^{2}\ensuremath{\mu}L)$ shows that it varies rapidly for small ${g}^{2}\ensuremath{\mu}L$ but varies only by $\ensuremath{\sim}25%$, from $0.208\ifmmode\pm\else\textpm\fi{}0.004$ to $0.257\ifmmode\pm\else\textpm\fi{}0.005$, for a wide range $35.36$-- $296.98$ in ${g}^{2}\ensuremath{\mu}L$. This includes the range relevant for collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). Extrapolating to SU(3), we estimate $dE/d\ensuremath{\eta}$ for Au-Au collisions in the central region at RHIC and LHC.

Initial energy density of gluons produced in very-high-energy nuclear collisions

Non-perturbative computation of gluon mini-jet production in nuclear collisions at very high energies

The early stages of a relativistic heavy-ion collision are examined in the framework of an effective classical SU(3) Yang-Mills theory in the transverse plane. We compute the initial energy and number distributions, per unit rapidity, at midrapidity, of gluons produced in high-energy heavy-ion collisions. We discuss the phenomenological implications of our results in light of the recent Relativistic Heavy-Ion Collider data.

Coherent gluon production in very-high-energy heavy-ion collisions.

The initial gluon multiplicity per unit area per unit rapidity, dN/L2/d eta, in high energy nuclear collisions, is equal to f(N)(g(2)mu L) (g(2)mu)(2)/g(2), with mu(2) proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, we compute f(N)(g(2)mu L) = 0.14 +/- 0.01 for a wide range in g(2)mu L. Extrapolating to SU(3), we predict dN/L2/d eta for values of g(2)mu L relevant to the Relativistic Heavy Ion Collider and the Large Hadron Collider. We compute the initial gluon transverse momentum distribution, dN/L2/d(2)k( perpendicular), and show it to be well behaved at low k( perpendicular).

Alex Krasnitz

Papers

Initial energy density of gluons produced in very-high-energy nuclear collisions

Non-perturbative computation of gluon mini-jet production in nuclear collisions at very high energies

Coherent gluon production in very-high-energy heavy-ion collisions.

Initial gluon multiplicity in heavy-ion collisions.

Classical gluodynamics of high energy nuclear collisions: an erratum and an update