Correlations between dilepton yields and pion multiplicities as probe of the deconfinement transition

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Probing early parton kinetics by photons, dileptons and charm

Equilibration processes in pre-equilibrium parton matter are considered. We investigate chemical quark equilibration, partial thermalization and overall thermalization, and their influence on electromagnetic (photons, dileptons) and charmed probes. (orig.)SIGLEAvailable from TIB Hannover: RR 1847(93-16) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

Generalized shock adiabatics and relativistic nuclear collisions

SIGLEAvailable from Gesellschaft fuer Schwerionenforschung m.b.H. (GSI), Darmstadt (DE) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Can one discriminate the thermal dilepton signal against the open charm and bottom decay background in ultrarelativistic heavy-ion collisions?

In ultrarelativistic heavy-ion collisions at #sq root#(s)>20 (120) A.GeV a copious production of charm (bottom) production sets in which, via correlated semileptonic DD (BB) decays, gives rise to a dilepton yield at invariant mass M#approx#2-3 GeV in excess of the Drell-Yan yield and the thermal dilepton signal from deconfined matter as well. We show that appropriate single-electron transverse momentum cuts (suitable for ALICE at LHC) cause a threshold like behavior of the dilepton spectra from heavy-quark meson decays and the Drell-Yan process and can allow to observe a thermal dilepton signal from hot deconfined matter. (orig.)Available from TIB Hannover: RR 1847(235) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Recent development for integrable integro-differential equations

SIGLETIB: RN 5063(90-13) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Nonlocal integrable partners to generalized MKdV and two-dimensional Toda lattice equations in the formalism of a dressing method with quantized spectral parameter

SIGLETIB: RN 5063(90-14) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Transverse momentum dependence of dileptons from parton matter produced in ultrarelativistic heavy-ion collisions

The M _p_e_r_p_e_n_d_i_c_u_l_a_r _t_o scaling property of the dilepton spectrum from early parton matter in ultrarelativistic heavy collisions is analyzed for various mechanisms of initial parton production. If there is no essentially additional scale in the parton distribution we find even for strong off-equilibrium parton matter appproximate scaling, while such scales as low-momentum cut-off or parton mass cause strong scaling violations. (orig.)Available from TIB Hannover: RR 1847(93-23) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman