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Photon and neutral pion production in Au plus Au collisions at root s(NN)=130 GeV
(American Physical Society, 2004)
We report inclusive photon measurements about midrapidity (ygammagamma decay channel. The fractional contribution of the pi(0)-->gammagamma decay to the inclusive photon spectrum decreases by 20%+/-5% between p(t)=1.65 ...
Search for temperature and N/Z dependent effects in the decay of A=98 compound nuclei
(American Physical Society, 2004)
Fusion-evaporation reactions induced by 110 MeV B-11 and radioactive C-11 on Rb-87 targets have been studied by measuring evaporation residue-light particle coincidences. The proton to alpha particle ratio in each reaction ...
Variation of the density of states in amorphous GdSi at the metal-insulator transition
(American Physical Society, 2004)
We have performed detailed conductivity and tunneling measurements on the amorphous, magnetically doped material alpha-GdxSi1-x, which can be driven through the metal-insulator transition by the application of an external ...
Superconducting transition temperature in heterogeneous ferromagnet-superconductor systems
(American Physical Society, 2004)
We study the superconducting phase transition in two systems: ferromagnet-superconductor bilayer (FSB) and a thin superconducting film with a periodic array of magnetic dots (SFMD) upon it. We show that this transition is ...
Dielectric function of diluted magnetic semiconductors in the infrared regime
(American Physical Society, 2004)
We present a study of the dielectric function of metallic (III,Mn)V diluted magnetic semiconductors in the infrared regime. Our theoretical approach is based on the kinetic exchange model for carrier induced (III,Mn)V ...
Manifestation of the spin Hall effect through charge-transport in the mesoscopic regime
(American Physical Society, 2004)
We study theoretically the manifestation of the spin Hall effect in a two-dimensional electronic system with Rashba spin-orbit coupling via dc-transport measurements in realistic mesoscopic H-shape structures. The ...
Magnetization relaxation in (Ga,Mn)As ferromagnetic semiconductors
(American Physical Society, 2004)
We describe a theory of Mn local-moment magnetization relaxation due to p-d kinetic-exchange coupling with the itinerant-spin subsystem in the ferromagnetic semiconductor (Ga,Mn)As alloy. The theoretical Gilbert damping ...
Production of e(+)e(-) pairs accompanied by nuclear dissociation in ultraperipheral heavy-ion collisions
(American Physical Society, 2004)
We present data on e(+)e(-) pair production accompanied by nuclear breakup in ultraperipheral gold-gold collisions at a center of mass energy of 200 GeV per nucleon pair. The nuclear breakup requirement selects events at ...
Isoscalar multipole strength in Cd-110 and Cd-116
(American Physical Society, 2004)
The giant resonance region from 10 MeV<E-x<55 MeV in Cd-110 and Cd-116 has been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0degrees. In Cd-110(Cd-116), 88+21-13% (104+23-13%) of ...
Compression mode resonances in Zr-90
(American Physical Society, 2004)
The giant resonance region from 10 MeV < E-x < 55 MeV in Zr-90 has been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0degrees. The isoscalar monopole resonance was found to contain ...