Recent experimental measurements of high pT hadron spectra and jet correlation at RHIC are analyzed within a parton model which incoporates initial jet production and final propagation in heavy-ion collisions. The suppresion of single hadron spectra, back-to-back correlation, their centrality dependence and azimuthal anisotropy point to a dense matter with an initial parton density about 30 tim...

We report new results on v2(pT ) for Au+Au collisions at √ sNN=200 GeV for charged hadrons, pions, kaons, (anti)protons, K s , and Λ. The analysis is extended to pT = 12 GeV/c for charged hadrons and pT = 4 GeV/c for identified particles. A comparison of the azimuthal anisotropy of charged hadrons measured at √ sNN=130 and 200 GeV is presented. The pT -dependence of baryon versus meson elliptic...

Shear-wave splitting (SWS) analyses are essential in understanding the structure and dynamics of the Earth’s deep interior. While splitting measurements have excellent horizontal resolution relative to other anisotropy-measuring techniques, their vertical resolution is low due to the steep incidence angle of the seismic phases used by the analyses. Here, using synthetic and real data, we presen...

Synchrotron photon spectrum in heavy-ion collisions is computed taking into account the spatial and temporal structure of magnetic field. It is found that a significant fraction of photon excess in heavy-ion collisions in the region k⊥ = 1 − 3 GeV can be attributed to the synchrotron radiation. Azimuthal anisotropy of the synchrotron photon spectrum is characterized by the “flow” coefficients v...

The theory of simple domain walls in planar nematic films is reconsidered taking into account azimuthal director rotations additionally. A perturbation treatment is useful to derive analytical equations which are asymptotically valid in the limit of small distortion amplitudes. In comparison to previously known approaches a more complete description leads to a correction in the formula for the ...

An overview of recent high-pT hadron and photon measurements at RHIC is presented with a focus on the evolution of hadron/photon production from intermediate pT (. 5 GeV/c) to high pT (> 10 GeV/c). Addressed topics include single high-pT hadron production, azimuthal anisotropy of π production, di-jet modification at intermediate pT and inclusive photon-hadron correlations. The understanding of ...

The synchrotron photon spectrum in heavy ion collisions is computed taking into account the spatial and temporal structure of the magnetic field. It is found that a significant fraction of photon excess in heavy ion collisions in the region k ⊥ = 1–3 GeV can be attributed to the synchrotron radiation. Azimuthal anisotropy of the synchrotron photon spectrum is characterized by the Fourier coeffi...

The azimuthal anisotropy of charged particles in heavy ion collisions is an important probe of quark-gluon plasma evolution at early stages. In the present paper the elliptic flow pattern in Pb+Pb collisions at √ s = 5.5 TeV is analyzed for different hadron species in the frameworks of HYDJET++ Monte-Carlo model. The influence of resonance decays on particle flow is investigated. The different ...