arXiv subjects

Markus D. Oldenburg

Publications and source records attributed to Markus D. Oldenburg.

3 recordsLinked to original sources

arXiv2004

Scaling of anisotropic flow in the picture of quark coalescence

Measurements of anisotropic flow at low (p_T < 1.5 GeV/c) and intermediate (1.5 < p_T < 5 GeV/c) transverse momentum from the STAR collaboration are reviewed. While at low p_T an ordering of elliptic flow strength with particle mass is observed, the measured signals appear to follow number-of-constituent quark scaling at intermediate p_T. The observations of higher harmonics support this picture qualitatively, and are sensitive to specific model assumptions.

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arXiv2004

Anisotropic flow in the forward directions at sqrt(s_NN) = 200 GeV

The addition of the two Forward TPCs to the STAR detector allows one to measure anisotropic flow at forward pseudorapidities. This made possible the first measurement of directed flow at collision energies of sqrt(s_NN) = 200 GeV. PHOBOS' results on elliptic flow at forward rapidities were confirmed, and the sign of v2 was determined to be positive for the first time at RHIC energies. The higher harmonic, v4, is consistent with the recently suggested v2^2 scaling behavior.

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arXiv2004

Anisotropic Flow in Ultra-Relativistic Heavy-Ion Collisions

The analysis of anisotropic flow of particles created in high energy heavy-ion collisions gives insight into the early stage of these reactions. Measurements of directed flow (v1), elliptic flow (v2) and flow of 4th and 6th order (v4 and v6) are presented. While the study of v2 for multi-strange particles establishes partonic collectivity the results for higher order anisotropies constrain the initial conditions of hydrodynamic model calculations.

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