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Full-Text Articles in Physics
Exploiting Neutron-Rich Radioactive Ion Beams To Constrain The Symmetry Energy, Z. Kohley, G. Christian, T. Baumann, Paul A. Deyoung, J. E. Finck, N. Frank, M. Jones, J. K. Smith, J. Snyder, A. Spyrou, M. Thoennessen
Exploiting Neutron-Rich Radioactive Ion Beams To Constrain The Symmetry Energy, Z. Kohley, G. Christian, T. Baumann, Paul A. Deyoung, J. E. Finck, N. Frank, M. Jones, J. K. Smith, J. Snyder, A. Spyrou, M. Thoennessen
Faculty Publications
The Modular Neutron Array (MoNA) and 4 Tm Sweeper magnet were used to measure the free neutrons and heavy charged particles from the radioactive ion beam induced Mg-32 + Be-9 reaction. The fragmentation reaction was simulated with the constrained molecular dynamics model (CoMD), which demonstrated that the < N/Z > of the heavy fragments and free neutron multiplicities were observables sensitive to the density dependence of the symmetry energy at subsaturation densities. Through comparison of these simulations with the experimental data, constraints on the density dependence of the symmetry energy were extracted. The advantage of radioactive ion beams as a probe of the …
Third Harmonic Flow Of Charged Particles In Au + Au Collisions At √ S Nn = 200 Gev, L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, Av. V. Alakhverdyants, I. Alekseev, S. Bültmann, I. Koraly, Star Collaboration
Third Harmonic Flow Of Charged Particles In Au + Au Collisions At √ S Nn = 200 Gev, L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, Av. V. Alakhverdyants, I. Alekseev, S. Bültmann, I. Koraly, Star Collaboration
Physics Faculty Publications
We report measurements of the third harmonic coefficient of the azimuthal anisotropy, v3, known as triangular flow. The analysis is for charged particles in Au+Au collisions at √sNN=200 GeV, based on data from the STAR experiment at the BNL Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measurements of triangular flow are extracted from the wide Gaussian, from two-particle cumulants with a pseudorapidity gap, and also from event plane analysis methods with a large pseudorapidity gap between the particles and the event plane. These results are …
Fluctuations Of Charge Separation Perpendicular To The Event Plane And Local Parity Violation In √ˢᴺᴺ = 200 Gev Au + Au Collisions At The Bnl Relativistic Heavy Ion Collider, L. Adamczyk, J. K. Adkins, G. Agakishiev, S. Bültmann, M. Zyzak, Star Collaboration
Fluctuations Of Charge Separation Perpendicular To The Event Plane And Local Parity Violation In √ˢᴺᴺ = 200 Gev Au + Au Collisions At The Bnl Relativistic Heavy Ion Collider, L. Adamczyk, J. K. Adkins, G. Agakishiev, S. Bültmann, M. Zyzak, Star Collaboration
Physics Faculty Publications
Previous experimental results based on data (~ 15 x 106 events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high-statistics 200-GeV Au + Au collisions data set (57 x 106 events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge-separation fluctuations …