Out-of-plane emission of nuclear matter in Au+Au collisions between 100 and 800 AMeV

6533b7d4fe1ef96bd12628cd

RESEARCH PRODUCT

Out-of-plane emission of nuclear matter in Au+Au collisions between 100 and 800 AMeV

D. Best L. Fraysse D. Wohlfarth W. Neubert U. Sodan J. P. Wessels M. Trzaska N. Cindro N. Herrmann Z. Basrak P. Fintz C. Maazouzi R. ČAplar F. Jundt P. Crochet Y. Leifels C. Pinkenburg D. Moisa Th. Blaich S. C. Jeong S. Hölbling G. Guillaume M. Dželalija C. Cerruti T. Wienold Pascal Dupieux B. Sikora R. Dona G. S. Wang James Ritman Mihai Petrovici M. A. Vasiliev J. Biegansky G. Mgebrishvili V. T. Smolyankin P. Koncz P. Pras Y. Korchagin Z. Seres Z. G. Fan Christian Claude Kuhn Fouad Rami K. M. Teh V. Simion J. P. Coffin I. Belyaev K. Siwek-wilczyńska C. Roy J. Keczkemeti M. Kirejczyk Nicole Bastid L. Tizniti M. Krämer D. Schüll K. Wisniewski A. Sadchikov I. Legrand B. Hong P. Wagner R. Kotte D. Pelte J. Mösner W. Reisdorf Vladislav Manko A. Buta R. P. Freifelder A. Zhilin V. Amouroux K. D. Hildenbrand E. Erö A.l. Lebedev J. P. Alard Z. Fodor A. Gobbi

subject

Physics Nuclear reaction Nuclear and High Energy Physics Phase (waves)Charge (physics)Nuclear matter Azimuth Nuclear physics Nuclear Reactions; Au-197 (Au-197; X); E=100-800 MeV/nucleon; Azimuthal anisotropy; Out-of-plane emission Atomic physics Nuclear Experiment Anisotropy Saturation (magnetic)Beam (structure)

description

We present new experimental results concerning the azimuthal distributions of proton-likes, light and intermediate mass fragments at midrapidity for Au(100-800 AMeV)+Au collisions measured with the FOPI phase-I detector at GSI in Darmstadt. The azimuthal distributions are investigated as a function of the collision centrality, the incident energy, the fragment charge and transverse momentum. The azimuthal anisotropy is maximum for impact parameters around 7 fm. Intermediate mass fragments present a stronger out-of-plane emission signal than light fragments and a saturation is reached for Z greater than or equal to 4. The azimuthal anisotropy increases with the fragment transverse momentum and decreases as the incident energy increases. The azimuthal anisotropy of Z = 2 particles investigated as a function of the scaled fragment transverse momentum follows an universal curve for bombarding energies between 250-800 AMeV. A signature for a transition from in-plane to out-of-plane emission is evidenced at the lowest beam energies.

year	journal	country	edition	language
1997-09-01	Nuclear Physics A

https://doi.org/10.1016/s0375-9474(97)80700-2