Directed collective flow and azimuthal distributions in collisions from 55 to 95 MeV/u
| Autor: | B. Tamain, F. Saint-Laurent, C. Cabot, J. C. Angelique, J.C. Steckmeyer, R. Popescu, P. Eudes, C. Lebrun, Jean Péter, R. Brou, A. Buta, E. Vient, Z.Y. He, Gerard Auger, G. Bizard, D. Cussol, R. Regimbart, Y. El Masri, Elio Rosato, A. Kerambrun, Edilson Crema, A. Péghaire |
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| Rok vydání: | 1997 |
| Předmět: |
Physics
Nuclear reaction Nuclear and High Energy Physics 010308 nuclear & particles physics Plane (geometry) Function (mathematics) 01 natural sciences Charged particle Azimuth Nuclear physics Flow (mathematics) 0103 physical sciences Transverse momentum Impact parameter Atomic physics Nuclear Experiment 010306 general physics |
| Zdroj: | Nuclear Physics A. 614:261-288 |
| ISSN: | 0375-9474 |
| DOI: | 10.1016/s0375-9474(96)00436-8 |
| Popis: | A 4 pi charged particle detector array with a low velocity threshold has been used to detect the products from reactions induced by Ar-36 on Al-27 at energies ranging from 55 to 95 MeV/u. Well characterized events were selected and sorted as a function of the impact parameter. Two methods were used for sorting these events with respect to their impact parameters and three methods were compared to determine the reaction plane. The transverse momentum analysis has been found to be the best method to extract the direction of the reaction plane for this system and for the experimental set-up used here. The energy of vanishing flow for central collisions has been found to be around 90-95 MeV/u. The azimuthal distributions of mid-rapidity particles exhibit a preferential in-plane emission and no squeeze-out effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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