Strong impact parameter dependence of pre-equilibrium particle emission in nucleus-nucleus reactions at intermediate energies
Charged particles and fragments emitted in reactions between 40Ar at 45 and 65 MeV/u and an 27Al target have been detected in a geometry close to 4π in the center of mass. A new global variable, the average parallel velocity, has been used to sort the events as a function of the impact parameter val...
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| Veröffentlicht in: | Physics letters. B 1990-03, Vol.237 (2), p.187-191 |
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| creator | Péter, J. Sullivan, J.P. Cussol, D. Bizard, G. Brou, R. Louvel, M. Patry, J.P. Regimbart, R. Steckmeyer, J.C. Tamain, B. Crema, E. Doubre, H. Hagel, K. Jin, G.M. Péghaire, A. Saint-Laurent, F. Cassagnou, Y. Legrain, R. Lebrun, C. Rosato, E. Macgrath, R. Jeong, S.C. Lee, S.M. Nagashima, Y. Nakagawa, T. Ogihara, M. Kasagi, J. Motobayashi, T. |
| description | Charged particles and fragments emitted in reactions between 40Ar at 45 and 65 MeV/u and an 27Al target have been detected in a geometry close to 4π in the center of mass. A new global variable, the average parallel velocity, has been used to sort the events as a function of the impact parameter value. For particles with Z = 1 and 2, a pre-equilibrium component is present. Its multiplicity increases strongly when the impact parameter value decreases, and reaches 7 in head-on reactions. |
| doi_str_mv | 10.1016/0370-2693(90)91426-C |
| format | Article |
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| ispartof | Physics letters. B, 1990-03, Vol.237 (2), p.187-191 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Nuclear Experiment Physics |
| title | Strong impact parameter dependence of pre-equilibrium particle emission in nucleus-nucleus reactions at intermediate energies |
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