2018 Impact factor 2.481
Hadrons and Nuclei

Eur. Phys. J. A 9, 371-383

Prompt light particle emission in the \ensuremath{\mathsf{^{36}Ar}} + \ensuremath{\mathsf{^{58}Ni}}reaction at 95 MeV/nucleon

P. Paw\lowski1 - B. Borderie1 - G. Auger2 - Ch.O. Bacri1 - N. Bellaize3 - F. Bocage3 - R. Bougault3 - R. Brou3 - P. Buchet4 - J.L. Charvet4 - A. Chbihi2 - J. Colin3 - D. Cussol3 - R. Dayras4 - A. Demeyer5 - D. Doré4 - D. Durand3 - J.D. Frankland2 - E. Galichet1,8 - E. Genouin-Duhamel3 - E. Gerlic5 - D. Guinet5 - P. Lautesse5 - J.L. Laville2 - J.F. Lecolley3 - R. Legrain4 - N. Le Neindre3 - O. Lopez3 - M. Louvel3 - A.M. Maskay5 - L. Nalpas4 - A.D. Nguyen3 - M. Pârlog6 - J. Péter3 - E. Plagnol1 - M.F. Rivet1 - E. Rosato7 - F. Saint-Laurent2 - S. Salou2 - J.C. Steckmeyer3 - M. Stern 5 - G. Tabacaru6 - B. Tamain3 - L. Tassan-Got1 - O. Tirel2 - E. Vient3 - C. Volant4 - J.P. Wieleczko2
(INDRA Collaboration)

1 Institut de Physique Nucléaire, IN2P3-CNRS, F-91406 Orsay Cedex, France
2 GANIL, CEA and IN2P3-CNRS, B.P. 5027, F-14076 Caen Cedex, France
3 LPC, IN2P3-CNRS, ISMRA and Université, F-14050 Caen Cedex, France
4 DAPNIA/SPhN, CEA/Saclay, F-91191 Gif sur Yvette Cedex, France
5 Institut de Physique Nucléaire, IN2P3-CNRS and Université, F-69622 Villeurbanne Cedex, France
6 National Institute for Physics and Nuclear Engineering, RO-76900 Bucharest-Magurele, Romania
7 Dipartimento di Scienze Fisiche and Sezione INFN, Università di Napoli ``Federico II'', I-80126 Napoli, Italy
8 Conservatoire National des Arts et Métiers, F-75141 Paris Cedex 03, France

Received: 27 July 2000 / Revised version: 23 October 2000
Communicated by P. Schuck

Abstract
The prompt component at intermediate velocity of light charged particles is investigated. An improved coalescence model coupled to the intra-nuclear cascade code ISABEL is used to obtain light complex particle energy spectra and multiplicities as a function of impact parameter. The results are compared with experimental data from the \ensuremath{\mathsf{^{36}Ar}} + \ensuremath{\mathsf{^{58}Ni}}experiment at 95 MeV/nucleon, performed with the INDRA $ 4\pi $ detection system. The calculated prompt component is found to rather well reproduce proton spectra. For complex light charged particles the calculated components well populate the high energy part of spectra. Prompt emission can therefore explain the large transverse energies experimentally observed at mid-rapidity.

PACS
24.10.-i Nuclear-reaction models and methods - 25.70.Lm Strongly damped collisions - 25.70.Pq Multifragment emission and correlations


Copyright Società Italiana di Fisica, Springer-Verlag 2000