Correlations of neutral and charged particles in $^{40}$Ar- $^{58}$Ni reaction at 77 MeV/u

K. Wosińska; J. Pluta; F. Hanappe; L. Stuttge; J.C. Angélique; B. Benoit; E. de Goes Brennand; G. Bizard; J. Colin; G. Costa; P. Desesquelles; O. Dorvaux; D. Durand; B. Erazmus; S. Kuleshov; R. Lednicky; F.M. Marqués; Th. Materna; K. Mikhailov; G. Papatheofanous; T. Pawlak; A. Staranowicz; A. Stavinskiy; B. Tamain; A. Vlasov; L. Vorobyev

HAL : in2p3-00149009, version 1

DOI : 10.1140/epja/i2006-10279-1

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European Physical Journal A 32 (2007) 55-59

Correlations of neutral and charged particles in $^{40}$Ar- $^{58}$Ni reaction at 77 MeV/u

K. Wosińska, J. Pluta, F. Hanappe, L. Stuttge¹, J.C. Angélique², B. Benoit, E. de Goes Brennand, G. Bizard², J. Colin², G. Costa¹, P. Desesquelles³, O. Dorvaux¹, D. Durand², B. Erazmus⁴, S. Kuleshov, R. Lednicky, F.M. Marqués², Th. Materna, K. Mikhailov, G. Papatheofanous, T. Pawlak, A. Staranowicz, A. Stavinskiy, B. Tamain², A. Vlasov, L. Vorobyev

(2007)

The measurement of the two-particle correlation function for different particle species allows to obtain information about the development of the particle emission process: the space-time properties of emitting sources and the emission time sequence of different particles. The single-particle characteristics and two-particle correlation functions for neutral and charged particles registered in forward direction are used to determine that the heavy fragments (deuterons and tritons) are emitted in the first stage of the reaction (pre-equilibrium source) while the majority of neutrons and protons originates from the long-lived quasi-projectile. The emission time sequence of protons, neutrons and deuterons has been obtained from the analysis of non-identical particle correlation functions.

1 :	DRS-IPHC - Département Recherches Subatomiques

2 :	LPCC - Laboratoire de Physique Corpusculaire de Caen

3 :	LPSC - Laboratoire de Physique Subatomique et de Cosmologie

4 :	SUBATECH - Laboratoire SUBATECH Nantes

équipe(s) de recherche : Applications industrielles et médicales
Structure nucléaire
Dynamique et thermodynamique nucléaire

Thème(s)

Physique/Physique Nucléaire Expérimentale

Mot(s)-clé(s) : Particle correlations – Relativistic heavy-ion collisions


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Soumis le : Jeudi 24 Mai 2007, 09:40:09
Dernière modification le : Jeudi 24 Mai 2007, 10:20:33