HAL : in2p3-00436630, version 1

arXiv : nucl-ex/0110004

DOI : 10.1103/PhysRevC.66.044603

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Physical Review C 66 (2001) 044603

Caloric curve of 8 GeV/c negative pion and antiproton + Au reactions

A. Ruangma, R. Laforest, E. Martin, E. Ramakrishnan, D. J. Rowland, M. Veselsky, E. M. Winchester, S. J. Yennello, L. Beaulieu, W. -C. Hsi, K. Kwiatkowski, T. Lefort1, 2, V. E. Viola2, A. Botvina, R. G. Korteling, L. Pienkowski, H. Breuer, S. Gushue, L. P. Remsberg

(2001)

The relationship between nuclear temperature and excitation energy of hot nuclei formed by 8 GeV/c negative pion and antiproton beams incident on 197Au has been investigated with the ISiS 4-pidetector array at the BNL AGS accelerator. The double-isotope-ratio technique was used to calculate the temperature of the hot system. The two thermometers used (p/d-3He/4He) and (d/t-3He/4He) are in agreement below E*/A ~ 7 MeV when corrected for secondary decay. Comparison of these caloric curves to those from other experiments shows some differences that may be attributable to instrumentation and analysis procedures. The caloric curves from this experiment are also compared with the predictions from the SMM multifragmentation model.

1 :	LPCC - Laboratoire de Physique Corpusculaire de Caen
2 :	IUCF - Indiana University Cyclotron Facility

Thème(s)

:

Physique/Physique Nucléaire Expérimentale

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Contributeur : Sandrine Guesnon <>

Soumis le : Vendredi 27 Novembre 2009, 13:41:17

Dernière modification le : Vendredi 27 Novembre 2009, 15:18:44