Isoscaling in central Sn+Sn collisions at 270 MeV/u (CROSBI ID 316119)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lee, J. W. ; Tsang, M. B. ; Tsang, C. Y. ; Wang, R. ; Barney, J. ; Estee, J. ; Isobe, T. ; Kaneko, M. ; Kurata-Nishimura, M. ; Lynch, W. G. ; Murakami, T. ; Ono, A. ; Souza, S. R. ; Ahn, D. S. ; Atar, L. ; Aumann, T. ; Baba, H. ; Boretzky, K. ; Brzychczyk, J. ; Cerizza, G. ; Chiga, N. ; Fukuda, N. ; Gasparic, Igor ; Hong, B. ; Horvat, A. ; Ieki, K. ; Ikeno, N. ; Inabe, N. ; Jhang, G. ; Kim, Y. J. ; Kobayashi, T. ; Kondo, Y. ; Lasko, P. ; Lee, H. S. ; Leifels, Y. ; Łukasik, J. ; Manfredi, J. ; McIntosh, A. B. ; Morfouace, P. ; Nakamura, T. ; Nakatsuka, N. ; Nishimura, S. ; Otsu, H. ; Pawłowski, P. ; Pelczar, K. ; Rossi, D. ; Sakurai, H. ; Santamaria, C. ; Sato, H. ; Scheit, H. ; Shane, R. ; Shimizu, Y. ; Simon, H. ; Snoch, A. ; Sochocka, A. ; Sumikama, T. ; Suzuki, H. ; Suzuki, D. ; Takeda, H. ; Tangwancharoen, S. ; Togano, Y. ; Xiao, Z. G. ; Yennello, S. J. ; Zhang, Y.
SπRIT Collaboration
engleski
Isoscaling in central Sn+Sn collisions at 270 MeV/u
Experimental information on fragment emissions is important in understanding the dynamics of nuclear collisions and in the development of transportmodel simulating heavy-ion collisions. The composition of complex fragments emitted in the heavy-ion collisions can be explained by statistical models, which assume that thermal equilibrium is achieved at collision energies below 100 MeV/u. Our new experimental data together with theoretical analyses for light particles from Sn+Sn collisions at 270 MeV/u, suggest that the hypothesis of thermal equilibrium breaks down for particles emitted with high transfer momentum. To inspect the system's properties in such limit, the scaling features of the yield ratios of particles from two systems, a neutron-rich system of Sn-132 + Sn-124 and a nearly symmetric system of Sn-108 + Sn-112, are examined in the framework of the statistical multifragmentation model and the antisymmetrized molecular dynamics model. The isoscaling from low energy particles agree with both models. However the observed breakdown of isoscaling for particles with high transverse momentum cannot be explained by the antisymmetrized molecular dynamics model.
Heavy radioactive isotope collisions ; Cluster productions ; Nuclear symmetry energy ; Antisymmetrized molecular dynamics
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Podaci o izdanju
58
2022.
201
10
objavljeno
1434-6001
1434-601X
10.1140/epja/s10050-022-00851-2
