منابع مشابه
Fluctuations of fragment observables
This contribution presents a review of our present theoretical as well as experimental knowledge of different fluctuation observables relevant to nuclear multifragmentation. The possible connection between the presence of a fluctuation peak and the occurrence of a phase transition or a critical phenomenon is critically analyzed. Many different phenomena can lead both to the creation and to the ...
متن کاملSystematics of fragment observables
Multifragmentation is observed in many reaction types: light ion induced reactions at large incident energies (in the GeV region), central heavy ion collisions from 30 to 100 MeV/u, and peripheral heavy ion collisions between 30 and 1000 MeV/u or above. When nucleus-nucleus collisions are considered, another entrance channel parameter is the corresponding mass asymmetry. The first question whic...
متن کاملIsospin observables from fragment energy spectra
The energy spectra of light charged particles and intermediate mass fragments from 112Sn+ 112Sn and 124Sn+ 124Sn collisions at an incident energy of E/A = 50 MeV have been measured with a large array of silicon strip detectors. We used charged-particle multiplicities detected in an array with nearly 4π coverage to select data from the central collision events. We study isospin observables analo...
متن کاملFluctuations of composite observables and stability of statistical systems.
Thermodynamic stability of statistical systems requires that susceptibilities be semipositive and finite. Susceptibilities are known to be related to the fluctuations of extensive observable quantities. This relation becomes nontrivial, when the operator of an observable quantity is represented as a sum of operators corresponding to the extensive system parts. The association of the dispersions...
متن کاملInvestigation of Low-density Symmetry Energy via Nucleon and Fragment Observables
With stochastic transport simulations we study in detail central and peripheral collisions at Fermi energies and suggest new observables, sensitive to the symmetry energy below normal density. There has been much interest in recent years in the determination of the nuclear symmetry energy as a function of density, which is important for the structure of exotic nuclei as well as for astrophysica...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2006
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2006-10121-x