Statistical simulation of the break-up of highly excited nuclei

Botvina, A. S.; Iljinov, A. S.; Mishustin, I. N.; Bondorf, J.P.; Donangelo, R.; Sneppen, Kim

doi:10.1016/0375-9474(87)90232-6

Cited by 213 publications

(271 citation statements)

References 46 publications

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“…The statistical multifragmentation model (SMM) [20,21], an equilibrium model of simultaneous fragment emission, uses the configurations of a statistical ensemble to determine the distribution of primary fragments of a compound nucleus. The primary fragments are then assumed to decay by sequential compound emission or Fermi breakup (FBM) [22].…”

Section: Compound Nucleus Decaymentioning

confidence: 99%

Formation and decay of a hot compound nucleus

Carlson

Dalmolin

Dutra

et al. 2014

EPJ Web of Conferences

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Abstract. The compound nucleus plays an important role in nuclear reactions over a wide range of projectile-target combinations and energies. The limits that angular momentum places on its formation and existence are, for the most part, well understood. The limits on its excitation energy are not as clear. Here we first analyze general geometrical and thermodynamical features of a hot compound nucleus. We then discuss the manners by which it can decay and close by speculating on the high energy limit to its formation and existence.

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Section: Compound Nucleus Decaymentioning

confidence: 99%

Formation and decay of a hot compound nucleus

Carlson

Dalmolin

Dutra

et al. 2014

EPJ Web of Conferences

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“…At a given separation distance the de-excitation of PLS via sequential binary decay of light particles (n, Z ≤2) and heavy clusters (up to 18 O) is calculated using a Weisskopf approach [5]. In this model [9], the decay width for the emission of a particle j in the excited state i from a nucleus with (A, Z) is given by:…”

Section: Theoretical Interpretationmentioning

confidence: 99%

The decay time scale for highly excited nuclei as seen from asymmetrical emission of particles

Jändel

Botvina

Yennello

et al. 2004

J. Phys. G: Nucl. Part. Phys.

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A novel method was developed for the extraction of short emission times of light particles from the projectile-like fragments in peripheral deep-inelastic collisions in the Fermi energy domain. We have taken an advantage of the fact that in the external Coulomb field particles are evaporated asymmetrically. It was possible to determine the emission times in the interval 50-500 fm/c using the backward emission anisotropy of α-particles relative to the largest residue, in the reaction 28 Si + 112 Sn at 50 MeV/nucleon. The extracted times are consistent with predictions based on the evaporation decay widths calculated with the statistical evaporation model generalized for the case of the Coulomb interaction with the target.

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“…The reader is referred to ref. [18] for explicit expressions for the terms entering in the equation above. Then the primary yield for the ground state can be related to the total yield by…”

Section: Primary Temperaturesmentioning

confidence: 99%

Nuclear isotope thermometry

et al. 2000

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We discuss different aspects which could influence temperatures deduced from experimental isotopic yields in the multifragmentation process. It is shown that fluctuations due to the finite size of the system and distortions due to the decay of hot primary fragments conspire to blur the temperature determination in multifragmentation reactions. These facts suggest that caloric curves obtained through isotope thermometers, which were taken as evidence for a first-order phase transition in nuclear matter, should be investigated very carefully.

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Statistical simulation of the break-up of highly excited nuclei

Cited by 213 publications

References 46 publications

Formation and decay of a hot compound nucleus

Formation and decay of a hot compound nucleus

The decay time scale for highly excited nuclei as seen from asymmetrical emission of particles

Nuclear isotope thermometry

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