Thermal characteristics of composite systems formed in fusion of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Si</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>28</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>with<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">

Wile, J.L.; Datta, Sudipto; Schröder, W. U.; Tōke, J.; Pade, D.; Baldwin, S. P.; Huizenga, J.R.; Quednau, B.; deSouza, R. T.; Szabo, B.M.

doi:10.1103/physrevc.47.2135

Cited by 9 publications

(3 citation statements)

References 32 publications

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“…The present work and related studies [7,12,13] demonstrate the importance of high efficiency detector arrays for this kind of work. It is essential that the final state be characterized as completely as possible with high statistical precision.…”

Section: Discussionsupporting

confidence: 62%

Origin of correlations between evaporation protons and discrete γ rays in heavy-ion fusion-evaporation reactions

et al. 1994

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We have investigated correlations between evaporated protons and discrete p rays in the heavyion fusion-evaporation reactions Ni( Al, jp) Sr and Ni( Si,4p) Sr. Sp-y and 4p-p coincidences were measured using a 4m charged-particle detector array. The events studied were completely reconstructed kinematically in order to determine the excitation energy of formation of Sr. Correlations arising from well-understood kinematic effects were measured and found to be well reproduced by predictions made by the statistical-model evaporation code PACE2. Dynamical correlations due to nuclear structure effects were searched for by measuring proton spectra in coincidence with discrete p rays from four rotational bands in Sr. Contrary to published results, no significant shifts of the first moment of the spectra were observed.PACS number(s): 25.70. Gh, 24.60.Dr, 27.50.+e

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Section: Discussionsupporting

confidence: 62%

Origin of correlations between evaporation protons and discrete γ rays in heavy-ion fusion-evaporation reactions

et al. 1994

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“…Maximum value for K is observed for Z R = 52 and 53. We have no microscopic understanding of these observations but would like to point out that similar differences in level-density parameter in neighboring nuclei with excitation energy around 60 to 90 MeV have been observed [29]. To understand the role of dinuclear complex formation during fusion process in producing these apparent differences, we have calculated the Businaro-Gallone critical mass asymmetry for various -partial waves in present systems.…”

Section: Resultsmentioning

confidence: 82%

Angular momentum dependence of the nuclear level-density parameter aroundZ~50

et al. 2008

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α-particle evaporation spectra and γ -ray multiplicities were measured for various target-projectile systems corresponding to residual nuclei in the range of Z R = 48-55 and with excitation energy in the range of 30-40 MeV. The high-energy part of the evaporation spectra were analyzed using the statistical model code PACE2 to derive values of the inverse level-density parameter (K). The K values were found to be in the range of 9.0-10.5 for all systems. Angular momentum dependence of the inverse level-density parameter was investigated using the γ -ray multiplicity data. It is seen that there are strong variations in K as a function of angular momentum for many systems. Present results provide important input information for a systematic understanding of the statistical properties of nuclei at moderate excitation energies and angular momenta.

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“…In general, new detailed experimental data and sophisticated model calculations allow us to understand whether the foundations of the statistical model hold for the compound nuclei populated in heavy ions reactions. Assuming that the statistical nature of the compound nucleus decay is experimentally ascertained, some open questions are still related to the description of the average shapes of the highly excited, rapidly rotating nuclei and their influences on the basic nuclear properties like level densities, yrast line position and emission barrier heights [21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%