Formation and decay of the compound nucleus studied in the reaction20Ne+27Al

Morgenstern, H.; Bohne, W.; Grabisch, K.; Lehr, H.; Stöffler, W.

doi:10.1007/bf02115841

Cited by 101 publications

(47 citation statements)

References 21 publications

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“…3). Fusion cross sections for the 36 Ar + 96 Zr system at 9A and 16A MeV have recently been investigated using the Langevin force in order to describe density fluctuations [72] (see encircled star symbols in fig. 3).…”

Section: Data Setmentioning

confidence: 99%

“…in refs. [2,36]). Our scaling brings the different systems to lie, on the average, on a common curve made of two segments of the homographic function and not of two straight lines.…”

Section: Data Setmentioning

confidence: 99%

“…Despite a broad coverage in the α and N sys /Z sys variables many of data are for the mass symmetric systems and, in particular, for the systems with the equal number of neutrons N sys and protons Z sys . About 100 additional data points from those measurements which have reported existence of a non-negligible fusion-fission component will be presented p-1 [18,19] 20Ne+16O [20] 24Mg+12C [21] 12C+27Al [22] 16O+24Mg [23] 20Ne+20Ne [20] 28Si+12C [24,25] 14N+27Al [26] 16O+26Mg [23] 18O+24Mg [23] 16O+27Al [27][28][29] 32S+12C [30][31][32][33][34] 20Ne+26Mg [35] 20Ne+27Al [28,36] 20Ne+27Al [28,36] 35Cl+12C [37][38][39] 16O+32S [28] 16O+40Ca [40,41] 28Si+28Si [42][43][44][45][46] 28Si+28Si [42][43][44][45][46] 32S+24Mg [47,48] 19F+40Ca [49,50] 32S+27Al [28,49] 35C...…”

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confidence: 99%

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Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Eudes¹,

Basrak²,

Sébille³

et al. 2013

EPL

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PACS 25.70.Jj -Fusion and fusion-fission reactions PACS 25.70. -z -Low and intermediate energy heavy-ion reactionsAbstract -A meticulous study of nearly 300 fusion-evaporation cross section data reveals that, when properly scaled, fusion excitation function complies with a universal homographic law which is, within experimental errors, reaction system independent. From a such complete and summed complete and incomplete fusion excitation functions extracted are the limiting energy for the complete fusion and the main characteristics (onset, maximum and vanishing) of the incomplete fusion. The DYWAN microscopic transport model correctly predicts the incomplete fusion cross section for incident energies 15A MeV and suggests that the nuclear transparency is at the origin of fusion disappearance.

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Section: Data Setmentioning

confidence: 99%

“…in refs. [2,36]). Our scaling brings the different systems to lie, on the average, on a common curve made of two segments of the homographic function and not of two straight lines.…”

Section: Data Setmentioning

confidence: 99%

mentioning

confidence: 99%

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Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Eudes¹,

Basrak²,

Sébille³

et al. 2013

EPL

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“…However, a real breakthrough was achieved by Inamura et al [10] by performing the particle-γ coincidence measurements and claiming that ICF reactions were arising due to the break-up of incident projectile in peripheral collisions. It was suggested by Morgenstern et al [11] and later on confirmed by several authors [5,6,12] that probability of ICF reaction increases with the increase in incident beam energy. This phenomenon of increase in ICF reaction probability with the incident beam energy was found to be a consequence of maximum angular momentum max , associated with the a e-mail: sabirjhk@gmail.com incoming projectile beam [13].…”

Section: Introductionmentioning

confidence: 83%

Investigation of complete and incomplete fusion in²⁰Ne +⁵¹V system using recoil range measurement

Ali

Ahmad

Kumar

et al. 2015

EPJ Web of Conferences

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Abstract. Recoil range distributions of evaporation residues, populated in 20 Ne + 51 V reaction at E lab ≈ 145 MeV, have been studied to determine the degree of momentum transferred through the complete and incomplete fusion reactions. Evaporation residues (ERs) populated through the complete and incomplete fusion reactions have been identified on the basis of their recoil range in the Al catcher medium. Measured recoil range of evaporation residues have been compared with the theoretical value calculated using the code SRIM. Range integrated cross section of observed ERs have been compared with the value predicted by statistical model code PACE4.

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“…In this experiment, absolute production cross-sections of individual reaction residues populated via CF and/or ICF in 12 C+ 175 Lu, and 13 C+ 169 Tm systems have been measured at energies starting from threshold to 7 MeV/A [7,23]. The target foils of isotopically pure (99.9%) 175 Lu, and 169 Tm along with in 27 Al catchers were prepared using rolling technique. The thickness of the samples were determined from the observed change in the energy of the α-particles by using stopping power values and were found to ≈ 1.5 to ≈ 2.5 mg/cm 2 for both targets and ≈ 1.0 to ≈ 3.0 mg/cm 2 for Al-catchers.…”

Section: Methodsmentioning

confidence: 99%

Effect of projectile on incomplete fusion reactions at low energies

et al. 2017

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Abstract. Present work deals with the experimental studies of incomplete fusion reaction dynamics at energies as low as ≈ 4 -7 MeV/A. Excitation functions populated via complete fusion and/or incomplete fusion processes in 12 C+ 175 Lu, and 13 C+ 169 Tm systems have been measured within the framework of PACE4 code. Data of excitation function measurements on comparison with different projectile-target combinations suggest the existence of ICF even at slightly above barrier energies where complete fusion (CF) is supposed to be the sole contributor, and further demonstrates strong projectile structure dependence of ICF. The incomplete fusion strength functions for 12 C+ 175 Lu, and 13 C+ 169 Tm systems are analyzed as a function of various physical parameters at a constant v rel ≈ 0.053c. It has been found that one neutron (1n) excess projectile 13 C (as compared to 12 C) results in less incomplete fusion contribution due to its relatively large negative α-Q-value, hence, α Q-value seems to be a reliable parameter to understand the ICF dynamics at low energies. In order to explore the reaction modes on the basis of their entry state spin population, the spin distribution of residues populated via CF and/or ICF in 16 O+ 159 Tb system has been done using particle-γ coincidence technique. CF-α and ICF-α channels have been identified from backward (B) and forward (F) α-gated γ spectra, respectively. Reaction dependent decay patterns have been observed in different α emitting channels. The CF channels are found to be fed over a broad spin range, however, ICF-α channels was observed only for high-spin states. Further, the existence of incomplete fusion at low bombarding energies indicates the possibility to populate high spin states.

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Formation and decay of the compound nucleus studied in the reaction20Ne+27Al

Cited by 101 publications

References 21 publications

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Investigation of complete and incomplete fusion in²⁰Ne +⁵¹V system using recoil range measurement

Effect of projectile on incomplete fusion reactions at low energies

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Formation and decay of the compound nucleus studied in the reaction20Ne+27Al

Cited by 101 publications

References 21 publications

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Investigation of complete and incomplete fusion in20Ne +51V system using recoil range measurement

Effect of projectile on incomplete fusion reactions at low energies

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Investigation of complete and incomplete fusion in²⁰Ne +⁵¹V system using recoil range measurement