Photon-induced multiple particle emissions of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Zr</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>90</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi /><mml:mrow><mml:mi fontstyle="normal">nat</mml:mi></mml:mrow></mml:msup></mml:mrow></mml:math>Zr from 10 to 140 MeV

Rodrigues, T. E.; Martins, M. C.; García, C.; Arruda‐Neto, J. D. T.; Mesa, J.; Shtejer, K.; Garcı́a, F.

doi:10.1103/physrevc.75.014605

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…However, in Fig. 3(b) the higher values of cross-sections in the tail portion of the EFs may be an indication of pre-equilibrium-emission at higher energies [49][50][51][52], which is not taken into account in these calculations.…”

Section: Analysis Of Efs With Pace4mentioning

confidence: 83%

Observation of large incomplete fusion in 16O + 103Rh system at

Gupta

Singh

et al. 2008

Nuclear Physics A

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Section: Analysis Of Efs With Pace4mentioning

confidence: 83%

Observation of large incomplete fusion in 16O + 103Rh system at

Gupta

Singh

et al. 2008

Nuclear Physics A

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“…It was demonstrated for two nuclei, 40 Ca and 208 Pb, that this refined description of the nuclear surface improves the description of one-nucleonremoval reactions. The need of structural effects in INC models for a realistic description of experimental observables was already pointed out in other works, for instance, to study photon-nucleus reactions [11,28,29] and the Primakoff effect [30], providing reasonable results for photoproduction yields.…”

Section: Introductionmentioning

confidence: 97%

Improvement of one-nucleon removal and total reaction cross sections in the Liège intranuclear-cascade model using Hartree-Fock-Bogoliubov calculations

et al. 2017

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The prediction of one-nucleon-removal cross sections by the Liège intranuclear-cascade model has been improved using a refined description of the matter and energy densities in the nuclear surface. Hartree-FockBogoliubov calculations with the Skyrme interaction are used to obtain a more realistic description of the radial-density distributions of protons and neutrons, as well as the excitation-energy uncorrelation at the nuclear surface due to quantum effects and short-range correlations. The results are compared with experimental data covering a large range of nuclei, from carbon to uranium, and projectile kinetic energies. We find that the new approach is in good agreement with experimental data of one-nucleon-removal cross sections covering a broad range in nuclei and energies. The new ingredients also improve the description of total reaction cross sections induced by protons at low energies, the production cross sections of heaviest residues close to the projectile, and the triple-differential cross sections for one-proton removal. However, other observables such as quadruple-differential cross sections of coincident protons do not present any sizable sensitivity to the new approach. Finally, the model is also tested for light-ion-induced reactions. It is shown that the new parameters can give a reasonable description of the nucleus-nucleus total reaction cross sections at high energies.

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“…Pre-equilibrium (PE) emission in light-ion-induced (LIinduced) reactions has been a topic of considerable interest during the past decade or so from both theoretical and experimental aspects, owing to the strong competition between equilibrium and the pre-equilibrium emission of light nuclear particles [1][2][3][4]. In PE emission, energetic light nuclear particles (neutrons and protons) are emitted predominantly at the initial stages of the nuclear interactions.…”

mentioning

confidence: 99%

Large pre-equilibrium contribution inα+natNiinteractions at≈8−40
Yadav
¹
,
Singh
²
,
Sharma³
et al. 2008
Phys. Rev. C
12
0
3
0
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To investigate pre-equilibrium emission of light nuclear particle(s), an experiment has been performed using α beams at the Variable Energy Cyclotron Center (VECC), Kolkata, India. In the present work, excitation functions for 58 Ni(α, p) 61 Cu, 58 Ni(α, pn) 60 Cu, 60 Ni(α, p2n) 61 Cu, 60 Ni(α, n) 63 Zn, 60 Ni(α, 2n) 62 Zn, 61 Ni(α, 3n) 62 Zn, and 61 Ni(α, 2n) 63 Zn reactions have been measured by using the stacked foil activation technique followed by off-line γ -ray spectroscopy. Experimentally measured excitation functions have been compared with the prediction of the theoretical model code ALICE-91 with and/or without the inclusion of pre-equilibrium emission. Analysis of the data suggests that an admixture of both equilibrium and pre-equilibrium emission is needed to reproduce experimental data at energies ≈8-40 MeV and reveals significant contribution from pre-equilibrium emission. An attempt has also been made to estimate the pre-equilibrium contribution, which has been found to depend on projectile energy and on number of emitted particle(s). PACS number(s): 25.60.Dz, 25.70.Gh Pre-equilibrium (PE) emission in light-ion-induced (LIinduced) reactions has been a topic of considerable interest during the past decade or so from both theoretical and experimental aspects, owing to the strong competition between equilibrium and the pre-equilibrium emission of light nuclear particles [1][2][3][4]. In PE emission, energetic light nuclear particles (neutrons and protons) are emitted predominantly at the initial stages of the nuclear interactions. The emission of light nuclear particles in the PE emission process followed by nonstatistical γ rays are assumed to arise from the interaction of the projectile with the target nucleons at the early stage of reaction. However, at later stages, a fully equilibrated compound nucleus (CN) may be formed and this nucleus further decays by statistical evaporation of light nuclear particles and/or characteristic γ radiations. Recent experiments have established that, at moderate excitation energies, the equilibrium decay is influenced by the emission of light nuclear particles before the equilibration of the composite system. Some of the important experimental signatures of PE emission that have emerged from the literature are (i) the presence of a larger number of high-energy light nuclear particles in the exit channel as compared to the number emitted in equilibrium decay, (ii) a forward-peaked angular distribution of light nuclear particles, and (iii) slowly decreasing tails of the excitation functions (EFs) [5][6][7][8]. A better understanding of these aforementioned characteristics of PE emission may provide important information about the involved reaction mechanism. The measurement and analysis of the EFs can be used as an informative probe of the PE emission process. In fact, the features of the EFs at low, medium, and high energies may reveal the characteristics of the involved reaction mechanism. The low-energy portion of EFs is dominated * pushpendrapsingh@gmail...

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Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

Cited by 5 publications

References 35 publications

Observation of large incomplete fusion in 16O + 103Rh system at

Observation of large incomplete fusion in 16O + 103Rh system at

Improvement of one-nucleon removal and total reaction cross sections in the Liège intranuclear-cascade model using Hartree-Fock-Bogoliubov calculations

Large pre-equilibrium contribution inα+natNiinteractions at≈8−40
Yadav
¹
,
Singh
²
,
Sharma³
et al. 2008
Phys. Rev. C
12
0
3
0
View full text Add to dashboard Cite

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Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

Cited by 5 publications

References 35 publications

Observation of large incomplete fusion in 16O + 103Rh system at

Observation of large incomplete fusion in 16O + 103Rh system at

Improvement of one-nucleon removal and total reaction cross sections in the Liège intranuclear-cascade model using Hartree-Fock-Bogoliubov calculations

Large pre-equilibrium contribution inα+natNiinteractions at≈8−40Yadav1, Singh2, Sharma3 et al. 2008Phys. Rev. C12030View full textAdd to dashboardCite

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Large pre-equilibrium contribution inα+natNiinteractions at≈8−40
Yadav
¹
,
Singh
²
,
Sharma³
et al. 2008
Phys. Rev. C
12
0
3
0
View full text Add to dashboard Cite