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187 results on '"Hinde, D.J."'

51. Exploratory studies towards fusion with the 16$^+$ isomer of $^{178}$Hf

Author

Hinde, D.J., Rowley, N., Dasgupta, M., Butt, R.D., Morton, C.R., Mukherjee, A., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
2003

54. Fusion barrier distributions

Author

Leigh, J.R., Dasgupta, M., Hinde, D.J., Mein, J.C., Morton, C.R., Lemmon, R.C., Lestone, J.P., Newton, J.O., Timmers, H., Wei, J.X., Rowley, N., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette

Published
1996

55. Barrier distributions from elastic scattering

Author

Rowley, N., Timmers, H., Leigh, J.R., Dasgupta, M., Hinde, D.J., Mein, J.C., Morton, C.R., Newton, J.O., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette

Published
1996

61. Applications of a 6.5T Superconducting Solenoidal Separator

Author

Hinde, D.J., primary, Dasgupta, M., additional, Rodriguez, M.D., additional, Rafiei, R., additional, Brown, M.L., additional, Horsley, A.J., additional, Carter, I.P., additional, Kibedi, T., additional, Lobanov, N., additional, Weisser, D.C., additional, Evers, M., additional, Lane, G.J., additional, Luong, D.H., additional, Wakhle, A., additional, and Williams, E., additional

Published
2012
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62. Properties of neutron emission in fission processes induced by Ne-20 + Tb-159 and Ne-20 + Tm-169 reactions between E = 8 and 16-MeV/nucleon

Author

UCL - SC/PHYS - Département de physique, Keutgen, Thomas, Cabrera Jamoulle, Juan, Roberfroid, V., Tilquin, I., Regimbart, R., Charity, R.J., Natowitz, J.B., Hagel, K., Wada, R., Hinde, D.J., El Masri, Youssef, Dufauquez, Christophe, Ninane, Alain, Van Mol, Jos, UCL - SC/PHYS - Département de physique, Keutgen, Thomas, Cabrera Jamoulle, Juan, Roberfroid, V., Tilquin, I., Regimbart, R., Charity, R.J., Natowitz, J.B., Hagel, K., Wada, R., Hinde, D.J., El Masri, Youssef, Dufauquez, Christophe, Ninane, Alain, and Van Mol, Jos

Published
2004

63. Probing fusion barrier distributions with quasi-elastic scattering

Author

Timmers, H., Leigh, J.R., Dasgupta, M., Hinde, D.J., Lemmon, R.C., Mein, J.C., Morton, C.R., Newton, J.O., Rowley, N., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), and Heyd, Yvette

Published
1995

72. Disentangling the reaction mechanisms of weakly bound nuclei

Author

Gomes, P.R.S., primary, Padron, I., additional, Crema, E., additional, Capurro, O.A., additional, Fernández Niello, J.O., additional, Marti, G.V., additional, Arazi, A., additional, Trotta, M., additional, Lubian, J., additional, Ortega, M.E., additional, Pacheco, A.J., additional, Rodríguez, M.D., additional, Testoni, J.E., additional, Anjos, R.M., additional, Chamon, L.C., additional, Dasgupta, M., additional, Hinde, D.J., additional, and Hagino, K., additional

Published
2006
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77. Dynamical approach to fusion-fission process in superheavy mass region.

Author

Aritomo, Y., Hinde, D.J., Wakhle, A., Du Rietz, R., Dasgupta, M., Hagino, K., Chiba, S., and Nishio, K.

Subjects
*HEAVY ions, *SUPERHEAVY elements, *NUCLEAR fission, *NUCLEAR fusion, *COULOMB functions, *LANGEVIN equations
Abstract

In order to describe heavy-ion fusion reactions around the Coulomb barrier with an actinide target nucleus, we propose a model which combines the coupled-channels approach and a fluctuation-dissipation model for dynamical calculations. This model takes into account couplings to the collective states of the interacting nuclei in the penetration of the Coulomb barrier and the subsequent dynamical evolution of a nuclear shape from the contact configuration. In the fluctuation-dissipation model with a Langevin equation, the effect of nuclear orientation at the initial impact on the prolately deformed target nucleus is considered. Fusion-fission, quasi-fission and deep quasi-fission are separated as different Langevin trajectories on the potential energy surface. Using this model, we analyze the experimental data for the mass distribution of fission fragments (MDFF) in the reaction of 36S + 238U at several incident energies around the Coulomb barrier. [ABSTRACT FROM AUTHOR]

Published
2012
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78. Quasifission and Shell Effects in Reactions Forming 266Sg.

Author

Wakhle, A., Hinde, D.J., Dasgupta, M., Du Rietz, R., Simene, C., Evers, M., Luong, D.H., and Rafiei, R.

Subjects
HEAVY elements, SEABORGIUM, HEAVY nuclei, SUPERHEAVY elements, NUCLEAR reactions
Abstract

The role of shell effects in reactions forming the heavy element 266Sg was investigated using the Mass Angle Distribution technique. For the 34S + 232Th reaction the doubly magic shell closure at 208Pb was found to strongly influence asymmetric quasifission, the exit channel at sub barrier energies. The evolution of the dinuclear system is arrested as it passes through this mass region. Mass splits corresponding to AL /AH ≈ 58/208 are seen for a large range of angles indicating a long timescale for this process. The more mass asymmetric 28Si + 238U reaction has a much smaller quasifission cross section. Therefore the shell effects around 208Pb are not dominant here. [ABSTRACT FROM AUTHOR]

Published
2012
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79. Sub-barrier transfer in 16O+ Pb and 32S+ 208Pb and its role in understanding the suppression of fusion.

Author

Evers, M., Dasgupta, M., Hinde, D.J., and Simene, C.

Subjects
HEAVY ion collisions, COLLISIONS (Nuclear physics), QUANTUM theory, HARTREE-Fock approximation, EXCITATION spectrum
Abstract

A detailed analysis of the projectile-like fragments detected at backward angles in the reactions 16O, 32S+208Pb at energies below the fusion barrier is presented. Excitation functions corresponding to nucleon transfer with ΔZ = 1 and ΔZ = 2 were extracted, indicating surprisingly large absolute probabilities at sub-barrier energies. A comparison of 2p transfer probabilities with time-dependent Hartree-Fock calculations suggests strong pairing correlations between the two protons. Excitation energies in the projectile-like fragments up to ~ 15MeV for the 16O and ~ 25MeV for 32S-induced reactions demonstrate the population of highly excited states in the residual nuclei, indicating substantial dissipation of kinetic energy. These highly inelastic (large excitation energies) and complex (correlated few-nucleon transfer) processes may be closely related to the depletion of fusion through tunnelling at sub-barrier energies. [ABSTRACT FROM AUTHOR]

Published
2012
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84. Fusion dynamics around the Coulomb barrier.

Author

Hagiro, K., Rowley, N., Ohtsuki, T., Dasgupta, M., Newton, J.O., and Hinde, D.J.

Subjects
NUCLEAR fusion, NUCLEAR fission, COLLISIONS (Nuclear physics), EXCITON theory, COULOMB excitation, NUCLEAR physics
Abstract

We perform exact coupled-channels calculations, taking into account properly the effects of Coulomb coupling and the finite excitation energy of collective excitations in the colliding nuclei, for three Fm formation reactions, 37Cl + 209Bi, 45Sc + 197Au, and 59Co + 181Ta. For the 37Cl + 209Bi and 45Sc + 197Au reactions, those calculations well reproduce the experimental total fission cross sections, and a part of the extra-push phenomena can be explained in terms of the Coulomb excitations to multi-phonon states. On the other hand, for the heaviest system, the deep-inelastic collisions become much more significant, and the fission cross sections are strongly overestimated. We also discuss the surprisingly large surface diffuseness parameters required to fit recent high-precision fusion data for medium-heavy systems, in connection with the fusion supression observed in massive systems. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2004
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91. Fusion barrier distributions and fission anisotropies

Author

Hinde, D.J., primary, Morton, C.R., additional, Dasgupta, M., additional, Leigh, J.R., additional, Lestone, J.P., additional, Lemmon, R.C., additional, Mein, J.C., additional, Newton, J.O., additional, Timmers, H., additional, Rowley, N., additional, and Kruppa, A.T., additional

Published
1995
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98. Unexpected inhibition of fusion in nucleus-nucleus collissions.

Author

Berriman, A.C., Hinde, D.J., Dasgupta, M., Morton, C.R., Butt, R.D., and Newton, J.O.

Subjects
*NUCLEAR fusion, *NUCLEAR reactions
Abstract

Provides evidence on the inhibition of fusion in nucleus-nucleus collisions. Prediction of inhibition when the product Z[sub 1]Z[sub 2] of the charges of the projectile and target nuclei is larger than about 1,600; Proof on the presence of quasi-fission; Reduced cross-sections for evaporation residues as a function of excitation energy.

Published
2001
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