Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu
Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charg...
Ausführliche Beschreibung
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| Autor*in: |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1994 |
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| Reproduktion: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
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| Übergeordnetes Werk: |
in: Nuclear Physics, Section A - Amsterdam : Elsevier, 571(1994), 3, Seite 588-616 |
| Übergeordnetes Werk: |
volume:571 ; year:1994 ; number:3 ; pages:588-616 |
| Links: |
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| 520 | |a Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. | ||
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| 700 | 1 | |a Badala, A. |4 oth | |
| 700 | 1 | |a Barbera, R. |4 oth | |
| 700 | 1 | |a Bizard, G. |4 oth | |
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| 700 | 1 | |a Cussol, D. |4 oth | |
| 700 | 1 | |a Colin, J. |4 oth | |
| 700 | 1 | |a Durand, D. |4 oth | |
| 700 | 1 | |a Drouet, A. |4 oth | |
| 700 | 1 | |a Laville, J.L. |4 oth | |
| 700 | 1 | |a Le Brun, C. |4 oth | |
| 700 | 1 | |a Lecolley, J.F. |4 oth | |
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| 700 | 1 | |a Rosato, E. |4 oth | |
| 700 | 1 | |a Oubahadou, A. |4 oth | |
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(DE-627)NLEJ181718324 (DE-599)GBVNLZ181718324 DE-627 ger DE-627 rakwb eng Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu 1994 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Vient, E. oth Badala, A. oth Barbera, R. oth Bizard, G. oth Bougault, R. oth Brou, R. oth Cussol, D. oth Colin, J. oth Durand, D. oth Drouet, A. oth Laville, J.L. oth Le Brun, C. oth Lecolley, J.F. oth Louvel, M. oth Patry, J.P. oth Peter, J. oth Regimbart, R. oth Steckmeyer, J.C. oth Tamain, B. oth Peghaire, A. oth Eudes, P. oth Guilbault, F. oth Lebrun, C. oth Rosato, E. oth Oubahadou, A. oth in Nuclear Physics, Section A Amsterdam : Elsevier 571(1994), 3, Seite 588-616 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:571 year:1994 number:3 pages:588-616 http://dx.doi.org/10.1016/0375-9474(94)90227-5 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 571 1994 3 588-616 |
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(DE-627)NLEJ181718324 (DE-599)GBVNLZ181718324 DE-627 ger DE-627 rakwb eng Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu 1994 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Vient, E. oth Badala, A. oth Barbera, R. oth Bizard, G. oth Bougault, R. oth Brou, R. oth Cussol, D. oth Colin, J. oth Durand, D. oth Drouet, A. oth Laville, J.L. oth Le Brun, C. oth Lecolley, J.F. oth Louvel, M. oth Patry, J.P. oth Peter, J. oth Regimbart, R. oth Steckmeyer, J.C. oth Tamain, B. oth Peghaire, A. oth Eudes, P. oth Guilbault, F. oth Lebrun, C. oth Rosato, E. oth Oubahadou, A. oth in Nuclear Physics, Section A Amsterdam : Elsevier 571(1994), 3, Seite 588-616 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:571 year:1994 number:3 pages:588-616 http://dx.doi.org/10.1016/0375-9474(94)90227-5 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 571 1994 3 588-616 |
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(DE-627)NLEJ181718324 (DE-599)GBVNLZ181718324 DE-627 ger DE-627 rakwb eng Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu 1994 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Vient, E. oth Badala, A. oth Barbera, R. oth Bizard, G. oth Bougault, R. oth Brou, R. oth Cussol, D. oth Colin, J. oth Durand, D. oth Drouet, A. oth Laville, J.L. oth Le Brun, C. oth Lecolley, J.F. oth Louvel, M. oth Patry, J.P. oth Peter, J. oth Regimbart, R. oth Steckmeyer, J.C. oth Tamain, B. oth Peghaire, A. oth Eudes, P. oth Guilbault, F. oth Lebrun, C. oth Rosato, E. oth Oubahadou, A. oth in Nuclear Physics, Section A Amsterdam : Elsevier 571(1994), 3, Seite 588-616 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:571 year:1994 number:3 pages:588-616 http://dx.doi.org/10.1016/0375-9474(94)90227-5 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 571 1994 3 588-616 |
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(DE-627)NLEJ181718324 (DE-599)GBVNLZ181718324 DE-627 ger DE-627 rakwb eng Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu 1994 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Vient, E. oth Badala, A. oth Barbera, R. oth Bizard, G. oth Bougault, R. oth Brou, R. oth Cussol, D. oth Colin, J. oth Durand, D. oth Drouet, A. oth Laville, J.L. oth Le Brun, C. oth Lecolley, J.F. oth Louvel, M. oth Patry, J.P. oth Peter, J. oth Regimbart, R. oth Steckmeyer, J.C. oth Tamain, B. oth Peghaire, A. oth Eudes, P. oth Guilbault, F. oth Lebrun, C. oth Rosato, E. oth Oubahadou, A. oth in Nuclear Physics, Section A Amsterdam : Elsevier 571(1994), 3, Seite 588-616 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:571 year:1994 number:3 pages:588-616 http://dx.doi.org/10.1016/0375-9474(94)90227-5 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 571 1994 3 588-616 |
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(DE-627)NLEJ181718324 (DE-599)GBVNLZ181718324 DE-627 ger DE-627 rakwb eng Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu 1994 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Vient, E. oth Badala, A. oth Barbera, R. oth Bizard, G. oth Bougault, R. oth Brou, R. oth Cussol, D. oth Colin, J. oth Durand, D. oth Drouet, A. oth Laville, J.L. oth Le Brun, C. oth Lecolley, J.F. oth Louvel, M. oth Patry, J.P. oth Peter, J. oth Regimbart, R. oth Steckmeyer, J.C. oth Tamain, B. oth Peghaire, A. oth Eudes, P. oth Guilbault, F. oth Lebrun, C. oth Rosato, E. oth Oubahadou, A. oth in Nuclear Physics, Section A Amsterdam : Elsevier 571(1994), 3, Seite 588-616 (DE-627)NLEJ177217928 (DE-600)1466542-6 0375-9474 nnns volume:571 year:1994 number:3 pages:588-616 http://dx.doi.org/10.1016/0375-9474(94)90227-5 GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 571 1994 3 588-616 |
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Vient, E. @@oth@@ Badala, A. @@oth@@ Barbera, R. @@oth@@ Bizard, G. @@oth@@ Bougault, R. @@oth@@ Brou, R. @@oth@@ Cussol, D. @@oth@@ Colin, J. @@oth@@ Durand, D. @@oth@@ Drouet, A. @@oth@@ Laville, J.L. @@oth@@ Le Brun, C. @@oth@@ Lecolley, J.F. @@oth@@ Louvel, M. @@oth@@ Patry, J.P. @@oth@@ Peter, J. @@oth@@ Regimbart, R. @@oth@@ Steckmeyer, J.C. @@oth@@ Tamain, B. @@oth@@ Peghaire, A. @@oth@@ Eudes, P. @@oth@@ Guilbault, F. @@oth@@ Lebrun, C. @@oth@@ Rosato, E. @@oth@@ Oubahadou, A. @@oth@@ |
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Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu |
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Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu |
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Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu |
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Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu |
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hot-nuclei formation and decay: the ar + ag system at 50 and 70 mevu |
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Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu |
| abstract |
Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. |
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Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. |
| abstract_unstemmed |
Hot-nuclei fusion properties have been studied for the Ar + Ag system at 50 and 70 MeV/u bombarding energy. The set up was very well suited to the analysis of sequential evaporation leading to an evaporation residue since the residue was detected in coincidence with all the corresponding light charged particles by use of a 4π- multidetector. An event by event analysis was performed in order to distinguish between particles evaporated from the fusion nucleus and others. It was possible to reconstruct the initial excitation energy of the fusion nucleus by adding the contributions of all the charged decay products and by estimating the neutron contribution. It was found that the excitation energy distributions obtained at 50 and 70 MeV/u were quite similar. Very large values are reached in both cases (~ 600 MeV). This result means that the standard statistical decay observed at limited excitation is still observed for very hot nuclei. The corresponding temperatures were measured from the kinetic-energy spectra slopes. Slightly larger values were observed at 70 MeV/u. This result is consistent with a slightly smaller mass of the fusion nucleus obtained in this case. In a last aspect of the experiment where many particles events were analysed in the 4π set up, it turned out that the highest involved excitation energies can lead either to a multifragment emission, or to a standard sequential statistical decay. |
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Hot-nuclei formation and decay: The Ar + Ag system at 50 and 70 MeVu |
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Vient, E. Badala, A. Barbera, R. Bizard, G. Bougault, R. Brou, R. Cussol, D. Colin, J. Durand, D. Drouet, A. Laville, J.L. Le Brun, C. Lecolley, J.F. Louvel, M. Patry, J.P. Peter, J. Regimbart, R. Steckmeyer, J.C. Tamain, B. Peghaire, A. Eudes, P. Guilbault, F. Lebrun, C. Rosato, E. Oubahadou, A. |
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Vient, E. Badala, A. Barbera, R. Bizard, G. Bougault, R. Brou, R. Cussol, D. Colin, J. Durand, D. Drouet, A. Laville, J.L. Le Brun, C. Lecolley, J.F. Louvel, M. Patry, J.P. Peter, J. Regimbart, R. Steckmeyer, J.C. Tamain, B. Peghaire, A. Eudes, P. Guilbault, F. Lebrun, C. Rosato, E. Oubahadou, A. |
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