Observation of fast collinear partitioning of the 197Au + 197Au system into three and four fragments of comparable size
Collisions of a very heavy nonfusing nuclear system 197Au + 197Au were studied at an energy of 15MeV/ nucleon. An interesting process of violent reseparation of this heavy system into three or four fragments of comparable size was observed. In the case of ternary partitioning, either the projectile-...
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| creator | Wilczynski, J. Skwira-Chalot, I. Siwek-Wilczynska, K. Pagano, A. Amorini, F. Anzalone, A. Auditore, L. Baran, V. Brzychczyk, J. Cardella, G. Cavallaro, S. B. Chatterjee, M. Colonna, M. de Filippo, E. Di Toro, M. Gawlikowicz, W. Geraci, 1e. Grzeszczuk, A. Guazzoni, P. Kowalski, S. La Guidara, E. Lanzalone, G. Łukasik, J. Maiolino, C. Majka, Z. G. Nicolis, N. Papa, M. Piasecki, E. Pirrone, S. Płaneta, R. Politi, G. Porto, F. Rizzo, F. Russotto, P. Schmidt, K. Sochocka, A. Swiderski, L. Trifiro, A. Trimarchi, M. Wieleczko, J.P. Zetta, L. Zipper, W. |
| description | Collisions of a very heavy nonfusing nuclear system 197Au + 197Au were studied at an energy of 15MeV/ nucleon. An interesting process of violent reseparation of this heavy system into three or four fragments of comparable size was observed. In the case of ternary partitioning, either the projectile-like fragment (PLF) or target-like fragment (TLF) breaks up almost collinearly with the PLF-TLF separation axis. In the case of quaternary reactions, both PLF and TLF were observed breaking up along this direction. By comparison with a dynamical model of deep inelastic collisions it was concluded that the ternary and quaternary reactions occur in semiperipheral collisions, in a range of angular momenta corresponding to about 0.5–0.7 of the maximum L value for grazing collisions. The time elapsing from the scission of the binary PLF + TLF system to the secondary scission of PLF or TLF was estimated to be of about 70–80 fm/c for the ternary reactions and 80–100 fm/c for the quaternary reactions. |
| doi_str_mv | 10.1103/PhysRevC.81.024605 |
| format | Article |
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Chatterjee, M. ; Colonna, M. ; de Filippo, E. ; Di Toro, M. ; Gawlikowicz, W. ; Geraci, 1e. ; Grzeszczuk, A. ; Guazzoni, P. ; Kowalski, S. ; La Guidara, E. ; Lanzalone, G. ; Łukasik, J. ; Maiolino, C. ; Majka, Z. ; G. Nicolis, N. ; Papa, M. ; Piasecki, E. ; Pirrone, S. ; Płaneta, R. ; Politi, G. ; Porto, F. ; Rizzo, F. ; Russotto, P. ; Schmidt, K. ; Sochocka, A. ; Swiderski, L. ; Trifiro, A. ; Trimarchi, M. ; Wieleczko, J.P. ; Zetta, L. ; Zipper, W.</creator><creatorcontrib>Wilczynski, J. ; Skwira-Chalot, I. ; Siwek-Wilczynska, K. ; Pagano, A. ; Amorini, F. ; Anzalone, A. ; Auditore, L. ; Baran, V. ; Brzychczyk, J. ; Cardella, G. ; Cavallaro, S. ; B. Chatterjee, M. ; Colonna, M. ; de Filippo, E. ; Di Toro, M. ; Gawlikowicz, W. ; Geraci, 1e. ; Grzeszczuk, A. ; Guazzoni, P. ; Kowalski, S. ; La Guidara, E. ; Lanzalone, G. ; Łukasik, J. ; Maiolino, C. ; Majka, Z. ; G. Nicolis, N. ; Papa, M. ; Piasecki, E. ; Pirrone, S. ; Płaneta, R. ; Politi, G. ; Porto, F. ; Rizzo, F. ; Russotto, P. ; Schmidt, K. ; Sochocka, A. ; Swiderski, L. ; Trifiro, A. ; Trimarchi, M. ; Wieleczko, J.P. ; Zetta, L. ; Zipper, W.</creatorcontrib><description>Collisions of a very heavy nonfusing nuclear system 197Au + 197Au were studied at an energy of 15MeV/ nucleon. An interesting process of violent reseparation of this heavy system into three or four fragments of comparable size was observed. In the case of ternary partitioning, either the projectile-like fragment (PLF) or target-like fragment (TLF) breaks up almost collinearly with the PLF-TLF separation axis. In the case of quaternary reactions, both PLF and TLF were observed breaking up along this direction. By comparison with a dynamical model of deep inelastic collisions it was concluded that the ternary and quaternary reactions occur in semiperipheral collisions, in a range of angular momenta corresponding to about 0.5–0.7 of the maximum L value for grazing collisions. The time elapsing from the scission of the binary PLF + TLF system to the secondary scission of PLF or TLF was estimated to be of about 70–80 fm/c for the ternary reactions and 80–100 fm/c for the quaternary reactions.</description><identifier>ISSN: 2469-9985</identifier><identifier>EISSN: 2469-9993</identifier><identifier>DOI: 10.1103/PhysRevC.81.024605</identifier><language>eng</language><publisher>American Physical Society</publisher><subject>Nuclear Experiment ; Physics</subject><ispartof>Physical review. 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Nicolis, N.</creatorcontrib><creatorcontrib>Papa, M.</creatorcontrib><creatorcontrib>Piasecki, E.</creatorcontrib><creatorcontrib>Pirrone, S.</creatorcontrib><creatorcontrib>Płaneta, R.</creatorcontrib><creatorcontrib>Politi, G.</creatorcontrib><creatorcontrib>Porto, F.</creatorcontrib><creatorcontrib>Rizzo, F.</creatorcontrib><creatorcontrib>Russotto, P.</creatorcontrib><creatorcontrib>Schmidt, K.</creatorcontrib><creatorcontrib>Sochocka, A.</creatorcontrib><creatorcontrib>Swiderski, L.</creatorcontrib><creatorcontrib>Trifiro, A.</creatorcontrib><creatorcontrib>Trimarchi, M.</creatorcontrib><creatorcontrib>Wieleczko, J.P.</creatorcontrib><creatorcontrib>Zetta, L.</creatorcontrib><creatorcontrib>Zipper, W.</creatorcontrib><title>Observation of fast collinear partitioning of the 197Au + 197Au system into three and four fragments of comparable size</title><title>Physical review. C</title><description>Collisions of a very heavy nonfusing nuclear system 197Au + 197Au were studied at an energy of 15MeV/ nucleon. An interesting process of violent reseparation of this heavy system into three or four fragments of comparable size was observed. In the case of ternary partitioning, either the projectile-like fragment (PLF) or target-like fragment (TLF) breaks up almost collinearly with the PLF-TLF separation axis. In the case of quaternary reactions, both PLF and TLF were observed breaking up along this direction. By comparison with a dynamical model of deep inelastic collisions it was concluded that the ternary and quaternary reactions occur in semiperipheral collisions, in a range of angular momenta corresponding to about 0.5–0.7 of the maximum L value for grazing collisions. 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C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wilczynski, J.</au><au>Skwira-Chalot, I.</au><au>Siwek-Wilczynska, K.</au><au>Pagano, A.</au><au>Amorini, F.</au><au>Anzalone, A.</au><au>Auditore, L.</au><au>Baran, V.</au><au>Brzychczyk, J.</au><au>Cardella, G.</au><au>Cavallaro, S.</au><au>B. Chatterjee, M.</au><au>Colonna, M.</au><au>de Filippo, E.</au><au>Di Toro, M.</au><au>Gawlikowicz, W.</au><au>Geraci, 1e.</au><au>Grzeszczuk, A.</au><au>Guazzoni, P.</au><au>Kowalski, S.</au><au>La Guidara, E.</au><au>Lanzalone, G.</au><au>Łukasik, J.</au><au>Maiolino, C.</au><au>Majka, Z.</au><au>G. Nicolis, N.</au><au>Papa, M.</au><au>Piasecki, E.</au><au>Pirrone, S.</au><au>Płaneta, R.</au><au>Politi, G.</au><au>Porto, F.</au><au>Rizzo, F.</au><au>Russotto, P.</au><au>Schmidt, K.</au><au>Sochocka, A.</au><au>Swiderski, L.</au><au>Trifiro, A.</au><au>Trimarchi, M.</au><au>Wieleczko, J.P.</au><au>Zetta, L.</au><au>Zipper, W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of fast collinear partitioning of the 197Au + 197Au system into three and four fragments of comparable size</atitle><jtitle>Physical review. C</jtitle><date>2010</date><risdate>2010</risdate><volume>81</volume><issn>2469-9985</issn><eissn>2469-9993</eissn><abstract>Collisions of a very heavy nonfusing nuclear system 197Au + 197Au were studied at an energy of 15MeV/ nucleon. An interesting process of violent reseparation of this heavy system into three or four fragments of comparable size was observed. In the case of ternary partitioning, either the projectile-like fragment (PLF) or target-like fragment (TLF) breaks up almost collinearly with the PLF-TLF separation axis. In the case of quaternary reactions, both PLF and TLF were observed breaking up along this direction. By comparison with a dynamical model of deep inelastic collisions it was concluded that the ternary and quaternary reactions occur in semiperipheral collisions, in a range of angular momenta corresponding to about 0.5–0.7 of the maximum L value for grazing collisions. The time elapsing from the scission of the binary PLF + TLF system to the secondary scission of PLF or TLF was estimated to be of about 70–80 fm/c for the ternary reactions and 80–100 fm/c for the quaternary reactions.</abstract><pub>American Physical Society</pub><doi>10.1103/PhysRevC.81.024605</doi><orcidid>https://orcid.org/0000-0002-3418-7251</orcidid><orcidid>https://orcid.org/0000-0002-3418-7251</orcidid></addata></record> |
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| subjects | Nuclear Experiment Physics |
| title | Observation of fast collinear partitioning of the 197Au + 197Au system into three and four fragments of comparable size |
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