CLUSTERING IN RELATIVISTIC DISSOCIATION OF <sup>9</sup><font>Be</font>, <sup>9</sup><font>C</font>, <sup>10</sup><font>C</font> AND <sup>12</sup><font>N</font> NUCLEI
D. A. ArtemenkovJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaV. BradnováJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaR. R. KattabekovJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaК. З. МаматкуловJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaN. K. KornegrutsaJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaD. O. KrivenkovJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaA. MalakhovJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaP. A. RukoyatkinJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaV. V. RusakovaJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaR. StanoevaJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaI. G. ZarubinaJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaP. I. ZarubinJoint Insitute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow region, RussiaN. G. PeresadkoLebedev Institute of Physics, Russian Academy of Sciences, Leninskij prospekt 53, 119991 Moscow, RussiaN. PolukhinaLebedev Institute of Physics, Russian Academy of Sciences, Leninskij prospekt 53, 119991 Moscow, RussiaS. P. KharlamovLebedev Institute of Physics, Russian Academy of Sciences, Leninskij prospekt 53, 119991 Moscow, Russia
2011en
ABI
Аннотация
The dissociation features in nuclear track emulsion of 9 Be , 9,10 C , and 12 N nuclei of 1.2 A GeV energy are presented. The data presented for the nucleus 9 Be can be considered as evidence that there is a core in its structure in the form of 0 + and 2 + states of the 8 Be nucleus having roughly equal weights. Events of coherent dissociation 9 C →3 3 He associated with the rearrangement of the nucleons outside the α-clustering are identified. A pattern of the charge fragment topology in the dissociation of 10 C and 12 N nuclei is obtained for the first time. Contribution of the unbound nucleus decays to the cascade process 10 C → 9 B → 8 Be is identified.
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