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SUMMARY:Peculiarities of the momentum spectra of light fragments at 56Fe f
 ragmentation with incident energy of 230 MeV/nucleon.
DTSTART;VALUE=DATE-TIME:20241023T070000Z
DTEND;VALUE=DATE-TIME:20241023T071500Z
DTSTAMP;VALUE=DATE-TIME:20260517T015746Z
UID:indico-contribution-4183@cern.ch
DESCRIPTION:Speakers: A.A. Kulikovskaya (NRC Kurchatov Institute)\nNew exp
 erimental results were obtained for the fragmentation of 230 MeV/nucleon 5
 6Fe on 9Be\, 27Al\, 64Cu targets. The experiment was carried out on the FR
 AGM setup at TWA heavy ion facility. The detector FRAGM allows to measure 
 the fragment momentum with high accuracy at an angle of 3.5 degrees [1\,2]
 . It was found that the momentum distribution of light fragments in the re
 st frame of the incident nucleus has a double-humped structure\, which is 
 not typical for fragmentation processes. This paper contains a phenomenolo
 gical description of the magnitude of momentum peak splitting\, which is e
 specially manifested in proton spectra and decreases for heavier fragments
 . Experimental results are compared with data obtained on the FRS-GSI setu
 p [3] and with the predictions of different models of nucleus-nuclear coll
 isions. The possible source of this phenomenon is connected with coulomb e
 ffects in the asymmetric fission.\n\nBibliography\n\n[1] B.M. Abramov et a
 l.\, Phys.Atom.Nucl. 85\, 1541 (2022).\n\n[2] A.A. Kulikovskaya et al.\, P
 hys.Atom.Nucl. 85\, 466 (2022).\n\n[3] P. Napolitani et al.\, Phys.Rev. C 
 70\, 054607 (2004).\n\nhttps://indico.particle.mephi.ru/event/436/contribu
 tions/4183/
LOCATION: Moskvorechye 2
URL:https://indico.particle.mephi.ru/event/436/contributions/4183/
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