Some general properties of projectile fragments in⁴⁰Ar interactions in nuclear emulsions at 1.8 A GeV

Abstract

An analysis of projectile fragments has been performed using 40Ar-emulsion interactions at 1.8A GeV. The interaction mean free path of "'Ar nuclei was obtained on the basis of 46W events which enabled us to calculate the total inelastic cross section. Correlations between the multiplicity of different charged particles were studied extensively to get an insight into the reaction mechanism. The average number of interacting nucleons of the projectile was calculated and compared with results from other experiments. Events with projectile fragments were divided into various reaction channels and several parameters like average emission angle and target particle multiplicities were studied as a function of target mass in different reaction channels. The projectile fragmentation properties were found to be independent of the target for peripheral collisions.

Limiting Fragmentation Behavior of Projectile Helium (Z= 2) Fragments in Nucleus–Nucleus Interactions at 14.6 A GeV

“…The projectile helium fragments with charge Z ¼ 2, have been studied earlier in nuclear emulsion experiments from the point of view of limiting fragmentation by Heckman et al 22) and by Bhanja et al 5) at 2.1 A GeV energy. In this sequence, some other authors [23][24][25] further confirmed this hypothesis experimentally for projectile helium fragments in nucleus-nucleus interactions in later years. Such a quantitative study of limiting fragmentation hypothesis on the experimental basis for the projectile helium fragments in nucleus-nucleus interactions at 14.6 A GeV has not been performed so far.…”

Study of relativistic charged particles production in 84Kr36 emulsion interactions ∼1GeV per nucleon with wounded nucleon model

“…( 5), <N  > = a (A T ) b . (5) Where, A T represents the average target mass number of different target groups based on the number of heavily ionizing charge particle N h in 84 Kr -Emulsion interactions. The best fitting parameters are a = 0.20±0.06 and b = 0.37±0.04 for 84 Kr -Emulsion interactions.…”

“…The various concepts of nuclear physics are extrapolated with heavy-ion collisions and it is essential to check their application in wide range of incident energies i.e. 1 to 200 GeV/n [5][6]. According to the participant spectator model (PS Model) [7][8][9], the interacting systems are divided into three different regions: projectile spectator (PS), target spectator (TS) and participant region i.e.…”

Nuclear diffraction dissociation of16O,22Ne,28Si,32S,56Fe at 1–3.7 A GeV in nuclear emulsion

“…In the frame of the Becquerel Collaboration [1] nuclear emulsion was exposed to beams of light nuclei of 1-3.7 A GeV and the results obtained from the investigation of nuclear diffraction dissociation are given in [2][3][4][5][6][7]. Valuable results were obtained by other authors, for 16 O, 24 Mg and 28 Si at 3.7 A GeV [8], for 16 O at 14.6, 60 and 200 A GeV [9], as well as for 16 O and 28 Si at 200 A GeV [10,11].…”