Fragmentation of carbon ions at 250 MeV/nucleon

Kidd, J.; Lindstrom, P. J.; Crawford, H. J.; Woods, G.S.

doi:10.1103/physrevc.37.2613

Cited by 50 publications

(62 citation statements)

References 23 publications

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“…(ii) The available experimental cross section data, from high-energy primary-beam measurements, are inclusive with respect to the populated bound states of the residues following np, nn, and pp removal [11,12]. The data, at three energies, reveal a significant enhancement of the ratio of unlike-pair yields, σ −np , to those for the like-nucleon pairs, σ −nn and σ −pp .…”

Section: Introductionmentioning

confidence: 99%

Microscopic two-nucleon overlaps and knockout reactions from12C

et al. 2012

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The nuclear structure dependence of direct reactions that remove a pair of like or unlike nucleons from a fast 12 C projectile beam are considered. Specifically, we study the differences in the two-nucleon correlations present and the predicted removal cross sections when using p-shell shell-model and multi-hω no-core shell-model (NCSM) descriptions of the two-nucleon overlaps for the transitions to the mass A = 10 projectile residues. The NCSM calculations use modern chiral two-nucleon and three-nucleon (NN + 3N) interactions. The np-removal cross sections to low-lying T = 0, 10 B final states are enhanced when using the NCSM two-nucleon amplitudes. The calculated absolute and relative partial cross sections to the low-energy 10 B final states show a significant sensitivity to the interactions used, suggesting that assessments of the overlap functions for these transitions and confirmations of their structure could be made using final-state-exclusive measurements of the np-removal cross sections and the associated momentum distributions of the forward traveling projectile-like residues.

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Section: Introductionmentioning

confidence: 99%

Microscopic two-nucleon overlaps and knockout reactions from12C

et al. 2012

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“…Isotopic fragmentation cross sections of Figure 2: Differential fragment production cross section of 12 C( Nat C,x)X at 250 MeV/nucleon calculated by JQMD, JQMD-2.0 and that measured by Kidd et al [14].…”

Section: Resultsmentioning

confidence: 99%

“…12 C( Nat C,x) reactions measured at 250 MeV/nucleon [14] were compared with those calculated using the old JQMD and JQMD-2.0.…”

Section: Resultsmentioning

confidence: 99%

Analysis of angular distribution of fragments in relativistic heavy-ion collisions by quantum molecular dynamics

Ogawa

Sato

Hashimoto

et al. 2016

EPJ Web of Conferences

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To predict angular distribution of fragments produced in nucleusnucleus collisions, JAERI quantum molecular dynamics model (JQMD) was improved. Because JQMD underestimated fragments in the forward angle, which were mainly produced by peripheral collisions, JQMD was revised so as to simulate peripheral collisions accurately. Density-dependent in-medium effect and relativistic effect on nucleonnucleon interactions were incorporated for this purpose. The revised version of JQMD coupled with a statistical decay model was used to calculate differential fragment production cross sections measured in earlier studies. Comparison of the measured data and calculation by the revised and old JQMD showed that the revised JQMD can predict fragment angular distribution better than old JQMD. Particularly, agreement of fragment yield in the forward angle is substantially improved.

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“…It is necessary to include both simultaneous and sequential transfer mechanisms for the two nucleons, and to interface in detail with the structure models since the routes are all coherent, and so phase and coupling conventions need to be carefully checked. A preliminary project is underway to examine the two-nucleon knockout from 12 C as measured at Berkeley Lab in the mid1980s [14]. Already our knockout-reaction colleagues have examined this reaction [28], and our collaboration will examine these reactions soon, when suitable two-nucleon overlap functions have been generated from the No-core Shell Model by Petr Navratil (TRIUMF) and from the Greens Function Monte Carlo method by Ivan Brida (Argonne).…”

Section: Pair Transfersmentioning

confidence: 99%