Fragmentation of {sup 14}N, {sup 16}O, {sup 20}Ne, and {sup 24}Mg nuclei at 290 to 1000 MeV/nucleon

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.034909· OSTI ID:21499520

Zeitlin, C; Miller, J; Guetersloh, S; Heilbronn, L; Fukumura, A; Iwata, Y; Murakami, T; Blattnig, S; Norman, R; Mashnik, S ^[1]

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1. Southwest Research Institute, Boulder, Colorado 80302 (United States)

We report fragmentation cross sections measured at 0 deg. for beams of {sup 14}N, {sup 16}O, {sup 20}Ne, and {sup 24}Mg ions, at energies ranging from 290 MeV/nucleon to 1000 MeV/nucleon. Beams were incident on targets of C, CH{sub 2}, Al, Cu, Sn, and Pb, with the C and CH{sub 2} target data used to obtain hydrogen-target cross sections. Using methods established in earlier work, cross sections obtained with both large-acceptance and small-acceptance detectors are extracted from the data and, when necessary, corrected for acceptance effects. The large-acceptance data yield cross sections for fragments with charges approximately half of the beam charge and above, with minimal corrections. Cross sections for lighter fragments are obtained from small-acceptance spectra, with more significant, model-dependent corrections that account for the fragment angular distributions. Results for both charge-changing and fragment production cross sections are compared to the predictions of the Los Alamos version of the quark gluon string model (LAQGSM) as well as the NASA Nuclear Fragmentation (NUCFRG2) model and the Particle and Heavy Ion Transport System (PHITS) model. For all beams and targets, cross sections for fragments as light as He are compared to the models. Estimates of multiplicity-weighted helium production cross sections are obtained from the data and compared to PHITS and LAQGSM predictions. Summary statistics show that the level of agreement between data and predictions is slightly better for PHITS than for either NUCFRG2 or LAQGSM.

• OSTI ID: 21499520
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevC.83.034909; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM
ANGULAR DISTRIBUTION
CARBON
COPPER
CROSS SECTIONS
GLUONS
HEAVY IONS
LEAD
MAGNESIUM 24
METHYLENE BLUE
MEV RANGE 100-1000
NEON 20
NITROGEN 14
NUCLEAR FRAGMENTATION
NUCLEON BEAMS
OXYGEN 16
QUARKS
SIMULATION
STRING MODELS
TIN
ALKALINE EARTH ISOTOPES
AMINES
ANTI-INFECTIVE AGENTS
ANTIMICROBIAL AGENTS
AZINES
BEAMS
BOSONS
CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
COMPOSITE MODELS
DISTRIBUTION
DRUGS
ELEMENTS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXTENDED PARTICLE MODEL
FERMIONS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
IONS
ISOTOPES
LIGHT NUCLEI
MAGNESIUM ISOTOPES
MATHEMATICAL MODELS
METALS
MEV RANGE
NEON ISOTOPES
NITROGEN ISOTOPES
NONMETALS
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN ISOTOPES
PARTICLE BEAMS
PARTICLE MODELS
PHENOTHIAZINES
QUARK MODEL
STABLE ISOTOPES
TRANSITION ELEMENTS