Inclusive neutron cross sections from Ne-Pb collisions at 790 MeV/nucleon

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.46.258· OSTI ID:7047909

Baldwin, A R; Madey, R; Zhang, W; Anderson, B D; Keane, D; Varga, J; Watson, J W ^[1]; Westfall, G D ^[2]; Frankel, K ^[3]; Gale, C ^[4]

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1. Kent State University, Kent, Ohio 44242 (United States)
2. Michigan State University, East Lansing, Michigan 44823 (United States)
3. Research Medicine and Radiation Biology Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
4. McGill University, Montreal, Canada H3A-2T8 ( )

Inclusive neutron spectra were measured at 0{degree}, 15{degree}, 30{degree}, 50{degree}, 70{degree}, 90{degree}, 120{degree}, and 160{degree} from Ne-Pb collisions at 790 MeV/nucleon. A peak that originates from neutron evaporation from the projectile appears in the spectra at 0{degree}. The shapes and magnitudes of the spectra are compared with those calculated from models of nucleus-nucleus collisions. The Boltzmann-Uehling-Uhlenbeck (BUU), intranuclear cascade (INC), and firestreak models agree generally with the measured double-differential cross sections and particularly at 50{degree} and beyond; however, none of the models can reproduce the peaks at small angles ({theta}{le}15{degree}). The quantum molecular dynamics (QMD) model underestimates the spectra of the double-differential cross sections at all angles and energies for this asymmetric system. Also, the predictions of the INC model agrees with the angular distribution of the differential cross sections except that it underestimates the cross section at 0{degree}; the BUU prediction overestimates the differential cross section at 0{degree} and 90{degree}; firestreak overpredicts at 15{degree} and 30{degree} and underpredicts at 70{degree} and 90{degree}; and the QMD model underpredicts the measured angular distribution and the energy spectra at forward angles.

• OSTI ID: 7047909
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 46:1; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663580 -- Nuclear Mass Ranges-- A=190-219-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ENERGY SPECTRA
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRONS
HEAVY ION REACTIONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
LEAD
MATTER
METALS
NEON 20 REACTIONS
NEUTRON SPECTRA
NEUTRONS
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
RELATIVISTIC RANGE
SPECTRA