Fragment mass dependence of [ital p][sub [ital T]] at GeV per nucleon energies

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.R525· OSTI ID:7263707

Brady, F P; Christie, W B; Romero, J L; Tull, C E; Chance, J L; Grim, G P; Young, J C ^[1]; Crawford, H J; Kobayashi, T; Lindstrom, P J; Olson, D L; Symons, T J.M.; Tanihata, I; Wieman, H ^[2]; Mueller, W F.J.; Sann, H; Lynen, U ^[3]

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1. Department of Physics and Crocker Nuclear Laboratory, University of California, Davis, California 95616 (United States)
2. Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)
3. Gesellschaft fuer Schwerionenforschung, D-6100 Darmstadt (Germany)

Measurements of the transverse momenta ([ital p][sub [ital T]]) of medium and heavy mass projectile fragments for a range of projectile nuclei ([sup 40]Ar, [sup 93]Nb, [sup 139]La, [sup 197]Au) have been carried out. It is found that the width of the transverse momentum distributions increases more rapidly with projectile and fragment mass than predicted by models based on nucleon momenta in the projectile nuclei. The distributions can be fit by including an additional transverse momentum, [ital p][sub [ital B]] (for Bounce). The extracted values of [ital p][sub [ital B]]/[ital A][sub [ital F]] increase with decreasing [ital A][sub [ital F]], and extrapolations to small [ital A][sub [ital F]] appear to be consistent with the mean values of reaction-plane-projected [ital p][sub [ital T]] per nucleon for light particle (e.g., nucleon) bounce-off.''

• OSTI ID: 7263707
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON 40 REACTIONS
CHARGED-PARTICLE REACTIONS
DISTRIBUTION
GOLD 197 REACTIONS
HEAVY ION REACTIONS
LANTHANUM 139 REACTIONS
LINEAR MOMENTUM
MASS
NIOBIUM 93 REACTIONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
PROJECTILES
TRANSVERSE MOMENTUM