Phenomenological formula for the inclusive fragmentation cross sections of relativistic heavy ions

Journal Article · Wed Apr 01 00:00:00 EST 1981 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.23.1543· OSTI ID:6789444

Masuda, N; Inoue, K; Ito, Y

We study phenomenologically the inclusive fragmentation cross section data of /sup 12/C and /sup 16/O at 2.1 GeV/nucleon, and /sup 56/Fe at 1.88 GeV/nucleon upon collisions with a /sup 12/C target. The main assumptions on the fragmentation mechanism are the diffractive excitation of the high energy beam nucleus into the state of virtual dissociation and its direct decay into two fragments as was previously proposed by the authors. Starting from Izosimova et al.'s formula for the same problem, we derive a phenomenological inclusive cross section formula for fragment production, which is applicable to both ordinary and very light fragments. We find that the data can be understood if we assume that the fragments are being produced not only in their ground states but also in the low lying excited states. Our formula relates the inclusive cross section of light fragment (cluster) to the effective number of the same cluster in the low lying excited states of the beam nucleus.

• Research Organization: Physics Laboratory, Faculty of Education, Yamagata University, Yamagata 990, Japan
• OSTI ID: 6789444
• Journal Information: Phys. Rev., C; (United States), Vol. 23:4
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 REACTIONS
FRAGMENTATION
CARBON 12 TARGET
IRON 56 REACTIONS
NEON 20 REACTIONS
OXYGEN 16 REACTIONS
BINDING ENERGY
CLUSTER MODEL
CROSS SECTIONS
DECAY
DIFFRACTION MODELS
ENERGY LEVELS
EXPERIMENTAL DATA
GEV RANGE 10-100
INCLUSIVE INTERACTIONS
SPIN
TWO-BODY PROBLEM
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
DATA
ENERGY
ENERGY RANGE
GEV RANGE
HEAVY ION REACTIONS
INFORMATION
INTERACTIONS
MANY-BODY PROBLEM
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
TARGETS
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