Coherent dissociation {sup 12}C{r_arrow}3{alpha} in lead-enriched emulsion at 4.5 GeV/c per nucleon

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Physics of Atomic Nuclei

OSTI ID:263667

Bazarov, E Kh; Yuldashev, B S ^[1]; Belaga, V V; Chernov, G M ^[2]

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1. Institute of Nuclear Physics, Tashkent (Uzbekistan)
2. Joint Institute for Nuclear Research, Moscow (Russian Federation)

The transverse-momentum distributions and correlation characteristics of relativistic {alpha} particles from the coherent dissociation of a carbon nucleus into three {alpha} particles at 4.5 GeV/c are studied in lead-enriched emulsion. Comparative analysis of data obtained in ordinary and lead-enriched emulsion stacks is performed. It is shown that the statistical model of rapid fragmentation does not describe the momentum and correlation characteristics of {alpha} particles in the rest frame of the carbon nucleus. The estimated decay temperature of {sup 12}C is weakly dependent on the target atomic mass. It is shown that the carbon nucleus undergoing fragmentation acquires angular momentum in the collision. 15 refs., 5 figs., 2 tabs.

• OSTI ID: 263667
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 11 Vol. 58; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALPHA PARTICLES
CARBON 12
CARBON 12 REACTIONS
COHERENT PRODUCTION
DISSOCIATION
GEV RANGE 10-100
NUCLEAR EMULSIONS
NUCLEI