Intermittency in {sup 197}Au fragmentation

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review, C

OSTI ID:282110

The concept of factorial moments was applied to an analysis of the dynamical fluctuations in the charge distributions of the fragments emitted from gold nuclei with energies 10.6 and {lt}1.0 GeV/nucleon interacting with emulsion nuclei. Clear evidence for intermittent fluctuations has been found in an analysis using all the particles released from the gold projectile, with a stronger effect observed below 1 GeV/nucleon than at 10.6 GeV/nucleon. For the full data sets, however, the intermittency effect was found to be very sensitive to the singly charged particles, and neglecting these particles strongly reduces the intermittency signal. When the analysis is restricted to the multiply charged fragments, an intermittency effect is revealed only for multifragmentation events, although one that is enhanced as compared to the analysis of all, singly and multiply charged, particles. The properties of the anomalous fractal dimensions suggest a sequential decay mechanism, rather than the existence of possible critical behavior in the process of nuclear fragmentation. The likely influence of the charge conservation effects and the finite size of decaying systems on the observed intermittency signals was pointed out. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 282110
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 4 Vol. 53; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
66 PHYSICS
CHARGE CONSERVATION
CHARGE DISTRIBUTION
CHARGED PARTICLES
FLUCTUATIONS
FRAGMENTATION
GOLD 197
NUCLEAR EMULSIONS
PROJECTILES