Polarization, dynamics, and nonequilibrium complex-fragment emission

Journal Article · Mon Apr 11 04:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.1479· OSTI ID:5421895

Tsang, M B; Lynch, W G; Ronningen, R M; Chen, Z; Gelbke, C K; Nayak, T; Pochodzalla, J; Zhu, F; Tohyama, M; Trautmann, W; others, and

The sign of the emission angle for nonequilibrium intermediate-mass fragments was determined from the circular polarization of coincident ..gamma.. rays for /sup 14/N-induced reactions on /sup 154/Sm at E/A = 35 MeV. Positive polarizations, P/sub ..gamma../less than or equal to0.3--0.4, are observed for fragments with 3less than or equal toZless than or equal to6, consistent with fragment emission after deflection by the attractive nuclear mean field to negative emission angles. These polarizations are small compared to the trends established for nonequilibrium light particles and the expectations of simple dynamical production mechanisms.

• Research Organization: National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
• OSTI ID: 5421895
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 60:15; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

651820* -- Nuclear Properties & Reactions
A=150-189
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
COINCIDENCE METHODS
COUNTING TECHNIQUES
DATA
ENERGY RANGE
EXPERIMENTAL DATA
GAMMA SPECTRA
HEAVY ION REACTIONS
INFORMATION
MEV RANGE
MEV RANGE 100-1000
NITROGEN 14 REACTIONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUMERICAL DATA
POLARIZATION
SAMARIUM 154 TARGET
SPALLATION
SPALLATION FRAGMENTS
SPECTRA
TARGETS