Published March 2007 | Version v1
Journal article Metadata-only

Breakup of 6He incident on 209Bi near the Coulomb barrier

Creators

  • 1. Physics Department, University of Notre Dame, Notre Dame, Indiana 46556-5670 (United States)
  • 2. Physics Department, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
  • 3. Physics Department, Wabash College, Crawfordsville, Indiana 47933 (United States)
  • 4. Department of Physics and Engineering, Hope College, Holland, Michigan 49423-9000 (United States)
  • 5. Physics Department, University of Wisconsin-Green Bay, Green Bay, Wisconsin 54311-7001 (United States)
  • 6. Physics Department, Indiana University South Bend, South Bend, Indiana 46634-7111 (United States)
  • 7. Department of Chemistry, Hope College, Holland, Michigan 49423-9000 (United States)

Description

A neutron-α-particle coincidence experiment was performed to study breakup of 6He on a 209Bi target at an incident energy of 22.5 MeV. Direct breakup, as well as breakup through the 2+ excited state of 6He and also the 5He+n channel, could be distinguished. A total breakup cross section of 205±65 mb was measured. The data compare well with a coupled-channels calculation that assumes a 50% reduction in the B(E1) computed from a pure 4He+2n cluster configuration, in agreement with results obtained at much higher energies. A value of B(E2↑)=5.4±0.7e2fm4 is deduced for the 2+ state in 6He

Additional details

Identifiers

DOI
10.1103/PhysRevC.75.031302;

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
75
Journal Issue
3
Journal Page Range
p. 031302-031302.4
ISSN
0556-2813
CODEN
PRVCAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39019057
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
ALPHA PARTICLES; BISMUTH 209; COMPARATIVE EVALUATIONS; COULOMB FIELD; COUPLED CHANNEL THEORY; CROSS SECTIONS; EXCITED STATES; HELIUM 4; HELIUM 5; HELIUM 6; MEV RANGE 10-100; NEUTRONS
Descriptors DEC
ALPHA DECAY RADIOISOTOPES; BARYONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BISMUTH ISOTOPES; CHARGED PARTICLES; ELECTRIC FIELDS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; EVALUATION; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HEAVY NUCLEI; HELIUM ISOTOPES; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MEV RANGE; MILLISECONDS LIVING RADIOISOTOPES; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; RADIATIONS; RADIOISOTOPES; STABLE ISOTOPES

Optional Information

Notes
(c) 2007 The American Physical Society