Effects of. Delta. -isobar degrees of freedom on the reactions sup 3 He(n,. gamma. ) sup 4 He and sup 3 He(p,e sup +. nu. sub e ) sup 4 He at low-energy

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5796382

Schiavilla, R

The cross sections of the radiative {sup 3}He(n,{gamma}){sup 4}He and weak {sup 3}He(p,e{sup +}{nu}{sub e}){sup 4}He capture reactions at thermal neutron and keV proton energies have been calculated with the Variational Monte Carlo method. The ground state and low-energy continuum wave functions have been determined variationally from a realistic Hamiltonian, and include both nucleon and {Delta}-isobar degrees of freedom. The electroweak transition operator contains one- and two-body components in the N + {Delta} Hilbert space.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5796382
• Report Number(s): ANL/CP-75177; CONF-9110327-1; ON: DE92006987
• Resource Relation: Conference: Current problems in theoretical nuclear physics conference, Elba (Italy), 16-18 Oct 1991
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
HELIUM 3 TARGET
NUCLEON REACTIONS
CAPTURE
CROSS SECTIONS
DEGREES OF FREEDOM
ISOBARIC NUCLEI
MOMENTUM TRANSFER
MONTE CARLO METHOD
NEUTRON REACTIONS
PROTON REACTIONS
VARIATIONAL METHODS
WAVE FUNCTIONS
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
FUNCTIONS
HADRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
TARGETS
663430* - Nucleon-Induced Reactions & Scattering- (1992-)
663510 - Nuclear Mass Ranges- A=1-5- (1992-)