Published April 15, 1985 | Version v1
Journal article Metadata-only

Meson exchange-current effects in heavy nuclei

Creators

  • 1. Granada Univ. (Spain). Dept. de Fisica Nuclear
  • 2. Kernforschungsanlage Juelich G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik
  • 3. Massachusetts Inst. of Tech., Cambridge (USA). Dept. of Physics
  • 4. Massachusetts Inst. of Tech., Cambridge (USA). Lab. for Nuclear Science

Description

Meson exchange-current effects in the electroexcitation of magnetic states are evaluated in 16O and 208Pb. A new method is suggested which properly includes the influence of the nuclear mean field on meson exchange-current effects. In addition, an effective meson exchange-current operator is developed which considerably simplifies the evaluation of meson exchange-current effects. Over a wide range of momentum transfers, the magnetic cross sections for the electroexcitation of high-spin, stretched 1 plh states are found to be smoothly enhanced by meson exchange currents. (orig.)

Additional details

Publishing Information

Journal Title
Nucl. Phys., A
Journal Volume
436
Journal Issue
4
Series
CODEN: NUPAB.;Nucl. Phys., A.
Journal Page Range
573-592
ISSN
0375-9474

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
16048679
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
COULOMB EXCITATION; DIFFERENTIAL CROSS SECTIONS; ELECTROMAGNETIC FORM FACTORS; ELECTRON REACTIONS; ELECTRONS; FEYNMAN DIAGRAM; HIGH SPIN STATES; INELASTIC SCATTERING; LEAD 208; LEAD 208 TARGET; MEAN-FIELD THEORY; M4-TRANSITIONS; NUCLEAR STRUCTURE; OPE MODEL; OXYGEN 16; OXYGEN 16 TARGET; PARTICLE-HOLE MODEL; QUANTUM OPERATORS; ROTATIONAL STATES; THEORETICAL DATA; VECTOR CURRENTS
Descriptors DEC
ALGEBRAIC CURRENTS; BOSON-EXCHANGE MODELS; CROSS SECTIONS; CURRENTS; DATA; DIAGRAMS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EXCITATION; EXCITED STATES; FERMIONS; FORM FACTORS; HEAVY NUCLEI; INFORMATION; ISOTOPES; LEAD ISOTOPES; LEPTON REACTIONS; LEPTONS; LIGHT NUCLEI; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MULTIPOLE TRANSITIONS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; OBE MODEL; OXYGEN ISOTOPES; PARTICLE MODELS; PARTICLE PROPERTIES; PERIPHERAL MODELS; SCATTERING; STABLE ISOTOPES; TARGETS

Optional Information

Contract/Grant/Project number
Contract DE-AC02-76ER03069