Published April 2, 2002 | Version v1
Journal article Metadata-only

A new determination of the E1 amplitude of 12C(α,γ)16O at energies of astrophysical interest

Creators

  • 1. Dipartimento di Scienze Fisiche, Universita di Napoli Federico II and INFN, Naples (Italy)
  • 2. Dipartimento di Scienze Ambientali, Seconda Universita di Napoli, Caserta and INFN, Naples (Italy)
  • 3. Institut fuer Physik mit Ionenstrahlen, Ruhr-Universitaet Bochum, Bochum (Germany)
  • 4. Atomki, Debrecen (Hungary)
  • 5. Colorado School of Mines, Colorado (United States)
  • 6. Laboratori Nazionali del Sud, INFN, Catania (Italy)

Description

The reaction 12C(α,γ)16O has a strong influence on both stellar evolution and nucleosynthesis after the helium burning stage in massive stars. The E1 amplitude of this astrophysical important reaction was measured in inverse kinematics using a 4He windowless gas target and an intense 12C ion beam in combination with an array of HPGe detectors. The results of this measurement were extrapolated to the relevant energy for helium burning (E0=300 keV) using the R-matrix formalism of nuclear reactions. The error on the extrapolated value was determined via a Monte Carlo procedure. The results of this experiment and of their extrapolation to E0 are presented and compared with previous data

Additional details

Identifiers

DOI
10.1063/1.1469972;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
610
Journal Issue
1
Journal Page Range
p. 466-469
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
International nuclear physics conference on nuclear physics in the 21st century
Acronym
INPC 2001
Dates
30 Jul - 3 Aug 2001
Place
Berkeley, CA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36062385
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALPHA REACTIONS; CARBON 12 TARGET; E1-TRANSITIONS; EXTRAPOLATION; HELIUM BURNING; HIGH-PURITY GE DETECTORS; KEV RANGE; MONTE CARLO METHOD; NUCLEOSYNTHESIS; OXYGEN 16; R MATRIX; STAR EVOLUTION; TRANSITION AMPLITUDES
Descriptors DEC
AMPLITUDES; CALCULATION METHODS; CHARGED-PARTICLE REACTIONS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EVOLUTION; GE SEMICONDUCTOR DETECTORS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL SOLUTIONS; MATRICES; MEASURING INSTRUMENTS; MULTIPOLE TRANSITIONS; NUCLEAR REACTIONS; NUCLEI; NUMERICAL SOLUTION; OXYGEN ISOTOPES; RADIATION DETECTORS; SEMICONDUCTOR DETECTORS; STABLE ISOTOPES; STAR BURNING; SYNTHESIS; TARGETS

Optional Information

Notes
(c) 2002 American Institute of Physics.