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Title: Determination of astrophysical thermonuclear rates with a bubble chamber: The {sup 12}C(αγ){sup 16}O reaction case

The {sup 12}C(αγ){sup 16}O reaction rate is considered one of the most important unknown parameters in the physics of structure and evolution of massive stars. While extensive experimental campaigns have been performed trying to improve the quality of the measurements, the rate still holds very large uncertainties. Here we discuss a new experimantal scheme to measure the cross section of this reaction with a bubble chamber and a bremsstrahlung beam. The main advantage of the technique is a gain in the luminosity of several orders of magnitude when compared to other ongoing experiments.
Authors:
; ; ;  [1] ; ; ; ;  [2] ; ;  [3] ;  [4]
  1. Argonne National Laboratory, Argonne IL 60439 (United States)
  2. Jefferson Lab, Newport News, VA 23606 (United States)
  3. University of Chicago, Chicago, IL 60637 (United States)
  4. Fermilab, Batavia, IL 60510 (United States)
Publication Date:
OSTI Identifier:
22280690
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1563; Journal Issue: 1; Conference: Workshop to explore physics opportunities with intense, polarized electron beams at 50-300 MeV, Cambridge, MA (United States), 14-16 Mar 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ALPHA REACTIONS; ASTROPHYSICS; BREMSSTRAHLUNG; BUBBLE CHAMBERS; CARBON 12 TARGET; COMPARATIVE EVALUATIONS; CROSS SECTIONS; GAIN; GIANT STARS; NUCLEAR REACTION KINETICS; OXYGEN 16; PHOTON BEAMS; STAR EVOLUTION