학술논문

Direct Measurement of Carbon Fusion at Astrophysical Energies with Gamma-Particle Coincidences.
Document Type
Article
Source
EPJ Web of Conferences. 2/24/2022, Vol. 260, p1-4. 4p.
Subject
*ASTROPHYSICS
*GAMMA rays
*RESONANCE
*ASTRODYNAMICS
*MULTIPLICITY of nuclear particles
Language
ISSN
2101-6275
Abstract
We present 12C+12C direct fusion measurements with STELLA UKFATIMA, that reach into the region of astrophysics interest relevant to massive stars (M⊙ ≈ 25) using self-supporting thin rotating carbon foils [1]. We demonstrate that detecting gammas and light charged particles in coincidence with nanosecond timing is key for effective background reduction achieving reliable measurements in the sub-nanobarn range. We give details about core developments of the detection apparatus as well as the coincidence-analysis procedure of low count statistics. The present data largely follows the phenomenological hindrance interpolation and shows indication for resonant behaviour at the lowest energy explored. [ABSTRACT FROM AUTHOR]