EPJ Web of Conferences (Jan 2022)

Direct Measurement of Carbon Fusion at Astrophysical Energies with Gamma-Particle Coincidences

  • Heine M.,
  • Fruet G.,
  • Courtin S.,
  • Jenkins D.G.,
  • Adsley P.,
  • Brown A.,
  • Canavan R.,
  • Catford W.N.,
  • Charon E.,
  • Curien D.,
  • Della Negra S.,
  • Duprat J.,
  • Hammache F.,
  • Lesrel J.,
  • Lotay G.,
  • Meyer A.,
  • Monpribat E.,
  • Montanari D.,
  • Morris L.,
  • Moukaddam M.,
  • Nippert J.,
  • Podolyák Zs.,
  • Regan P.H.,
  • Ribaud I.,
  • Richer M.,
  • Rudigier M.,
  • Shearman R.,
  • de Séréville N.,
  • Stodel C.

DOI
https://doi.org/10.1051/epjconf/202226001004
Journal volume & issue
Vol. 260
p. 01004

Abstract

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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.