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Proton capture on 34S in the astrophysical energy regime of O-Ne novae

Journal Article · · Physical Review C
 [1];  [2];  [3];  [4];  [2];  [5];  [2];  [2];  [6];  [2];  [7];  [8];  [9];  [2];  [8];  [5];  [5];  [10];  [7];  [5] more »;  [2];  [11] « less
  1. Colorado School of Mines, Golden, CO (United States); Colorado School of Mines
  2. TRIUMF, Vancouver, BC (Canada)
  3. TRIUMF, Vancouver, BC (Canada); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. TRIUMF, Vancouver, BC (Canada); Univ. of York (United Kingdom)
  5. McMaster Univ., Hamilton, ON (Canada)
  6. Michigan State Univ., East Lansing, MI (United States)
  7. Ohio Univ., Athens, OH (United States)
  8. Colorado School of Mines, Golden, CO (United States)
  9. Univ. of Northern British Columbia, Prince George, BC (Canada)
  10. Univ. of Notre Dame, IN (United States)
  11. Univ. of Edinburgh, Scotland (United Kingdom)
Nuclear reaction sensitivity studies have shown that the final isotopic abundance of O-Ne nova nucleosynthesis is dependent on the 34S(p,γ)35Cl reaction at astrophysical energies corresponding to peak nova burning temperatures of 0.1–0.4 GK. Isotopic ratios of the S, Cl, and Ar products are all used in various methods of cosmochemical analysis of presolar meteoritic grains. Due to the lack of direct experimental data, the 34S+p reaction rate has been estimated using statistical modeling or information from indirect nucleon transfer experiments. In order to provide direct reaction information, here the resonance strengths of several low energy resonances, Ec.m. = 272–495 keV, in the 34S(p,γ)35Cl reaction were measured for the first time in inverse kinematics using the DRAGON recoil separator located at TRIUMF, Canada’s Particle Accelerator Centre in Vancouver.
Research Organization:
Colorado School of Mines, Golden, CO (United States)
Sponsoring Organization:
National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC); USDOE Office of Science (SC)
Contributing Organization:
DRAGON Collaboration
Grant/Contract Number:
FG02-93ER40789
OSTI ID:
1830733
Journal Information:
Physical Review C, Journal Name: Physical Review C Journal Issue: 5 Vol. 103; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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