Direct studies of low-energy resonances in 31P(p,α) 28Si and 35Cl(p,α)32S

Moazen, Brian; Matei, Catalin; Bardayan, Daniel W.; Blackmon Jr, Jeff; Chae, K. Y.; Chipps, K.; Hatarik, Robert; Jones, K. L.; Kozub, R. L.; Matos, M.; Nesaraja, Caroline D.; O'Malley, Patrick; Pain, S. D.; Pelham, T.; Pittman, S. T.; Smith, Michael Scott

doi:10.1140/epja/i2011-11066-7

Title: Direct studies of low-energy resonances in 31P(p,α) 28Si and 35Cl(p,α)32S

Journal Article · Sun May 01 00:00:00 EDT 2011 · European Physical Journal. A

DOI:https://doi.org/10.1140/epja/i2011-11066-7· OSTI ID:1019326

Moazen, Brian ^[1]; Matei, Catalin ^[2]; Bardayan, Daniel W. ^[3]; Blackmon Jr, Jeff ^[3]; Chae, K. Y. ^[1]; Chipps, K. ^[4]; Hatarik, Robert ^[5]; Jones, K. L. ^[1]; Kozub, R. L. ^[6]; Matos, M. ^[7];

^[3]; O'Malley, Patrick ^[5]; Pain, S. D. ^[5]; Pelham, T. ^[8]; Pittman, S. T. ^[1];

^[3]

University of Tennessee, Knoxville (UTK)
Oak Ridge Associated Universities (ORAU)
ORNL
Colorado School of Mines, Golden
Rutgers University
Tennessee Technological University (TTU)
Louisiana State University
University of Surrey, UK

Low-energy resonances in 31P(p,a)28Si and 35Cl(p,a)32S were studied directly in order to gain abetter understanding of reaction cycling in the Si-Ar region in novae, supernovae, and X-ray bursts.Resonance strengths at Ec:m = 600 and 622 keV in 31P(p,a)28Si were measured as well as the Ec:m:= 611 keV resonance in 35Cl(p,a)32S, the lowest energy that any resonance in this reaction has beenobserved. The strengths of these resonances were found to be lower than previously determinedthrough indirect methods, resulting in weak cycling in the Si-Ar region.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1019326

Journal Information:: European Physical Journal. A, Vol. 47, Issue 5; ISSN 1434-6001

Country of Publication:: United States

Language:: English

References (11)

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