First spin-parity constraint of the 306 keV resonance in ${}^{35}\mathrm{Cl}$ for nova nucleosynthesis

Journal Article · Fri Apr 28 00:00:00 EDT 2017 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.95.045808· OSTI ID:1354658

Chipps, K. A. ^[1]; Pain, S. D. ^[1]; Kozub, R. L. ^[2]; Bardayan, D. W. ^[1]; Cizewski, J. A. ^[3]; Chae, K. Y. ^[4]; Liang, J. F. ^[1]; Matei, C. ^[5]; Moazen, B. H. ^[4]; Nesaraja, C. D. ^[1]; O'Malley, P. D. ^[3]; Peters, W. A. ^[5]; Pittman, S. T. ^[4]; Schmitt, K. T. ^[4]; Smith, M. S. ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Physics Division
2. Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Physics
3. Rutgers Univ., New Brunswick, NJ (United States). Dept. of Physics and Astronomy
4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
5. Oak Ridge Associated Univ., Oak Ridge, TN (United States)

Something of particular interest in astrophysics is the ³⁴ S ( p , γ ) ³⁵ Cl reaction, which serves as a stepping stone in thermonuclear runaway reaction chains during a nova explosion. Although the isotopes involved are all stable, the reaction rate of this significant step is not well known, due to a lack of experimental spectroscopic information on states within the Gamow window above the proton separation threshold of ³⁵ Cl . Furthermore, measurements of level spins and parities provide input for the calculation of resonance strengths, which ultimately determine the astrophysical reaction rate of the ³⁴ S ( p , γ ) ³⁵ Cl proton capture reaction. By performing the ³⁷ Cl ( p , t ) ³⁵ Cl reaction in normal kinematics at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory, we have conducted a study of the region of astrophysical interest in ³⁵ Cl , and have made the first-ever constraint on the spin and parity assignment for a level at 6677 ± 15 keV ( E _r = 306 keV), inside the Gamow window for novae.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
• Grant/Contract Number: AC05-00OR22725; FG52-08NA28552; FG02-96ER40955; FG02-96ER40983
• OSTI ID: 1354658
• Alternate ID(s): OSTI ID: 1353507
• Journal Information: Physical Review C, Vol. 95, Issue 4; ISSN 2469-9985
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS