Lowest excited states of {sup 13}O
- Institute for Structure and Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
- Physics Department, Florida State University, Tallahassee, Florida 32306 (United States)
- Texas A and M University, College Station, Texas 77843 (United States)
- Physics Department, University of Michigan, Ann Arbor, Michigan 48109 (United States)
An excitation function for resonance elastic scattering of p+{sup 12}N was measured in the center of mass energy range of 0.8-2.7 MeV. Measurements were performed using inverse kinematics and the thick-target techniques. The data were analyzed in the framework of the R-matrix formalism. A definitive spin and parity assignment was possible for the first excited state of {sup 13}O at an excitation energy of 2.69 MeV as J{sup {pi}}=(1/2){sup +}. An indication of the presence of a new level in {sup 13}O at an excitation energy of 3.29 MeV with tentative spin-parity assignment J{sup {pi}}=(1/2){sup -} or (3/2){sup -} was obtained. We evaluate the impact of this measurement on the reaction rate of {sup 12}N(p,{gamma}){sup 13}O for nucleosynthesis in low-metallicity stars.
- OSTI ID:
- 20991020
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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