Lowest excited states ofO13

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.