Study of the Isomeric State in \(^{16}\)N Using the \(^{16}\)N\(^{g,m}\)(\(d\),\(^3\)He) Reaction

• Published in: arXiv.org
• Main Authors: Tang, T L, Hoffman, C R, Kay, B P, Tolstukhin, I A, Almaraz-Calderon, S, Asher, B W, Avila, M L, Ayyad, Y, Brown, K W, Bazin, D, Chen, J, Chipps, K A, Copp, P A, Hall, M, Jayatissa, H, Ong, H J, Santiago-Gonzalez, D, Sharp, D K, Song, J, Stolze, S, Wilson, G L, J Wu
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 21.07.2022
• Subjects: Born approximation; Inverse kinematics; Mathematical analysis
• DOI: 10.48550/arxiv.2112.10742

The isomeric state of \(^{16}\)N was studied using the \(^{16}\)N\(^{g,m}\)(\(d\),\(^3\)He)~proton-removal reactions at \mbox{11.8~MeV/\(u\)} in inverse kinematics. The \(^{16}\)N beam, of which 24% was in the isomeric state, was produced using the ATLAS in-fight facility and delivered to the HELIOS spectrometer, which was used to analyze the \(^{3}\)He ions from the (\(d\),\(^{3}\)He) reactions. The simultaneous measurement of reactions on both the ground and isomeric states, reduced the systematic uncertainties from the experiment and in the analysis. A direct and reliable comparison of the relative spectroscopic factors was made based on a Distorted-Wave Born Approximation approach. The experimental results suggest that the isomeric state of \(^{16}\)N is an excited neutron-halo state. The results can be understood through calculations using a Woods-Saxon potential model, which captures the effects of weak-binding.