$^{11}$B states above the $\alpha$-decay threshold studied via $^{10}$B$(d,p){}^{11}$B

التفاصيل البيبلوغرافية
العنوان: $^{11}$B states above the $\alpha$-decay threshold studied via $^{10}$B$(d,p){}^{11}$B
المؤلفون: Kuchera, A. N., Ryan, G., Selby, G., Snider, D., Anderson, S., Almaraz-Calderon, S., Baby, L. T., Brown, B. A., Hanselman, K., Lopez-Saavedra, E., Macon, K. T., McCann, G. W., Kemper, K. W., Spieker, M., Wiedenhöver, I.
سنة النشر: 2024
المجموعة: Nuclear Experiment
Nuclear Theory
مصطلحات موضوعية: Nuclear Experiment, Nuclear Theory
الوصف: The resonance region of $^{11}$B covering excitation energies from 8.4 MeV to 13.6 MeV was investigated with the $(d,p)$ reaction performed on an enriched $^{10}$B target at the Florida State University Super-Enge Split-Pole Spectrograph of the John D. Fox Superconducting Linear Accelerator Laboratory. Complementary measurements were performed with a target enriched in $^{11}$B to identify possible $^{12}$B contaminants in the $(d,p)$ reaction. Four strongly populated $^{11}$B states were observed above the $\alpha$-decay threshold. Angular distributions were measured and compared to DWBA calculations to extract angular momentum transfers and $^{10}\mathrm{B}\left(3^+\right)+n$ spectroscopic factors. The recently observed and heavily discussed resonance at 11.4 MeV in $^{11}$B was not observed in this work. This result is consistent with the interpretation that it is predominantly a $^{10}\mathrm{Be}\left(0^+\right)+p$ resonance with a possible additional $^{7}\mathrm{Li}+\alpha$ contribution. The predicted $^{10}\mathrm{B}\left(3^+\right)+n$ resonance at 11.6 MeV, analogous to the 11.4-MeV proton resonance, was not observed either. Upper limits for the $^{10}\mathrm{B}\left(3^+\right)+n$ spectroscopic factors of the 11.4-MeV and 11.6-MeV states were determined. In addition, supporting configuration interaction shell model calculations with the effective WBP interaction are presented.
Comment: 7 pages, 3 figures, accepted for publication in Physical Review C as regular article
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2411.09831
رقم الانضمام: edsarx.2411.09831
قاعدة البيانات: arXiv