Report
$^{11}$B states above the $\alpha$-decay threshold studied via $^{10}$B$(d,p){}^{11}$B
العنوان: | $^{11}$B states above the $\alpha$-decay threshold studied via $^{10}$B$(d,p){}^{11}$B |
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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 |
الوصف غير متاح. |