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arXiv 0710.4206nucl-ex
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γ谱法测量~(25)Mg(p; γ)~(26)Al共振强度

Measurement of 25Mg(p; gamma)26Al resonance strengths via gamma spectrometry

A. Formicola, A. Best, G. Imbriani, M. Junker, D. Bemmerer, R. Bonetti, C. Broggini, A. Caciolli, F. Confortola, P. Corvisiero, H. Costantini, Z. Elekes, Zs Ful… 展开作者

A. Formicola, A. Best, G. Imbriani, M. Junker, D. Bemmerer, R. Bonetti, C. Broggini, A. Caciolli, F. Confortola, P. Corvisiero, H. Costantini, Z. Elekes, Zs Fulop, G. Gervino, A. Guglielmetti, Gy Gyurky, C. Gustavino, A. Lemut, B. Limata, M. Marta, C. Mazzocchi, R. Menegazzo, P. Prati, V. Roca, C. Rolfs, C. Rossi Alvarez, E. Somorjai, O. Straniero, F. Strieder, F. Terrasi, H. P. Trautvetter

摘要:

COMPTEL仪器完成了银河系中1.809 MeV光子的第一次测绘,引发了人们对确定星际26 Al来源的极大兴趣。与观测结果相比,预测的26 Al太低,为了更好地理解25 Mg(p; γ)26 Al反应的更准确速率,需要。25Mg(p;利用串列加速器和4piNaI探测器在波鸿鲁尔大学研究了Er= 745; 418; 374; 304 keV共振下的γ)26 Al反应。此外,Er = 189 keV的共振已经在Gran Sasso的Nazionali实验室深处测量,利用宇宙背景的强烈抑制。用400 kV LUNA加速器和HPGe探测器研究了这种低共振。将报告共振强度的初步结果。

英文摘要:

The COMPTEL instrument performed the first mapping of the 1.809 MeV photons in the Galaxy, triggering considerable interest in determing the sources of interstellar 26Al. The predicted 26Al is too low compared to the observation, for a better understanding more accurate rates for the 25Mg(p; gamma)26Al reaction are required. The 25Mg(p;gamma)26Al reaction has been investigated at the resonances at Er= 745; 418; 374; 304 keV at Ruhr-Universitat-Bochum using a Tandem accelerator and a 4piNaI detector. In addition the resonance at Er = 189 keV has been measured deep underground laboratory at Laboratori Nazionali del Gran Sasso, exploiting the strong suppression of cosmic background. This low resonance has been studied with the 400 kV LUNA accelerator and a HPGe detector. The preliminary results of the resonance strengths will be reported.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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