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arXiv 1010.4140nucl-exnucl-th
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研究$\bm{p+^6}$ Li $\bm{\toη+^7}$ Be反应11.3 MeV高于阈值

Study of the $\bm{p+^6}$Li$\bm{\toη+^7}$Be reaction 11.3 MeV above threshold

A. Budzanowski, A. Chatterjee, P. Hawranek, R. Jahn, V. Jha, K. Kilian, S. Kliczewski, Da. Kirillov, Di. Kirillov, D. Kolev, M. Kravcikova, M. Lesiak, J. Lieb, … 展开作者

A. Budzanowski, A. Chatterjee, P. Hawranek, R. Jahn, V. Jha, K. Kilian, S. Kliczewski, Da. Kirillov, Di. Kirillov, D. Kolev, M. Kravcikova, M. Lesiak, J. Lieb, H. Machner, A. Magiera, R. Maier, G. Martinska, N. Piskunov, D. Protić, J. Ritman, P. von Rossen, B. J. Roy, I. Sitnik, R. Siudak, R. Tsenov, J. Urban, G. Vankova

摘要:

通过检测反冲$^7$ Be核,在超过阈值11.28 MeV的过量能量下测量反应$p+^6\text{Li}\toη+^7\text{Be}$的截面。一套专用的焦平面探测器被建造用于磁谱仪Big Karl,并被用于识别和四个动量测量的$^7$ Be。测量了$\frac{dσ}{dΩ}=(0.69\pm{0.20}\text{(stat.)}\pm 0.20\text{(syst.)})\text{nb/sr}$的基态加上1/2 $^-$的微分截面。将结果与模型计算结果进行比较。

英文摘要:

The cross section for the reaction $p+^6\text{Li}\toη+^7\text{Be}$ was measured at an excess energy of 11.28 MeV above threshold by detecting the recoiling $^7$Be nuclei. A dedicated set of focal plane detectors was built for the magnetic spectrograph Big Karl and was used for identification and four momentum measurement of the $^7$Be. A differential cross section of $\frac{dσ}{dΩ}=(0.69\pm{0.20}\text{(stat.)}\pm 0.20\text{(syst.)})\text{nb/sr}$ for the ground state plus the 1/2$^-$ was measured. The result is compared to model calculations.

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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