halo section 中文意思是什麼
halo section
解釋
光圈分區-
Considering the diffuseness of the n - n scattering in the forward direction results in an increased reaction cross section. and also the angular distributions calculated in the glauber theory including these two corrections are in good agreement with the experiment data. in the investigation of the halo nucleus reaction with a loosely bound structure, one has to consider the strong spatial correlations among its constituents
考慮了低動量轉移的核子?核子兩體散射在朝前方向上的彌散，使計算得到的反應截面增大，而且我們從彈性角分佈的分析中得到考慮了有限力程修正的效應無論是在峰的位置還是角分佈的絕對值都能更好地符合實驗。 -
Since in the few - body glauber theory the core and valence nucleons of a halo nucleus are treated separately, the obtained expressions of the reaction cross section, the nucleon removal cross section and the momentum distribution are all involved in multidimensional integrations
由於在少體近似glauber模型中暈核被分成核芯和暈核子來處理，所以得到的暈中國原子能科學研究院博士學位論文核散射反應截面、核子逃逸截面以及動量分佈的計算公式均包含高重積分。 -
Therefore we could carry out numerical calculations and obtain the reaction cross section, the nucleon removal cross section and the momentum distribution in the scattering of a halo nucleus with any types of density distributions. we compare the reaction cross sections calculated in the few - body glauber theory and the optical - limit glauber theory
進一步對27p 、 28p反應截面的研究分析表明，考慮核芯2751的增大可以很好解釋實驗測量得到28p反應截面的增大，而要解釋27p反應截面的異常增大，需要同時考慮核芯2 「 si增大和具有非常彌散空間分佈的2s ， ， :態暈核子。 -
The results show that the contribution of direct capture is primary in the interested temperature range of astrophysics. toward the 12c ( n, y ) 13c reaction, our calculations are good agreement with a recent experiment at low energy. a obvious enhancement of the cross section of 12c ( n, y ) 13c first excited state has been found, and it supports that the first excited state 1 / 2 + of 13c is a neutron halo state which has been found experimentally by our department group
對于第一個核反應，我們計算了直接俘獲過程以及兩個共振態的俘獲截面和總截面，我們的計算結果顯示，在天體感興趣的溫度范圍內，直接俘獲過程對總截面的貢獻是主要的；對于第二個反應，我們的計算結果與已有的實驗結果符合的較好，其中~ （ 12 ） c （ n ， ） ~ （ 13 ） c的第一激發態計算結果顯示出截面有明顯增大，這從理論上支持了我所關于~ （ 13 ） c第一激發態具暈結構的實驗發現，這是國際上第一次在激發態中發現暈結構。
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