| Original Articles |
|
|
|
|
Statistical Significance of Non-Reproducibility of Cross Sections in Dissipative Reactions |
| WANG Qi1;DONG Yu-Chuan1,2;LI Song-Lin1;TIAN Wen-Dong1;LI Zhi-Chang3;LU Xiu-Qin3;ZHAO Kui3;FU Chang-Bo3;LIU Jian-Cheng3;JIANG Hua3;HU Gui-Qing3
|
| 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Graduate School, Chinese Academy of Sciences, Beijing 100039
3China Institute of Atomic Energy, Beijing 102413
|
|
| Cite this article: |
|
WANG Qi, DONG Yu-Chuan, LI Song-Lin et al 2003 Chin. Phys. Lett. 20 2144-2147 |
|
|
|
|
Abstract Two independent excitation function measurements have been performed in the reaction system of 19F+93Nb using two target foils of the same nominal thickness. We measured the dissipative reaction products at incident energies of 102 through 108 MeV with a step of 250 keV. The variance of energy autocorrelation functions of the reaction products was found to be three times of that originated from the randomized counting rates. By analysing the probability distributions of the deviations in the measured cross sections, we found that about 20% of all the deviations exceeds three standard deviations. This indicates that the non-reproducibility of the cross sections in the two independent measurements is of a statistical significance but not originated from randomized fluctuation of counting rates.
|
| Keywords:
25.70.Lm
24.60.-k
|
|
|
Published: 01 December 2003
|
|
| PACS: |
25.70.Lm
|
(Strongly damped collisions)
|
| |
24.60.-k
|
(Statistical theory and fluctuations)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
