| DAMA暗物质实验本底问题的研究 |
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| 引用本文： | 盛祥东,戴长江,何会林.DAMA暗物质实验本底问题的研究[J].中国物理 C,2003,27(9):779-783. |
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| 作者姓名： | 盛祥东 戴长江 何会林 |
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| 作者单位： | 中国科学院高能物理研究所，宇宙线与高能天体物理重点实验室，中国科学院高能物理研究所，宇宙线与高能天体物理重点实验室，中国科学院高能物理研究所，宇宙线与高能天体物理重点实验室 北京100039，北京100039，北京100039 |
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| 摘 要： | 文章介绍中意合作DAMA组100kgNaI(Tl)晶体阵列实验结果,重点探讨了可能影响探测实验结果的多种因素.通过蒙特卡罗模拟计算,北京组得到了探测晶体阵列内部的放射性杂质的本底贡献,它们与本底的实验结果一致.另外,模拟计算结果表明,快中子、太阳中微子等对本底的贡献很小,这样也排除了由它们引起DAMA实验结果的可能性.
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| 关 键 词： | 弱作用重粒子 太阳中微子 核衰变 |
| 收稿时间： | 2003-3-14 |
Studies on the Backgrounds of DAMA Experiments |
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| SHENG Xiang-Dong DAI Chang-Jiang HE Hui-Lin.Studies on the Backgrounds of DAMA Experiments[J].High Energy Physics and Nuclear Physics,2003,27(9):779-783. |
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| Authors: | SHENG Xiang-Dong DAI Chang-Jiang HE Hui-Lin |
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| Institution: | SHENG Xiang-Dong DAI Chang-Jiang HE Hui-Lin 1) |
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| Abstract: | Some results have been introduced on China-Italy DAMA cooperation--100kg NaI(Tl) crystal set-up experiments. There are lots of background problems need to be studied carefully, which would affect the results of DAMA experiments. Here, the radiation backgrounds in 100kg NaI(Tl) set-up have been studied by Beijing Group, and the Monte-Carlo simulation results are in good coincidence with the measurement of DAMA experiments. In addition, the contribution coming from fast neutrons' or solar neutrinos' interactions have been obtained through the simulation, which made very small effects on the experiments. |
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| Keywords: | weakly interacting massive particles solar neutrinos nuclear decay |
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