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寻找BATSEγ暴的TeV能区伴随γ暴 总被引:1,自引:1,他引:0
利用西藏ASγ实验三期阵列的重建数据,对25个BATSEγ暴的TeV能区伴随γ暴进行了符合寻找。在BATSEγ暴方向的90%误差范围内,找出在给定的小天区和时间间隔内出现的显著性较高的TeV事例团,并采用“等天顶角方法”来估计背景。发现少量事例团对背景有明显超出,考虑试验次数后,其超出还不足以认定为γ暴。通过Monte Carlo模拟给出了95%置信水平下流强上限的估计值为7.1×10^-9photons/(cm^2·s)。Searching for TeV burst-like events coincident with the BATSE GRBs data was made by using the ASγ (Tibet-Ⅲ) data. In the period we analysed, there were 25 BATSE GRBs in the field view of Tibet. A search region was defined by the BATSE 90% confidence level positioning error. A GRB candidate was chosen as a shower cluster appearing in a given small sky window and a given time interval. An equi-zenith-angle method was used to estimate the background. No significant TeV GRBs were detected. The flux upper limit at the 95% confidence level was estimated to be about 7.1×10^-9 γ(cm^2·s) by Monte Carlo simulation. 相似文献
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最近在德国汉堡发现了一种轻子与夸克相结合的新物质--轻子夸克。本文根据焦--宫亚夸克模型及亚夸克对的产生与重组合机制,探讨了可能存在的轻子型夸克态。 相似文献
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夸克-轻子的形变空间可解释为旋量空间,如果夸克-轻子因结构发生形变,其电荷量子数、旋量量子数及超荷量子数可用振动量子数加以表示。 相似文献
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从亚夸克物理中允许存在的编外粒子出发,探索了可能存在的双夸克态,双轻子态以及轻子夸克等新物质态,给出了它们的结构性和SU(3)对称表示。 相似文献
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