论文标题

SN 1987a的LSD响应对中微子爆发的模拟

Simulation of the LSD Response to the Neutrino Burst from SN 1987A

论文作者

Manukovskiy, K. V., Yudin, A. V., Agafonova, N. Yu., Malgin, A. S., Ryazhskaya, O. G.

论文摘要

使用GEANT4代码,我们对SN1987A的中微子爆发的LSD响应进行了全面模拟。根据其中一个模型选择中微子通量参数:标准塌陷模型或旋转超新星爆炸模型。我们表明,根据所选参数,可以获得检测器中所需的脉冲数量,也可以重现其能量谱,但都不会够在一起。在我们的模拟中考虑了中微子辐射与LSD本身以及周围土壤的物质的相互作用。我们还探讨了以下假设:2:52 UT的整个独特LSD信号是由周围花岗岩的中子通量产生的。但是,我们的模拟并未证实这一假设。获得的结果为可能的解释提供了丰富的材料。

Using the Geant4 code, we have performed a full-scale simulation of the LSD response to the neutrino burst from SN1987A. The neutrino flux parameters were chosen according to one of the models: the standard collapse model or the rotational supernova explosion model. We showed that, depending on the chosen parameters, one can either obtain the required number of pulses in the detector or reproduce their energy spectrum, but not both together. The interaction of neutrino radiation both with LSD itself and with the material of the surrounding soil was taken into account in our simulation. We also explored the hypothesis that the entire unique LSD signal at 2:52 UT was produced by neutron fluxes from the surrounding granite. However, this hypothesis was not confirmed by our simulation. The results obtained provide a rich material for possible interpretations.

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