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arXiv 1003.2987astro-ph.COhep-ex
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II阶段SIMPLE暗物质搜寻的初步结果

First Results of the Phase II SIMPLE Dark Matter Search

M. Felizardo, T. Morlat, A. C. Fernandes, TA Girard, J. G. Marques, A. R. Ramos, M. Auguste, D. Boyer, A. Cavaillou, C. Sudre, J. Poupeney, R. F. Payne, H. S. Miley, J. Puibasset

摘要:

我们报告的14.1 kgd测量结果与15个过热液滴探测器的总有效质量0.208公斤,包括第一阶段的30 kgd第二阶段实验。结合中子-自旋灵敏的XENON 10实验结果,这些结果在XENON,KIMS和PICASSO定义的相空间的50%以前允许的范围内,得到了在M_W = 50 GeV/c ~ 2的弱相互作用大质量粒子-核相互作用的自旋相关扇区上|a_p| < 0.32的极限。在自旋无关区,在M_W = 45 GeV/c ~ 2处得到了2.3 × 10 ~(-5)pb的极限。

英文摘要:

We report results of a 14.1 kgd measurement with 15 superheated droplet detectors of total active mass 0.208 kg, comprising the first stage of a 30 kgd Phase II experiment. In combination with the results of the neutron-spin sensitive XENON10 experiment, these results yield a limit of |a_p| < 0.32 for M_W = 50 GeV/c2 on the spin-dependent sector of weakly interacting massive particle-nucleus interactions with a 50% reduction in the previously allowed region of the phase space formerly defined by XENON, KIMS and PICASSO. In the spin-independent sector, a limit of 2.3x10-5 pb at M_W = 45 GeV/c2 is obtained.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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