Limits on the spin-dependent WIMP-nucleon cross sections from the first science run of the ZEPLIN-III experiment.

Limits on the spin-dependent WIMP-nucleon cross sections from the first science run of the ZEPLIN-III experiment.
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ZEPLIN-III 实验第一次科学运行对自旋相关 WIMP 核子横截面的限制。

DOI:
10.1103/physrevlett.103.151302
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发表时间:
2009
影响因子:
8.6
通讯作者:
Lebedenko VN
Lebedenko VN
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Lebedenko VN

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我们提出了新的实验约束的WIMP核子自旋相关的弹性截面使用的数据从第一次科学运行的ZEPLIN-III,两相氙实验寻找银河系暗物质弱相互作用的大质量粒子的基础上在博尔比矿。基准曝光的分析使我们能够把一个90%的置信上限的纯WIMP中子截面的WIMP质量。最近的核自旋结构的计算的基础上波恩电荷相关的核子核子势用于奇中子同位素和。这表明氙靶对自旋相关的WIMP-质子相互作用的灵敏度可能远低于以前的计算所暗示的灵敏度,而WIMP-中子灵敏度仅受因子的影响。
We present new experimental constraints on the WIMP-nucleon spin-dependent elastic cross sections using data from the first science run of ZEPLIN-III, a two-phase xenon experiment searching for galactic dark matter weakly interacting massive particles based at the Boulby mine. Analysis offiducial exposure allow us to place a 90%-confidence upper limit on the pure WIMP-neutron cross section ofatWIMP mass. Recent calculations of the nuclear spin structure based on the Bonn charge-dependent nucleon-nucleon potential were used for the odd-neutron isotopesand. These indicate that the sensitivity of xenon targets to the spin-dependent WIMP-proton interaction could be much lower than implied by previous calculations, whereas the WIMP-neutron sensitivity is impaired only by a factor of.
DOI: 10.1103/physrevd.70.083523
发表时间: 2004-04
影响因子: 6.8
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