Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data.
Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data.
复制标题
DOI：
10.1103/physrevlett.111.021301
复制
发表时间：
2013-01
影响因子：
8.6
通讯作者：
E. Aprile;M. Alfonsi;K. Arisaka;F. Arneodo;C. Balan;L. Baudis;B. Bauermeister;A. Behrens;P. Beltra
中科院分区：
文献类型：
--
作者：
E. Aprile;M. Alfonsi;K. Arisaka;F. Arneodo;C. Balan;L. Baudis;B. Bauermeister;A. Behrens;P. Beltra
我们利用在意大利Gran Sasso国家实验室运行的XENON100实验的最新数据，对弹性的、自旋依赖的wimp -核子截面提出了新的实验约束。对2011年和2012年期间获得的224.6活days×34 kg暴露的分析显示，由于与129Xe和131Xe核的轴向矢量WIMP相互作用，没有多余的信号。这导致在WIMP质量大于6 GeV/c²时，WIMP中子横截面的最严格上限，在90%的置信水平下，WIMP质量为45 GeV/c²时，最小横截面为3.5×10(-40) cm²。
We present new experimental constraints on the elastic, spin-dependent WIMP-nucleon cross section using recent data from the XENON100 experiment, operated in the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 224.6 live days×34 kg of exposure acquired during 2011 and 2012 revealed no excess signal due to axial-vector WIMP interactions with 129Xe and 131Xe nuclei. This leads to the most stringent upper limits on WIMP-neutron cross sections for WIMP masses above 6 GeV/c², with a minimum cross section of 3.5×10(-40) cm² at a WIMP mass of 45 GeV/c², at 90% confidence level.