Search for bosonic super-WIMP interactions with the XENON100 experiment
Search for bosonic super-WIMP interactions with the XENON100 experiment
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DOI：
10.1103/physrevd.96.122002
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发表时间：
2017-09
影响因子：
5
通讯作者：
E. Aprile;J. Aalbers;F. Agostini;M. Alfonsi;L. Althueser;F. Amaro;M. Anthony;F. Arneodo;P. Barr
中科院分区：
文献类型：
--
作者：
E. Aprile;J. Aalbers;F. Agostini;M. Alfonsi;L. Althueser;F. Amaro;M. Anthony;F. Arneodo;P. Barr
我们给出了用XENON100实验寻找矢量和赝标玻色子超弱相互作用质量粒子(WIMP)的结果，这些粒子是在kev尺度上具有质量的暗物质候选者。XENON100是一个双相氙气时间投影室，在Gran Sasso实验室运行。对暴露在224.6个活体天数$\ifmmode\Times\Else\TextTimes\FI{}34\Text{}\Text{}\mathrm{kg}$的数据进行的轮廓似然分析显示，没有证据表明信号高于预期本底。因此，我们在$(8--125)\Text{}\Text{}\mathm{kev}/{\mathm{c}}^{2}$质量范围内获得新的和严格的上限，对于伪标量，不包括耦合常数为${g}_{ae}g3\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}13}$的电子的耦合；对于矢量超WIMP，不包括耦合常数为${\ensuremath{\alpha}}^{\ensuremath{‘}}/\ensuremath{\alpha}g2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}28}$的电子。这些极限是在假设超WIMP构成我们银河系所有暗物质的前提下得出的。
We present results of searches for vector and pseudoscalar bosonic super-weakly interacting massive particles (WIMPs), which are dark matter candidates with masses at the keV-scale, with the XENON100 experiment. XENON100 is a dual-phase xenon time projection chamber operated at the Laboratori Nazionali del Gran Sasso. A profile likelihood analysis of data with an exposure of 224.6 live days $\ifmmode\times\else\texttimes\fi{}34\text{ }\text{ }\mathrm{kg}$ showed no evidence for a signal above the expected background. We thus obtain new and stringent upper limits in the $(8--125)\text{ }\text{ }\mathrm{keV}/{\mathrm{c}}^{2}$ mass range, excluding couplings to electrons with coupling constants of ${g}_{ae}g3\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}13}$ for pseudo-scalar and ${\ensuremath{\alpha}}^{\ensuremath{'}}/\ensuremath{\alpha}g2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}28}$ for vector super-WIMPs, respectively. These limits are derived under the assumption that super-WIMPs constitute all of the dark matter in our galaxy.