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arXiv 1111.6361astro-ph.CO
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定向暗物质探测中的环状特征

Ring-like features in directional dark matter detection

Nassim Bozorgnia, Graciela B. Gelmini, Paolo Gondolo

摘要:

我们讨论了一种新的暗物质签名相关的弱相互作用大质量粒子(WIMPs)的定向检测。对于足够重的WIMP和足够低的反冲能量,反冲率的最大值不是在平均WIMP到达方向的方向上,而是在围绕它的一个环中,该环的角半径随着WIMP质量的增加而增加,并且在非常低的能量下可以接近90度。相对于探测器,WIMP速度色散较小,WIMP平均速度较大时,环更容易探测。原则上,环可以用作WIMP质量范围的额外指示。

英文摘要:

We discuss a novel dark matter signature relevant for directional detection of Weakly Interacting Massive Particles (WIMPs). For heavy enough WIMPs and low enough recoil energies, the maximum of the recoil rate is not in the direction of the average WIMP arrival direction but in a ring around it at an angular radius that increases with the WIMP mass and can approach 90 degrees at very low energies. The ring is easier to detect for smaller WIMP velocity dispersion and larger average WIMP velocities relative to the detector. In principle the ring could be used as an additional indication of the WIMP mass range.

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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