arXiv 1111.35782011-11-15hep-ex

新稳定夸克的加速器探测器

Accelerator probes for new stable quarks

Konstantin M. Belostky, Maxim Yu. Khlopov, Konstantin I. Shibaev

备注：: to be published in Proceedings of XIV Bled Workshop "What comes beyond the Standard model?" (Bled, Slovenia)

摘要：

宇宙中的非重子暗物质可以由新的稳定的双带电粒子$O^{--}$组成，通过普通的库仑相互作用与重中性O-氦（OHe）“原子”中的原始氦结合在一起。氦氧暗原子可以扮演特定的核相互作用暗物质的角色，为寻找暗物质的难题提供解决方案。复合暗物质方案的成功发展呼吁对暗原子带电成分的实验研究。如果$O^{--}$是一个“重夸克团”$\bar U \bar U \bar U$，它的生产在加速器上几乎是不可能的，重夸克搜索的策略减少到搜索重稳定强子，只包含单个重夸克（或反夸克）。估计的生产截面的这种粒子在大型强子对撞机和新的稳定夸克的实验签名概述。

英文摘要：

The nonbaryonic dark matter of the Universe can consist of new stable double charged particles $O^{--}$, bound with primordial helium in heavy neutral O-helium (OHe)"atoms" by ordinary Coulomb interaction. O-helium dark atoms can play the role of specific nuclear interacting dark matter and provide solution for the puzzles of dark matter searches. The successful development of composite dark matter scenarios appeals to experimental search for the charged constituents of dark atoms. If $O^{--}$ is a "heavy quark cluster" $\bar U \bar U \bar U$, its production at accelerators is virtually impossible and the strategy of heavy quark search is reduced to search for heavy stable hadrons, containing only single heavy quark (or antiquark). Estimates of production cross section of such particles at LHC are presented and the experimental signatures for new stable quarks are outlined.

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