Accelerator probes for new stable quarks

Details Accelerator probes for new stable quarks Accelerator probes for new stable quarks

2011-11-15

arxiv.org/abs/1111.3578v1

Physics

High Energy Physics

High Energy Physics - Experiment

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

Scientific paper

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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