7 pages, latex, one eps figure incorporated, uses special macros Expanded and updated version of talk presented by D.V.N. at Dark Matter 2008, 8th UCLA Symposium on Sources and Detection of Dark Matter and Dark Energy in the Universe, Marriott Hotel, Marina del Rey, California (U.S.A.), February 20-22 2008
We discuss the phenomenology of Supercritical String Cosmology (SSC) in the context of Dark Matter constraints on supersymmetric particle physics models at LHC. We also link our results with recent findings of the MAGIC, H.E.S.S. and Fermi Telescopes on delayed arrival of highly energetic photons from the distant Galaxies and GRBs. The link is provided by a concrete model of space-time foam in (supercritical) string theory, involving space-time defects and their interaction with matter in a brane world scenario.
Extraction of $Z'$ Coupling Data From $Z' \to jj$ at the LHC and SSC
最近的一项分析表明,在SSC处可以通过衰变$Z' \to jj$提取关于$Z'$耦合的信息。这种技术被发现是有用的一些扩展的电弱模型提供的$Z'$是相对较轻的。在本文中,我们将这个过程推广到LHC和质量大于1 TeV的$Z'$。(投稿于{ \it Proceedings of the Workshop on Physics at Current Accelerators and the Supercollider},Argonne National Laboratory,June 2-5,1993。)
我们在T^6/(Z_2 x Z_2)定向折叠上考察了IIA型弦论中由相交的D 6-膜构造的三族Pati-Salam模型的低能超对称性现象,该模型具有许多建立弦模型所需的唯象性质。在该模型中,低能谱中没有奇异物质,夸克和轻子的质量等级可以得到正确的,规范耦合在弦尺度上自动统一。我们计算了该模型的超对称破缺软项和相应的低能超对称粒子谱。我们发现WMAP约束的暗物质密度可以在这个模型中产生的stau-中性伴子和chargino-中性伴子共湮灭区,预期在LHC的最终状态组成的低能轻子和O(GeV)中微子。此外,我们预计在超临界弦宇宙学(SSC)的情况下,最终状态包括高能量轻子和O(GeV)中微子。