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arXiv 0901.0720hep-ph
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分裂UED与暗物质

Split-UED and Dark Matter

Seong Chan Park, Jing Shu

摘要:

受PAMELA和ATIC/PPB-BETS最近对宇宙线中高能电子和正电子过剩的观测的启发,我们提出了一个普适额外维的无反常方案,它使SM夸克局域化,并使KK夸克的谱从KK轻子中分裂出来.当SM夸克“很好地定域”在边界上时,模型的最严格的边界($1/R > 510$ GeV)来自Tevatron双喷通道的共振搜索。即使在LHC的早期阶段,人们也可以发现质量高达4 TeV的第二个KK胶子。

英文摘要:

Motivated by the recent observation of the high energy electron and positron excesses in cosmic ray by PAMELA and ATIC/PPB-BETS, we suggest an anomaly-free scenario for the universal extra dimension that localizes the SM quarks and splits the spectrum of KK quarks from KK leptons. When the SM quarks are "well localized" at the boundaries, the most stringent bound of the model ($1/R > 510$ GeV) comes from the resonance search for the Tevatron dijet channels. Even at the early stage of LHC, one can discover the second KK gluon for masses up to 4 TeV.

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