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Title: Improved bounds on universal extra dimensions and consequences for LKP dark matter

Journal Article ·
OSTI ID:878957

We study constraints on models with a flat 'Universal' Extra Dimension in which all Standard Model fields propagate in the bulk. A significantly improved constraint on the compactification scale is obtained from the extended set of electroweak precision observables accurately measured at LEP1 and LEP2. We find a lower bound of M{sub c} = R{sup -1} > 700 (800) GeV at the 99% (95%) confidence level. We also discuss the implications of this constraint on the prospects for the direct and indirect detection of Kaluza-Klein dark matter in this model.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76CH03000
OSTI ID:
878957
Report Number(s):
FERMILAB-PUB-05-416-A; arXiv eprint number hep-ph/0509352; TRN: US0700258
Country of Publication:
United States
Language:
English

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