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Title: Electroweak Kaluza-Klein dark matter

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [4];  [5]
  1. Center for Theoretical Physics of the Universe, Daejeon (Korea)
  2. Center for Theoretical Physics of the Universe, Daejeon (Korea); Sungkyunkwan Univ., Suwon (Korea)
  3. Univ. of Kansas, Lawrence, KS (United States); Univ. of Pittsburgh, Pittsburgh, PA (United States)
  4. Univ. of Kansas, Lawrence, KS (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  5. Yonsei Univ., Seoul (Korea); Korea Institute for Advanced Study, Seoul (Korea)

In models with universal extra dimensions (UED), the lightest Kaluza-Klein excitation of neutral electroweak gauge bosons is a stable, weakly interacting massive particle and thus is a candidate for dark matter thanks to Kaluza-Klein parity. We examine concrete model realizations of such dark matter in the context of non-minimal UED extensions. The boundary localized kinetic terms for the electroweak gauge bosons lead to a non-trivial mixing among the first Kaluza-Klein excitations of the $${\rm SU}(2)_W$$ and $${\rm U}(1)_Y$$ gauge bosons and the resultant low energy phenomenology is rich. We investigate implications of various experiments including low energy electroweak precision measurements, direct and indirect detection of dark matter particles and direct collider searches at the LHC. Furthermore, we show that the electroweak Kaluza-Klein dark matter can be as heavy as 2.4 TeV, which is significantly higher than $1.3$ TeV as is indicated as an upper bound in the minimal UED model.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1350512
Report Number(s):
CTPU-16-31; FERMILAB-PUB-16-554-T; PITT-PACC-1616; arXiv:1702.02949; 1512932; TRN: US1700547
Journal Information:
Journal of High Energy Physics (Online), Vol. 2017, Issue 4; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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Cited By (3)

B anomalies in the nonminimal universal extra dimension model journal October 2019
$t \rightarrow cg$ and $t \rightarrow cZ$ in universal extra-dimensional models journal May 2019
Effects of universal extra dimensions on top-quark electromagnetic interactions journal December 2019

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