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Vector-like technineutron Dark Matter: is a QCD-type Technicolor ruled out by XENON100?

Pasechnik, Roman LU ; Beylin, Vitaly; Kuksa, Vladimir and Vereshkov, Grigory (2014) In European Physical Journal C. Particles and Fields 74(2).
Abstract
One of the specific predictions of a new strongly coupled dynamics at a TeV scale is the existence of stable vector-like technibaryon states so that the lightest neutral one could serve as a Dark Matter candidate. We study the latter hypothesis in the QCD-type technicolor with SU (3)(TC) confined group and one SU (2)(W) doublet of vector-like techniquarks consistent with electroweak precision constraints and test it against the existing Dark Matter astrophysics data. We discuss the most stringent Dark Matter constraints on weak interactions of technibaryons in SU (3)(TC) technicolor and possible implications of these findings for the cosmological evolution of relic technineutrons. We conclude that vector-like techniquark sectors with an... (More)
One of the specific predictions of a new strongly coupled dynamics at a TeV scale is the existence of stable vector-like technibaryon states so that the lightest neutral one could serve as a Dark Matter candidate. We study the latter hypothesis in the QCD-type technicolor with SU (3)(TC) confined group and one SU (2)(W) doublet of vector-like techniquarks consistent with electroweak precision constraints and test it against the existing Dark Matter astrophysics data. We discuss the most stringent Dark Matter constraints on weak interactions of technibaryons in SU (3)(TC) technicolor and possible implications of these findings for the cosmological evolution of relic technineutrons. We conclude that vector-like techniquark sectors with an odd group of confinement SU(2n + 1)(TC), n = 1, 2, ... and with ordinary vector-like weak SU (2)(W) interactions are excluded by XENON100 data under the assumption of technibaryon number conservation in the modern Universe allowing for an even technicolor group SU (2n)(TC) only. (Less)
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Contribution to journal
publication status
published
subject
in
European Physical Journal C. Particles and Fields
volume
74
issue
2
publisher
Springer
external identifiers
  • wos:000331637900001
  • scopus:84897651622
ISSN
1434-6044
DOI
10.1140/epjc/s10052-014-2728-3
language
English
LU publication?
yes
id
10eee74f-132f-4004-bb0c-ae0c16bc5576 (old id 4376345)
date added to LUP
2014-04-14 13:18:56
date last changed
2017-03-05 03:49:52
@article{10eee74f-132f-4004-bb0c-ae0c16bc5576,
  abstract     = {One of the specific predictions of a new strongly coupled dynamics at a TeV scale is the existence of stable vector-like technibaryon states so that the lightest neutral one could serve as a Dark Matter candidate. We study the latter hypothesis in the QCD-type technicolor with SU (3)(TC) confined group and one SU (2)(W) doublet of vector-like techniquarks consistent with electroweak precision constraints and test it against the existing Dark Matter astrophysics data. We discuss the most stringent Dark Matter constraints on weak interactions of technibaryons in SU (3)(TC) technicolor and possible implications of these findings for the cosmological evolution of relic technineutrons. We conclude that vector-like techniquark sectors with an odd group of confinement SU(2n + 1)(TC), n = 1, 2, ... and with ordinary vector-like weak SU (2)(W) interactions are excluded by XENON100 data under the assumption of technibaryon number conservation in the modern Universe allowing for an even technicolor group SU (2n)(TC) only.},
  articleno    = {2728},
  author       = {Pasechnik, Roman and Beylin, Vitaly and Kuksa, Vladimir and Vereshkov, Grigory},
  issn         = {1434-6044},
  language     = {eng},
  number       = {2},
  publisher    = {Springer},
  series       = {European Physical Journal C. Particles and Fields},
  title        = {Vector-like technineutron Dark Matter: is a QCD-type Technicolor ruled out by XENON100?},
  url          = {http://dx.doi.org/10.1140/epjc/s10052-014-2728-3},
  volume       = {74},
  year         = {2014},
}