Mirror particles and mirror matter: 50 years of speculation and searching

Okun, L.B.

doi:10.1070/pu2007v050n04abeh006227

Cited by 203 publications

(156 citation statements)

References 202 publications

(104 reference statements)

Supporting

Mentioning

155

Contrasting

Order By: Relevance

“…operators of the schematic form qγ µ γ 5 q × ∂ µ G G G /M 6 . These lead to a lifetime τ 1 +− ∼ 10 s (M/5 TeV) 12 (3 GeV/Λ QCD ) 13 , which is of interest for indirect detection signals as discussed in Section VII.…”

Section: Glueball Metastability and Relic Densitymentioning

confidence: 99%

Twin Higgs WIMP dark matter

2015

View full text Add to dashboard Cite

Dark matter (DM) without a matter asymmetry is studied in the context of Twin Higgs (TH) theories in which the LHC naturalness problem is addressed. These possess a twin sector related to the Standard Model (SM) by a (broken) Z2 symmetry, and interacting with the SM via a specific Higgs portal. We focus on the minimal realisation of the TH mechanism, the Fraternal Twin Higgs, with only a single generation of twin quarks and leptons, and SU (3) ×SU (2) gauge group. We show that a variety of natural twin-WIMP DM candidates are present (directly linked to the weak scale by naturalness), the simplest and most attractive being the τ lepton with a mass m τ > mHiggs/2, although spin-1 W ± DM and multicomponent DM are also possible (twin baryons are strongly disfavoured by tuning). We consider in detail the dynamics of the possibly (meta)stable glueballs in the twin sector, the nature of the twin QCD phase transition, and possible new contributions to the number of relativistic degrees of freedom ∆N eff . Direct detection signals are below current bounds but accessible in near future experiments. Indirect detection phenomenology is rich and requires detailed studies of twin hadronization and fragmentation to twin glueballs and quarkonia and their subsequent decay to SM, and possible light twin sector states.

show abstract

Section: Glueball Metastability and Relic Densitymentioning

confidence: 99%

Twin Higgs WIMP dark matter

2015

View full text Add to dashboard Cite

show abstract

“…We now develop a rudimentary model in which the ρ helps mediate a difference in the radiative n andn β decay rates. The notion of a hidden sector of strongly coupled matter is of some standing [34,35], and has more recently been discussed in the context of models which provide a common origin to baryons and dark matter [36,37], though the mechanism need not be realized through strong dynamics [38,39] -we note Ref. [40] for a recent review.…”

Section: T-odd Correlation In Radiativementioning

confidence: 99%

Radiativeβdecay for studies ofCPviolation

Gardner

2013

Phys. Rev. D

View full text Add to dashboard Cite

A triple-product correlation in the radiative β decay rate of neutrons or of nuclei, characterized by the kinematical variable ξ ≡ (l ν × l e ) · k, where, e.g., n(p) → p(p ) + e − (l e ) + ν e (l ν ) + γ(k), can be generated by the pseudo-Chern-Simons term found by Harvey, Hill, and Hill as a consequence of the baryon vector current anomaly and SU(2) L ×U(1) Y gauge invariance at low energies. The correlation probes the imaginary part of its coupling constant, so that its observation at anticipated levels of sensitivity would reflect the presence of sources of CP violation beyond the standard model.We compute the size of the asymmetry in n → pe −ν e γ decay in chiral effective theory, compare it with the computed background from standard-model final-state interactions, and consider the new physics scenarios which would be limited by its experimental study.

show abstract

“…In [2], this idea has been significantly expanded and was later adapted to the framework of the standard model of particle physics [3]. A recent review can be found in [4]. Interactions between ordinary and mirror particles are possible, e.g., they both feel gravity, making mirror matter a viable candidate for dark matter [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Neutron to mirror-neutron oscillations in the presence of mirror magnetic fields

Altarev¹,

Baker²,

Ban³

et al. 2009

Phys. Rev. D

View full text Add to dashboard Cite

Article (Published Version) http://sro.sussex.ac.uk Alterev, I, Harris, Philip, Shiers, David and et al, (2009) Neutron to mirror-neutron oscillations in the presence of mirror magnetic fields. Physical Review D, 80 (3). 032003. ISSN 1550-7998 This version is available from Sussex Research Online: http://sro.sussex.ac.uk/16039/ This document is made available in accordance with publisher policies and may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the URL above for details on accessing the published version. Copyright and reuse:Sussex Research Online is a digital repository of the research output of the University.Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available.Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way.Neutron to mirror-neutron oscillations in the presence of mirror magnetic fields We performed ultracold neutron storage measurements to search for additional losses due to neutron (n) to mirror-neutron (n 0 ) oscillations as a function of an applied magnetic field B. In the presence of a mirror magnetic field B 0 , ultracold neutron losses would be maximal for B % B 0 . We did not observe any indication for nn 0 oscillations and placed a lower limit on the oscillation time of nn 0 > 12:0sat 95% C.L. for any B 0 between 0 and 12:5 T.

show abstract

Mirror particles and mirror matter: 50 years of speculation and searching

Cited by 203 publications

References 202 publications

Twin Higgs WIMP dark matter

Twin Higgs WIMP dark matter

Radiativeβdecay for studies ofCPviolation

Neutron to mirror-neutron oscillations in the presence of mirror magnetic fields

Contact Info

Product

Resources

About