Minimal Left-Right Symmetric Dark Matter

Heeck, Julian; Patra, Sudhanwa

doi:10.1103/physrevlett.115.121804

Cited by 94 publications

(151 citation statements)

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“…In such a case, the explanation of the baryon asymmetry of the universe could be found closely above or even below the electroweak scale [27][28][29]. Moreover, the W R predicted around 2 TeV can lead to an interesting dark matter phenomenology as explored recently [82].…”

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confidence: 87%

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

et al. 2016

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We interpret the 2 TeV excesses at the LHC in a left-right symmetric model with Higgs doublets and spontaneous D-parity violation. The light neutrino masses are understood via a linear seesaw, suppressed by a high D-parity breaking scale, and the heavy neutrinos have a pseudo-Dirac character. In addition, with a suppressed right-handed gauge coupling gR/gL ≈ 0.6 in an SO(10) embedding, we can thereby interpret the observed eejj excess at CMS. We show that it can be reconciled with the diboson and dijet excesses within a simplified scenario based on our model. Moreover, we find that the mixing between the light and heavy neutrinos can be potentially large which would induce dominant non-standard contributions to neutrinoless double beta decay via long-range λ and η neutrino exchange.

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confidence: 87%

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

et al. 2016

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“…The dark matter phenomenology for triplets will differ from Refs. [11,12] due to additional coannihilation effects from Z B,ℓ gauge boson-mediated diagrams. Thus, in LB-LRSM, the possible annihilation channels are as follows:…”

Section: A Lepto-baryons As Dark Mattermentioning

confidence: 99%

“…Here the possibilities of having stable TeV-scale dark matter in lepto-baryonic left-right models is explained in a manner followed in a recent work [11] where the stability of the dark matter is either ensured automatically because of a high SU (2) dimension or due to the remnant discrete symmetry arising after spontaneous breaking of the U (1) B−L gauge group. The goal of this work is to only provide all stable dark matter components, and omit a detailed discussion, as the same has been discussed in [11,12].…”

Section: B Minimal Left-right Dark Matter Possibilitiesmentioning

confidence: 99%

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Dark matter, lepton and baryon number, and left-right symmetric theories

Patra

2016

Phys. Rev. D

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A lepto-baryonic left-right symmetric theory is considered along with pointing out stable dark matter candidates whose stability is ensured automatically where leptons and baryons are defined as local gauge symmetries. These theories are generally anomalous and the possible gauge anomaly free solutions for these theories are presented. It is found that the neutral component of fermion triplets can be a viable dark matter candidate originally introduced for gauge anomaly cancellation. The other dark matter possibilities within this lepto-baryonic left-right symmetric theory are also presented.

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“…See instead ref. [56] for a discussion of TeV-scale DM in the context of the LRSM and ref. [57,58] for the freeze-in mechanism in the context of a keV sterile neutrino DM.…”

Section: Introductionmentioning

confidence: 99%

A consistent model for leptogenesis, dark matter and the IceCube signal

Fiorentin

Niro

Fornengo

2016

J. High Energ. Phys.

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We discuss a left-right symmetric extension of the Standard Model in which the three additional right-handed neutrinos play a central role in explaining the baryon asymmetry of the Universe, the dark matter abundance and the ultra energetic signal detected by the IceCube experiment. The energy spectrum and neutrino flux measured by IceCube are ascribed to the decays of the lightest right-handed neutrino N 1 , thus fixing its mass and lifetime, while the production of N 1 in the primordial thermal bath occurs via a freeze-in mechanism driven by the additional SU(2) R interactions. The constraints imposed by IceCube and the dark matter abundance allow nonetheless the heavier righthanded neutrinos to realize a standard type-I seesaw leptogenesis, with the B − L asymmetry dominantly produced by the next-to-lightest neutrino N 2 . Further consequences and predictions of the model are that: the N 1 production implies a specific power-law relation between the reheating temperature of the Universe and the vacuum expectation value of the SU(2) R triplet; leptogenesis imposes a lower bound on the reheating temperature of the Universe at 7 × 10 9 GeV. Additionally, the model requires a vanishing absolute neutrino mass scale m 1 0.

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Minimal Left-Right Symmetric Dark Matter

Cited by 94 publications

References 64 publications

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

Dark matter, lepton and baryon number, and left-right symmetric theories

A consistent model for leptogenesis, dark matter and the IceCube signal

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