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Hsieh, Ken; Schmitz, Kai; Yu, J.; Yuan, C. P.

doi:10.1103/physrevd.82.035011

Cited by 82 publications

(139 citation statements)

References 50 publications

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“…This is beyond the scope of this paper. We however note that such a parameter fitting has been carried out for the SU(2) L ⊗ SU(2) R ⊗ U(1) B−L models in the literature [139,144] and, according to the results, a 2 TeV W R with an O(10 −3 ) W -W R mixing can evade the electroweak precision constraint. Since the structure of the TeV-scale gauge sector of our model is similar to those in these models, we expect that our model can also avoid this constraint.…”

Section: Jhep02(2016)120mentioning

confidence: 99%

The ATLAS diboson resonance in non-supersymmetric SO(10)

Evans

Olive

Zheng

2016

J. High Energ. Phys.

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SO(10) grand unification accommodates intermediate gauge symmetries with which gauge coupling unification can be realized without supersymmetry. In this paper, we discuss the possibility that a new massive gauge boson associated with an intermediate gauge symmetry explains the excess observed in the diboson resonance search recently reported by the ATLAS experiment. The model we find has two intermediate symmetries,where the latter gauge group is broken at the TeV scale. This model achieves gauge coupling unification with a unification scale sufficiently high to avoid proton decay. In addition, this model provides a good dark matter candidates, whose stability is guaranteed by a Z 2 symmetry present after the spontaneous breaking of the intermediate gauge symmetries. We also discuss prospects for testing these models in the forthcoming LHC experiments and dark matter detection experiments.

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Section: Jhep02(2016)120mentioning

confidence: 99%

The ATLAS diboson resonance in non-supersymmetric SO(10)

Evans

Olive

Zheng

2016

J. High Energ. Phys.

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“…(17)(18)(19)(20) to explain the numbers in the btagging column in Table II. Table II shows that about 60% of the signal and ttb background events pass btagging even with the imperfect reconstruction of the extra jet.…”

Section: B χ 2 -Template and Extra-jet Taggingmentioning

confidence: 99%

“…A summary may be found in Ref. [19]. In this study we adopt an effective Lagrangian approach rather than focusing on specific NP models.…”

Section: The Modelmentioning

confidence: 99%

Calculation of associated production of a top quark and aW′at the LHC

Cao

Berger

et al. 2011

Phys. Rev. D

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We investigate collider signatures of a top-philic W ′ model, in which the W ′ boson couples only to the third-generation quarks of the standard model. The main discovery channel for this W ′ is through associated production of the W ′ and top quark, yielding a top-quark pair plus an extra bottom quark jet as a signal. We do a full simulation of the signal and relevant backgrounds. We develop a method of analysis that allows us to conclude that discovery of the W ′ is promising at the LHC despite large standard model backgrounds. Bottom quark tagging of the extra jet is key to suppressing the backgrounds.

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“…The energy spectrum of the IceCube events (in particular, its end point) and the measured flux therefore determine the mass and the decay width into neutrinos of N 1 . We will show that hadronic decays of N 1 induce an additional decay channel that can be "fast" enough to be in contradiction with, among others, gamma-ray bounds: this implies that our model needs to assume a "hadrophobic" structure [49,50], in order to stabilize this decay channel. The IceCube flux implies a severe suppression of the coupling to lefthanded (LH) lepton and Higgs doublets, preventing N 1 production in the early Universe by means of this type of interactions.…”

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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Global analysis of generalSU(2)×SU(2)×U(1)models wit

Cited by 82 publications

References 50 publications

The ATLAS diboson resonance in non-supersymmetric SO(10)

The ATLAS diboson resonance in non-supersymmetric SO(10)

Calculation of associated production of a top quark and aW′at the LHC

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

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