Dark matter and gauge coupling unification in nonsupersymmetric SO(10) grand unified models

Mambrini, Yann; Nagata, Natsumi; Olive, Keith A.; Quevillon, Jérémie; Zheng, Jiaming

doi:10.1103/physrevd.91.095010

Cited by 116 publications

(161 citation statements)

References 103 publications

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“…The dark matter candidate is stabilized by a residual Z 2 symmetry arising after the SO(10) symmetry has been completely broken to the SM gauge symmetries [47][48][49][50][51][52][53][54][55][56][57][58][59]. This residual Z 2 , as it turns out, is equivalent to matter parity [60][61][62][63][64].…”

Section: Jhep02(2016)120mentioning

confidence: 99%

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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%

“…For a detailed discussions on this class of dark matter candidates in SO(10) GUTs, see refs. [56,57]. The low-energy matter content of this model, beyond the SM fermions and righthanded neutrinos (which are embedded into three 16 representations), is given in table 1.…”

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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“…trying to remain consistent with all the phenomenological constraints and predicting their own experimental signatures [8,15,16,17,18,19,9,20]. SO(10) grand unified theory [21] is undoubtedly the best motivated candidate in the abovementioned class of models.…”

Section: Introductionmentioning

confidence: 99%

Minimal nonsupersymmetricSO(10)model: Gauge coupling unification, proton decay, and fermion masses

Babu

Khan

2015

Phys. Rev. D

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We present a minimal renormalizable non-supersymmetric SO(10) grand unified model with a symmetry breaking sector consisting of Higgs fields in the 54 H + 126 H + 10 H representations. This model admits a single intermediate scale associated with Pati-Salam symmetry along with a discrete parity. Spontaneous symmetry breaking, the unification of gauge couplings and proton lifetime estimates are studied in detail in this framework. Including threshold corrections self-consistently, obtained from a full analysis of the Higgs potential, we show that the model is compatible with the current experimental bound on proton lifetime. The model generally predicts an upper bound of few times 10 35 yrs for proton lifetime, which is not too far from the present Super-Kamiokande limit of τ p 1.29 × 10 34 yrs. With the help of a Pecci-Quinn symmetry and the resulting axion, the model provides a suitable dark matter candidate while also solving the strong CP problem. The intermediate scale, M I ≈ (10 13 − 10 14 ) GeV which is also the B − L scale, is of the right order for the righthanded neutrino mass which enables a successful description of light neutrino masses and oscillations. The Yukawa sector of the model consists of only two matrices in family space and leads to a predictive scenario for quark and lepton masses and mixings. The branching ratios for proton decay are calculable with the leading modes being p → e + π 0 and p → νπ + .Even though the model predicts no new physics within the reach of LHC, the next generation proton decay detectors and axion search experiments have the capability to pass verdict on this minimal scenario. *

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“…Or the "hierarchy problem" may very well be an artificially created one in quantum field theories which necessarily require regularization of infinities. Despite the philosophical point of view one might adopt, the lack of hard evidence of new physics sparked the revival of a class of BSMs (Beyond Standard Models) known as non-SUSY Grand Unified Theories, which ignores the hierarchy problem while trying to remain consistent with all the phenomenological constraints and predicting their own experimental signatures [8,15,16,17,18,19,9,20]. SO(10) grand unified theory [21] is undoubtedly the best motivated candidate in the abovementioned class of models.…”

Section: Introductionmentioning

confidence: 99%

A minimal non-supersymmetric S O(10) model: Gauge coupling unification, proton decay and fermion masses

Khan

2016

AIP Conference Proceedings

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We present a minimal renormalizable non-supersymmetric SO(10) grand unified model with a symmetry breaking sector consisting of Higgs fields in the 54 H + 126 H + 10 H representations. This model admits a single intermediate scale associated with Pati-Salam symmetry along with a discrete parity. Spontaneous symmetry breaking, the unification of gauge couplings and proton lifetime estimates are studied in detail in this framework. Including threshold corrections self-consistently, obtained from a full analysis of the Higgs potential, we show that the model is compatible with the current experimental bound on proton lifetime. The model generally predicts an upper bound of few times 10 35 yrs for proton lifetime, which is not too far from the present Super-Kamiokande limit of τ p 1.29 × 10 34 yrs. With the help of a Pecci-Quinn symmetry and the resulting axion, the model provides a suitable dark matter candidate while also solving the strong CP problem. The intermediate scale, M I ≈ (10 13 − 10 14 ) GeV which is also the B − L scale, is of the right order for the righthanded neutrino mass which enables a successful description of light neutrino masses and oscillations. The Yukawa sector of the model consists of only two matrices in family space and leads to a predictive scenario for quark and lepton masses and mixings. The branching ratios for proton decay are calculable with the leading modes being p → e + π 0 and p → νπ + . Even though the model predicts no new physics within the reach of LHC, the next generation proton decay detectors and axion search experiments have the capability to pass verdict on this minimal scenario. *

show abstract

Dark matter and gauge coupling unification in nonsupersymmetric SO(10) grand unified models

Cited by 116 publications

References 103 publications

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

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

Minimal nonsupersymmetricSO(10)model: Gauge coupling unification, proton decay, and fermion masses

A minimal non-supersymmetric S O(10) model: Gauge coupling unification, proton decay and fermion masses

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