<font>SO</font>(10)<i>À LA</i> PATI–SALAM

Aulakh, Charanjit S.; Girdhar, Aarti

doi:10.1142/s0217751x0502001x

Cited by 92 publications

(196 citation statements)

References 25 publications

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“…One version of the theory with only 10 H and 126 H was studied in great detail in the case of low-energy supersymmetry [13,14,15]. In spite of having a small number of parameters it seems to be consistent with all the data [16,17,18,19,20].…”

Section: Introductionmentioning

confidence: 95%

Yukawa sector in nonsupersymmetric renormalizable SO(10)

et al. 2006

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We discuss the ordinary, non-supersymmetric SO(10) as a theory of fermion masses and mixings. We construct two minimal versions of the Yukawa sector based on 126H and either 10H or 120H. The latter case is of particular interest since it connects the absolute neutrino mass scale with the size of the atmospheric mixing angle θA. It also relates the smallness of V cb with the largeness of θA. These results are based on the analytic study of the second and third generations. Furthermore, we discuss the structure of the light Higgs and the role of the Peccei-Quinn symmetry for dark matter and the predictivity of the theory.

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Section: Introductionmentioning

confidence: 95%

Yukawa sector in nonsupersymmetric renormalizable SO(10)

et al. 2006

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“…[66]) and determine the whole scalar mass spectrum. The gauge boson mass spectrum is determined by constructing the covariant derivative and then analyzing the kinetic part of the Lagrangian, as usual.…”

Section: Tree Level Mass Spectrummentioning

confidence: 99%

“…But as shown in Ref. [66], one can identify the sub-multiplets inside the full multiplet in a systematic way and insert the vev's for the SM singlets to obtain the scalar mass spectrum.…”

Section: Scalar Boson Mass Spectrummentioning

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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“…[60]) and determine the whole scalar mass spectrum. The gauge boson mass spectrum is determined by constructing the covariant derivative and then analyzing the kinetic part of the Lagrangian, as usual.…”

Section: Tree Level Mass Spectrummentioning

confidence: 99%

“…But as shown in Ref. [60], one can identify the sub-multiplets inside the full multiplet in a systematic way and insert the vev's for the SM singlets to obtain the scalar mass spectrum.…”

Section: Scalar Boson Mass Spectrummentioning

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. *

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SO(10)À LA PATI–SALAM

Cited by 92 publications

References 25 publications

Yukawa sector in nonsupersymmetric renormalizable SO(10)

Yukawa sector in nonsupersymmetric renormalizable 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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