Light Dirac neutrino in left-right-symmetric models

Mishra, Snigdha; Misra, S. P.; Panda, Sudhakar; Sarkar, Utpal

doi:10.1103/physrevd.35.975

Cited by 7 publications

(2 citation statements)

References 34 publications

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“…Meanwhile, all of the other observed fermions are the Dirac particles rather than the Majorana particles. Therefore, it is worth exploring the possibility of the Dirac neutrinos [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] in the grand unification framework.…”

Section: Introductionmentioning

confidence: 99%

An SO(10) × SO(10)′ model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

2014

J. Cosmol. Astropart. Phys.

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We propose an SO(10) × SO(10)′ model to simultaneously realize a seesaw for Dirac neutrino masses and a leptogenesis for ordinary and dark matter-antimatter asymmetries. A (16 × 1̄6̄′)H scalar crossing the SO(10) and SO(10)′ sectors plays an essential role in this seesaw-leptogenesis scenario. As a result of lepton number conservation, the lightest dark nucleon as the dark matter particle should have a determined mass around 15 GeV to explain the comparable fractions of ordinary and dark matter in the present universe. The (16 × 1̄6̄′)H scalar also mediates a U(1)em × U(1)′em kinetic mixing after the ordinary and dark left-right symmetry breaking so that we can expect a dark nucleon scattering in direct detection experiments and/or a dark nucleon decay in indirect detection experiments. Furthermore, we can impose a softly broken mirror symmetry to simplify the parameter choice.

show abstract

Section: Introductionmentioning

confidence: 99%

An SO(10) × SO(10)′ model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

2014

J. Cosmol. Astropart. Phys.

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show abstract

“…Meanwhile, all of the other observed fermions are the Dirac particles rather than the Majorana particles. Therefore, it is worth exploring the possibility of the Dirac neutrinos [15][16][17][18][19][20][21] in the grand unification framework.…”

Section: Introductionmentioning

confidence: 99%

An SO(10) \times SO(10)' model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

2014

Preprint

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We propose an SO(10) × SO(10) ′ model to simultaneously realize a seesaw for Dirac neutrino masses and a leptogenesis for ordinary and dark matter-antimatter asymmetries. A (16×16 ′ ) H scalar crossing the SO(10) and SO(10) ′ sectors plays an essential role in this seesaw-leptogenesis scenario. As a result of lepton number conservation, the lightest dark nucleon as the dark matter particle should have a determined mass around 15 GeV to explain the comparable fractions of ordinary and dark matter in the present universe. The (16 × 16′ ) H scalar also mediates a U (1) em × U (1) ′ em kinetic mixing after the ordinary and dark left-right symmetry breaking so that we can expect a dark nucleon scattering in direct detection experiments and/or a dark nucleon decay in indirect detection experiments. If a proper mirror symmetry is imposed, our Dirac seesaw will not require more unknown parameters than the canonical Majorana seesaw.

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Light Dirac neutrino in a superstring inspired model

Mishra

Misra

1989

Physics Letters B

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Light Dirac neutrino in left-right-symmetric models

Cited by 7 publications

References 34 publications

An SO(10) × SO(10)′ model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

An SO(10) × SO(10)′ model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

An SO(10) \times SO(10)' model for common origin of neutrino masses, ordinary and dark matter-antimatter asymmetries

Light Dirac neutrino in a superstring inspired model

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