Remark on the minimal seesaw model and leptogenesis with tribimaximal mixing

Journal Article · Wed Aug 01 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.033002· OSTI ID:21027489

Kitabayashi, Teruyuki ^[1]

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1. Department of Physics, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259-1292 (Japan)

We have studied a leptogenesis scenario in the framework of the minimal seesaw model with tribimaximal mixing. Usually, at least one of the elements in the Dirac mass matrix is fixed to be zero, for example, we denote it by b{sub 2}=0. We have pointed out that the absolute value of the CP asymmetry has several minimums and maximums with nonzero b{sub 2}. Thus one can expect that more rich phenomena, such as an enhanced leptogenesis, are hidden in the b{sub 2}{ne}0 space.

• OSTI ID: 21027489
• Journal Information: Physical Review. D, Particles Fields, Vol. 76, Issue 3; Other Information: DOI: 10.1103/PhysRevD.76.033002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
COSMOLOGY
CP INVARIANCE
MATRICES
NEUTRINO OSCILLATION
NEUTRINOS
PARTICLE PRODUCTION
QUANTUM FIELD THEORY
REST MASS
SPACE