4.7 Article

Simple A4 models for dark matter stability with texture zeros

期刊

PHYSICAL REVIEW D
卷 99, 期 5, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.055044

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资金

  1. DGAPA-PAPIIT [IN107118]
  2. German-Mexican Research Collaboration Grant [778/4-1]
  3. CONACyT [278017]
  4. PIIF UNAM
  5. [DGAPA-PAPIIT IA102418]

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In a simple framework which naturally incorporates dark matter stability and neutrino phenomenology, we compute all the possible texture zeros which arise when the non-Abelian flavor symmetry A(4) is spontaneously broken to Z(2). As a result, we obtain four textures with two vanishing matrix elements. Two of such textures predict a zero contribution to the neutrinoless double beta decay effective mass parameter at tree level, and as a one loop bound we get m(ee) < 8 x 10(-2) meV. These are compatible with the normal ordering for the neutrino masses and the allowed range for the lightest neutrino mass is between m(vmin) similar to 3 meV and m(vmax) similar to 8 meV. Additionally we obtain dark matter stability linked to the way the flavor symmetry is broken, leaving a residual Z(2) symmetry.

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