当前位置： 文档下载 > 所有分类 > Leptogenesis with SU(5)-inspired mass matricesIn the baryogenesis via leptogenesis framework the baryonic asymmetry depends on lepton mass matrices. In a previous paper we used SO(10)-inspired mass matrices and we found few possibilities to obtain a sufficient level of asymmetry. In the present paper
DSF-01/2001
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002 naJ 51 1v1511010/hp-pe:hviXraLeptogenesiswithSU(5)-inspiredmassmatrices
D.FalconeandF.Tramontano
DipartimentodiScienzeFisiche,Universit`adiNapoli,ComplessodiMonteSant’Angelo,ViaCintia,Napoli,Italy
e-mail:falcone@na.infn.it;tramontano@na.infn.it
Inthebaryogenesisvialeptogenesisframeworkthebaryonicasymmetrydependsonleptonmassmatrices.InapreviouspaperweusedSO(10)-inspiredmassmatricesandwefoundfewpossibilitiestoobtainasuf- cientlevelofasymmetry.InthepresentpaperweuseSU(5)-inspiredmassmatrices,whichalsoallowtocheckthedependenceofthebary-onicasymmetryonDiracneutrinomasses.Inparticular,we ndthatthelargemixingmattersolutiontothesolarneutrinoproblem,whichwithinSO(10)givestoosmallasymmetry,cannowbefavoured.
is present below the mass $M_{N_1}$ of ...Our scheme is inspired by U (1) models of ?...leptogenesis scenario have become more and more ...
[5, 6] or the mass splitting among the heavy Majorana neutrinos in the ...matrix (Yν Yν? )jk , which are needed for leptogenesis, are zero ...
< Σ′ >= Λ′ the Dirac and Majorana mass matrices are given as ? ...As is well known [4,5,6,7] the leptogenesis asymmetry is given by ...
Connecting Link Between Leptogenesis and ...(5) We deduce that the mass eigenvalues and θ...nd that for the unitary matrix relevant to ...
Leptogenesis in the minimal extension of the ...After the SU(2)L × U(1)Y symmetry breaking...by [5, 15, 16] The neutrino mass matrix, de...
Remark on the minimal seesaw model and leptogenesis with tri/bi-maximal ...(5), the low energy neutrino mass matrix Mν can be written by ?ve ...
supergravity-inspired cosmological models is the ...ective mass matrix, v ? 174 GeV and tan β ...5 10 11 10 11 Direct leptogenesis bound Direct...
Italy a By relating the Dirac neutrino mass matrix to the mass of the ...baryogenesis from leptogenesis scenario [15], M1 > 5 · 108 GeV, (9)...
c textures in mass matrices[3].The observed ...baryogenesis via leptogenesis,if right-handed ...1 5α ? 2 3 αs = one?loop 1 ′′′ (...
neutrino oscillation is excluded at more than 5σ...Type III? Leptogenesis Mechanism Fukugita & ... implies Namely Diagonalizing mass matrices ? ...
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