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Susy Seesaw Inflation and NMSO(10)GUT

机译:Susy Seesaw通货膨胀和NMSO(10)肠道

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We show that Supersymmetric models with Type I seesaw neutrino masses support slow roll inflection point inflation. The inflaton is the D-flat direction labelled by the chiral invariant HLN composed of the Higgs(H), slepton(L) and conjugate sneutrino(N) superfields. The scale of inflation and fine tuning is set by the conjugate neutrino Majorana mass M_(νc) ~ 10~6 -10~(12) GeV. The cubic term in the (quartic) inflaton potential is dominantly from superpotential (not soft Susy breaking) couplings. The tuning conditions are thus insensitive to soft supersymmetry breaking parameters and are generically much less stringent than for previous 'A-term' inflation scenarios controlled by mass scales ~ TeV. WMAP limits on the ratio of tensor to scalar perturbations limit the scale M controlling inflection point inflation: M < 7.9×10~(13) GeV. 'Instant preheating' is operative and dumps the inflaton energy into MSSM modes giving a high reheat temperature: Trh ≈ M_(νc)~(3/4) 10~6 GeV ~ 10~(11) -10~(15) GeV. A large gravitino mass > 50 TeV is therefore required to avoid over closure by reheat produced gravitinos. 'Instant preheating' and NLH inflaton facilitate production of right handed neutrinos during inflaton decay and thus non-thermal leptogenesis in addition to thermal leptogenesis. We show that the embedding in the fully realistic New Minimal Supersymmetric SO(10) GUT requires use of the heaviest righthanded neutrino mass as the controlling scale but the possibility of a measurable tensor scalar perturbation ratio seems marginal.We examine the parametric difficulties remaining.
机译:我们表明,具有I型跷跷板中央群体的超对称模型支持缓慢滚动拐点通胀。发入是由由HGGS(H),储备(L)和缀合的Sneutrino(N)超壁组成的手性不变HLN标记的D形方向。通胀和微调的规模由共轭中微子Majorana Mass M_(νC)〜10〜6 -10〜(12)GEV设定。 (四静脉)入口电位中的立方体术语从超级势(非软SUSY断裂)联轴器占主导地位。因此,调谐条件对软超对称断裂参数不敏感,并且通常比以前的“A型术语”通胀场景普遍存在于大质量尺度〜TEV的普遍存在。 WMAP限制张量与标量扰动的比例限制了规模M控制拐点通胀:M <7.9×10〜(13)GEV。 '即时预热'是可操作的,将灌输能量转移到MSSM模式中,给出高再加热的温度:TRH≈M_(νC)〜(3/4)10〜6 GEV〜10〜(11)-10〜(15)GEV。因此,需要大的Gravitino Mass> 50 Tev来避免通过再加热产生的Gravitinos封闭。 '即时预热'和NLH inclaton促进在发炎衰减期间生产右手中微子,因此除了热含量外,不热含量。我们表明,在完全逼真的新最小超对对称的嵌入(10)肠道需要使用最重的右侧中微子质量作为控制规模,但可测量的张量标量扰动比的可能性似乎是边缘的。我们检查了剩余的参数困难。

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