Status of the KATRIN experiment

Fischer, Sebastian

doi:10.22323/1.134.0097

Cited by 2 publications

(4 citation statements)

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“…However, four of them have additional independent quartic invariants. These are ∆ (24) = S 4 with one extra invariant, as well as ∆(12) = A 4 , ∆ (27) and ∆ (54) with two additional invariants each [103]. These new invariants may spoil the structure of the vacuum derived from ∆V of Eq.…”

Section: Vacuum Alignment Mechanism In Indirect Modelsmentioning

confidence: 99%

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Neutrino mass and mixing with discrete symmetry

2013

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This is a review article about neutrino mass and mixing and flavour model building strategies based on discrete family symmetry. After a pedagogical introduction and overview of the whole of neutrino physics, we focus on the PMNS mixing matrix and the latest global fits following the Daya Bay and RENO experiments which measure the reactor angle. We then describe the simple bimaximal, tri-bimaximal and golden ratio patterns of lepton mixing and the deviations required for a non-zero reactor angle, with solar or atmospheric mixing sum rules resulting from charged lepton corrections or residual trimaximal mixing. The different types of see-saw mechanism are then reviewed as well as the sequential dominance mechanism. We then give a mini-review of finite group theory, which may be used as a discrete family symmetry broken by flavons either completely, or with different subgroups preserved in the neutrino and charged lepton sectors. These two approaches are then reviewed in detail in separate chapters including mechanisms for flavon vacuum alignment and different model building strategies that have been proposed to generate the reactor angle. We then briefly review grand unified theories (GUTs) and how they may be combined with discrete family symmetry to describe all quark and lepton masses and mixing. Finally we discuss three model examples which combine an SU (5) GUT with the discrete family symmetries A 4 , S 4 and ∆(96).

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Section: Vacuum Alignment Mechanism In Indirect Modelsmentioning

confidence: 99%

“…3. Independently of whether neutrinos are Dirac or Majorana, the tritium beta decay experiment KATRIN [24] will tell us about the absolute scale of neutrino mass down to about 0.35 eV. Such experiments measure the 'electron neutrino mass' defined by…”

Section: Neutrinoless Double Beta Decay Experiments (For a Recentmentioning

confidence: 99%

Neutrino mass and mixing with discrete symmetry

2013

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“…The region allowed by the normal (inverted) mass ordering is in blue (red), the recent limit on |m ee | given by KamLAND-Zen [39] in gray and the region excluded by cosmology [41] in magenta. We also show the reach expected for the beta decay experiment Katrin [42], as well as the ultimate reach aimed by the neutrinoless double beta decay experiments GERDA and CUORE according to ref. [40].…”

Section: The 3+1 Scenariomentioning

confidence: 73%

“…The KArlsruhe TRitium Neutrino mass experiment (KATRIN) will have a sensitivity on the electron neutrino effective mass, m β = i |U ei | 2 m 2 i , of 0.2 eV at 95% CL [32]. Cosmological limits today still allow for quasi-degenerate neutrino masses; however, this possibility will soon be confirmed or ruled out.…”

Section: Future Perspectivesmentioning

confidence: 99%

Neutrino mass matrix textures: a data-driven approach

Bertuzzo

Machado

Funchal

2013

J. High Energ. Phys.

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Abstract:We analyze the neutrino mass matrix entries and their correlations in a probabilistic fashion, constructing probability distribution functions using the latest results from neutrino oscillation fits. Two cases are considered: the standard three neutrino scenario as well as the inclusion of a new sterile neutrino that potentially explains the reactor and gallium anomalies. We discuss the current limits and future perspectives on the mass matrix elements that can be useful for model building.

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Status of the KATRIN experiment

Cited by 2 publications

References 10 publications

Neutrino mass and mixing with discrete symmetry

Neutrino mass and mixing with discrete symmetry

Neutrino mass matrix textures: a data-driven approach

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