Ue3 from physics above the GUT scale

Vissani, Francesco; Narayan, Mohan; Berezinsky, V.

doi:10.1016/j.physletb.2003.07.002

Cited by 40 publications

(70 citation statements)

References 45 publications

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“…Smaller |m ββ | values can be obtained only if the Majorana phases differ by ∼ π . Based on this, theoretical models for the neutrino mass matrix predicting a small |m ββ | [9,10] are expected to have Majorana phases which obey this condition.…”

Section: Discussionmentioning

confidence: 99%

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Effective Majorana mass and neutrinoless double beta decay

Benato

2015

Eur. Phys. J. C

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The probability distribution for the effective Majorana mass as a function of the lightest neutrino mass in the standard three neutrino scheme is computed via a random sampling from the distributions of the involved mixing angles and squared mass differences. A flat distribution in the [0, 2π ] range for the Majorana phases is assumed, and the dependence of small values of the effective mass on the Majorana phases is highlighted. The study is then extended with the addition of the cosmological bound on the sum of the neutrino masses. Finally, the prospects for 0νββ decay search with 76 Ge, 130 Te and 136 Xe are discussed, as well as those for the measurement of the electron neutrino mass.

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Section: Discussionmentioning

confidence: 99%

“…This does not necessarily mean that a vanishing effective mass implies that the theory suffers from dangerous fine tuning. Namely, in some models the effective mass can assume a naturally small value that remains small after renormalization due to the chiral symmetry of fermions [9,10].…”

Section: Effective Mass Versus Lightest Neutrino Massmentioning

confidence: 99%

Effective Majorana mass and neutrinoless double beta decay

Benato

2015

Eur. Phys. J. C

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“…Shown are predictions from quark-lepton complementarity (QLC) and tri-bimaximal mixing (see secs. 4,5). The best-fit values and the allowed regions of sin 2 θ 23 at different confidence levels determined by different groups: SK [13], GMS [23], Bari [20].…”

Section: Experimental Results and Global Fitsmentioning

confidence: 99%

“…One may think that this operator is generated by some gravitational Planck scale effects, so that M ∼ M P l and λ ij ∼ 1 [3]. In this case however, m ij ∼ 10 −5 eV are too small to explain the observed masses (although such a contribution can still produce some subleading features [4]). Therefore, new scales of physics below M P l must exist to give the desired mass to neutrinos.…”

Section: A Neutrinos and The Standard Modelmentioning

confidence: 94%

Neutrino mass and New physics

Smirnov

2006

J. Phys.: Conf. Ser.

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We review the present state and future outlook of our understanding of neutrino masses and mixings. We discuss what we think are the most important perspectives on the plausible and natural scenarios for neutrinos and attempt to throw light onto the flavor problem of quarks and leptons. This review focuses on the seesaw mechanism, which fits into a big picture of particle physics such as supersymmetry and grand unification providing a unified approach to the flavor problem of quarks and leptons. We argue that in combination with family symmetries, this may be at the heart of a unified understanding of the flavor puzzle. We also discuss other new physics ideas such as neutrinos in models with extra dimensions and possible theoretical implications of sterile neutrinos. We outline some tests for the various schemes.

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“…f 1, f 2 and f 3 are usually absorbed as a part of the definition of the charge lepton field. Due to Planck scale effects on neutrino mixing the new mixing matrix can be written as [9] …”

Section: −Iδmentioning

confidence: 99%

Neutrino Oscillation Phase Shift from Quantum Gravity

Koranga

2012

Int J Theor Phys

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The phase shift of neutrino oscillation could be discussed in the frame work of quantum gravity. Quantum gravity (Planck scale effects) leads to an effective SU(2) L ×U(1) invariant dimension-5 Lagrangian involving, neutrino and Higgs fields. On symmetry breaking, this operator gives rise to correction to the neutrino masses and mixing. We compute the neutrino oscillation phase due to Planck scale effects. The gravitational interaction (M X = M pl ) demands that the element of this perturbation matrix should be independent of flavor indices. In this paper, we study the quantum gravity effects on neutrino oscillation phases, namely modified dispersion relation for neutrino oscillation phases.

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Ue3 from physics above the GUT scale

Cited by 40 publications

References 45 publications

Effective Majorana mass and neutrinoless double beta decay

Effective Majorana mass and neutrinoless double beta decay

Neutrino mass and New physics

Neutrino Oscillation Phase Shift from Quantum Gravity

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