The unfinished fabric of the three neutrino paradigm

Capozzi, Francesco; Valentino, Eleonora Di; Lisi, E.; Marrone, A.; Melchiorri, A.; Palazzo, A.

doi:10.48550/arxiv.2107.00532

Cited by 23 publications

(81 citation statements)

References 70 publications

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“…This is further confirmed by the latest NuFIT 5.0 [25] result 1 , as well as a more recent fit obtained in Ref. [26]. However, the true value of δ CP is still unknown, and this ambiguity partly allows earlier analyses of TBM variants to take δ CP as a prediction rather than a constraint [16,18,[27][28][29][30][31].…”

Section: Introductionsupporting

confidence: 66%

“…It can be expected that, if future data favors a δ CP with a smaller interval of sin δ CP > 0 in the NO spectrum, these tiny bands in the TBM 1 pattern will shrink or even vanish. As a comparison to the NuFIT 5.0 result, we have checked that, the small regions in TBM 1 pattern vanish under Capozzi 2021 [26].…”

Section: The Sign Of Leptonic Cp Violationmentioning

confidence: 85%

“…We depict in Fig. 1 the δ CP results obtained from T2K measurement [21] and the global fits obtained from 2018 to present day [22][23][24][25][26]. It is seen that, for the NO spectrum, only a small interval allows sin δ CP > 0 within the 3σ uncertainty, while for the IO, sin δ CP < 0 is persistently obtained even up to 3σ uncertainty.…”

Section: The Sign Of Leptonic Cp Violationmentioning

confidence: 90%

“…4 would shrink. For example, the region of (0.176 α 0.192, 5.2 ϕ 5.8) may vanish if the interval of sin δ CP > 0 is smaller than Capozzi 2021 [26]. It is worth mentioning that, the current status of sin δ CP > 0 is the crucial function that renders the BAU criterion from Ref.…”

Section: Yukawa Texture-independent Bau As a Criterionmentioning

confidence: 98%

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Next-to-tribimaximal mixing against CP violation and baryon asymmetry signs

Li,

Yan,

Zhang

2022

Preprint

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Four next-to-tribimaximal (NTBM) mixing patterns are widely considered as the feasible candidates for the observed leptonic mixing structure. With the recent measurements from T2K, as well as intensive global fits, the interval of sin δCP > 0 for the Dirac CP-violating phase is persistently small in the normal ordering while no room for sin δCP > 0 exists in the inverted ordering. We show that, the sign of leptonic CP violation can rule out half of the regions allowed by the three mixing angles, and in the survived regions, all the four NTBM patterns cannot reproduce the current data within 1σ uncertainty. Moreover, given the small sin δCP > 0 interval, we find that a unique NTBM pattern can be selected out of the four candidates within 3σ uncertainty, when exposed to a Yukawa texture-independent leptogenesis for the baryon asymmetry of the Universe.

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Section: Introductionsupporting

confidence: 66%

Section: The Sign Of Leptonic Cp Violationmentioning

confidence: 85%

Section: The Sign Of Leptonic Cp Violationmentioning

confidence: 90%

Section: Yukawa Texture-independent Bau As a Criterionmentioning

confidence: 98%

See 2 more Smart Citations

Next-to-tribimaximal mixing against CP violation and baryon asymmetry signs

Li,

Yan,

Zhang

2022

Preprint

View full text Add to dashboard Cite

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“…It is optimistically expected that the next-generation 0ν2β experiments might be able to probe the IMO possibility of massive neutrinos if their sensitivities to the half-lives of the decaying isotopes (such as 76 32 Ge, 136 54 Xe and 130 52 Te) can finally reach the level of 10 27 or even 10 28 years [20,21]. But a global analysis of today's neutrino oscillation data indicates that the NMO possibility seems to be slightly favored [22]. The next-generation neutrino oscillation experiments, especially JUNO, DUNE and Hyper-Kamiokande [1] will determine the neutrino mass ordering and thus greatly reduce the uncertainties of | m αβ | under discussion.…”

Section: The Bounds Of | M Ee |mentioning

confidence: 99%

3D mapping of the effective Majorana neutrino masses with neutrino oscillation data

Hu,

Xing

2021

Preprint

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With the help of current neutrino oscillation data, we illustrate the three-dimensional (3D) profiles of all the six distinct effective Majorana neutrino masses | m αβ | (for α, β = e, µ, τ ) with respect to the unknown neutrino mass scale and effective Majorana CP phases. Some salient features of | m αβ | and their phenomenological implications are discussed in both the normal and inverted neutrino mass ordering cases.

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Probing light mediators in the radiative emission of neutrino pair

Pasquini

2022

Eur. Phys. J. C

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We propose a new possibility of using the coherently enhanced neutrino pair emission to probe light-mediator interactions between electron and neutrinos. With typical momentum transfer at the atomic $$\mathcal O(1$$ O ( 1 eV) scale, this process is extremely sensitive for the mediator mass range $$\mathcal O(10^{-3} \sim 10^4$$ O ( 10 - 3 ∼ 10 4 ) eV. The sensitivity on the product of couplings with electron ($$g^e$$ g e or $$y^e$$ y e ) and neutrinos ($$g^\nu $$ g ν or $$y^\nu $$ y ν ) can touch down to $$|y^e y^\nu | < 10^{-9} \sim 10^{-19}$$ | y e y ν | < 10 - 9 ∼ 10 - 19 for a scalar mediator and $$|g^e g^\nu | < 10^{-15} \sim 10^{-26}$$ | g e g ν | < 10 - 15 ∼ 10 - 26 for a vector one, with orders of improvement from the existing constraints.

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The unfinished fabric of the three neutrino paradigm

Cited by 23 publications

References 70 publications

Next-to-tribimaximal mixing against CP violation and baryon asymmetry signs

Next-to-tribimaximal mixing against CP violation and baryon asymmetry signs

3D mapping of the effective Majorana neutrino masses with neutrino oscillation data

Probing light mediators in the radiative emission of neutrino pair

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