Neutrinoless Double Beta Decay and Light Sterile Neutrino

Jang, C. H.; Kim, B. J.; Ko, Young Jin; Kim, Siyeon

doi:10.3938/jkps.73.1625

Cited by 4 publications

(3 citation statements)

References 51 publications

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“…The existence of sterile neutrino with a mass of eV scale has important implications on the neutrinoless double beta (0νββ) decay through the effective neutrino mass. [83][84][85][86][87][88][89][90][91] As is well known, [92][93][94][95] the 0νββ decay violates the lepton number by two units, and naturally happens when…”

Section: Impact Of Light Sterile Neutrino On Neutrinoless Double Beta...mentioning

confidence: 99%

Roles of sterile neutrinos in particle physics and cosmology

Kang

2019

Int. J. Mod. Phys. A

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The impacts of the light sterile neutrino hypothesis in particle physics and cosmology are reviewed. The observed short baseline neutrino anomalies challenging the standard explanation of neutrino oscillations within the framework of three active neutrinos are addressed. It is shown that they can be interpreted as the experimental hints pointing towards the existence of sterile neutrino at the eV scale. While the electron neutrino appearance and disappearance data are in favor of such a sterile neutrino, the muon disappearance data disfavor it, which gives rise to a strong appearance-disappearacne tension. After a brief review on the cosmological effects of light sterile neutrinos, proposed signatures of light sterile neutrinos in the existing cosmological data are discussed. The keV-scale sterile neutrinos as possible dark matter candidates are also discussed by reviewing different mechanisms of how they can be produced in the early Universe and how their properties can be constrained by several cosmological observations. We give an overview of the possibility that keV-scale sterile neutrino can be a good DM candidate and play a key role in achieving low scale leptogenesis simultaneously by introducing a model where an extra light sterile neutrino is added on top of type I seesaw model.

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Section: Impact Of Light Sterile Neutrino On Neutrinoless Double Beta...mentioning

confidence: 99%

Roles of sterile neutrinos in particle physics and cosmology

Kang

2019

Int. J. Mod. Phys. A

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“…This process is suppressed by the proportionality of the transition amplitude to the effective Majorana mass m ββ , which in turn depends on the lowest neutrino mass, neutrino mass ordering, mixing angles, and Majorana phases. However, the predictions for m ββ are known to change substantially in a 3 þ 1 mixing scenario when an additional sterile neutrino is introduced [26][27][28][29][30][31][32][33][34][35]. It is also well known that in the presence of nonstandard interactions (NSI), solar neutrino data admit a new solution for θ 12 > 45°, known as the dark large mixing angle (DLMA) solution [36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Implications of the dark large mixing angle solution and a fourth sterile neutrino for neutrinoless double beta decay

et al. 2020

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We analyze the effect of the dark large mixing angle (DLMA) solution on the effective Majorana mass (m ββ) governing neutrinoless double beta decay (0νββ) in the presence of a sterile neutrino. We consider the 3 þ 1 picture, comprised of one additional sterile neutrino. We check that the Mikheyev-Smirnov-Wolfenstein resonance in the Sun can take place in the DLMA parameter space in this scenario. Next, we investigate how the values of the solar mixing angle θ 12 corresponding to the DLMA region alter the predictions of m ββ by including a sterile neutrino in the analysis. We also compare our results with threegeneration cases for both standard large mixing angle (LMA) and DLMA. Additionally, we evaluate the discovery sensitivity of the future 136 Xe experiments in this context.

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Section: Introductionmentioning

confidence: 99%

Implications of the Dark LMA solution and Fourth Sterile Neutrino for Neutrino-less Double Beta Decay

Deepthi,

Goswami,

et al. 2019

Preprint

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We analyze the effect of the Dark-large mixing angle (DLMA) solution on the effective Majorana mass (m ββ ) governing neutrino-less double beta decay (0νββ) in the presence of a sterile neutrino. We consider the 3+1 picture, comprising of one additional sterile neutrino. We have checked that the MSW resonance in the sun can take place in the DLMA parameter space in this scenario. Next we investigate how the values of the solar mixing angle θ 12 corresponding to the DLMA region alter the predictions of m ββ including a sterile neutrino in the analysis. We also compare our results with three generation cases for both standard large mixing angle (LMA) and DLMA. Additionally, we evaluate the discovery sensitivity of the future 136 Xe experiments in this context.

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Neutrinoless Double Beta Decay and Light Sterile Neutrino

Cited by 4 publications

References 51 publications

Roles of sterile neutrinos in particle physics and cosmology

Roles of sterile neutrinos in particle physics and cosmology

Implications of the dark large mixing angle solution and a fourth sterile neutrino for neutrinoless double beta decay

Implications of the Dark LMA solution and Fourth Sterile Neutrino for Neutrino-less Double Beta Decay

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