Determining the neutrino mass with cyclotron radiation emission spectroscopy—Project 8

Esfahani, A. Ashtari; Asner, D. M.; Böser, S.; Cervantes, R.; Claessens, C.; Viveiros, L. de; Doe, P. J.; Doeleman, S.; Fernandes, Justin L.; Fertl, M.; Finn, Erin C.; Formaggio, J. A.; Furse, D.; Guigue, M.; Heeger, K. M.; Jones, Andrew; Kazkaz, K.; Kofron, J.; Lamb, Callum; LaRoque, B. H.; Machado, E.; McBride, E. L.; Miller, Michael L.; Monreal, B.; Mohanmurthy, Prajwal; Nikkel, J.; Oblath, N. S.; Pettus, W.; Robertson, R. G. H.; Rosenberg, L.; Rybka, G.; Rysewyk, D.; Saldaña, L.; Slocum, P. L.; Sternberg, M.; Tedeschi, Jonathan R.; Thümmler, T.; VanDevender, B. A.; Vertatschitsch, Laura; Wachtendonk, M.; Weintroub, Jonathan; Woods, N.; Young, Anthony; Zayas, E.

doi:10.1088/1361-6471/aa5b4f

Cited by 127 publications

(131 citation statements)

References 20 publications

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“…The results obtained in the previous Section have implications for the discovery potential of β-decay searches, such as the experiment KATRIN [105][106][107], designed to probe the range m β > ∼ 0.2 eV, or future projects, envisaged to reach potential sensitivities at or below 0.1 eV [20,108,109]. For the sake of brevity, we consider only the case of global fit in any ordering and for two representative cosmological data sets, namely, #10 and #6 in Table II, that lead to conservative and aggressive bounds on Σ, respectively.…”

Section: Implications For M βmentioning

confidence: 99%

“…Indeed, in the (Σ, m β ) plane, the two allowed branches for NO and IO are completely disconnected and could, in principle, be conclusively discriminated via precise measurements of Σ and m β . Unfortunately, the values of m β required by such test are entirely below the KATRIN sensitivity [105] but, in the long term, they could be partly probed by planned or envisaged experimental projects [20,108,109]. …”

Section: Implications For M βmentioning

confidence: 99%

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Global constraints on absolute neutrino masses and their ordering

et al. 2017

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Within the standard three-neutrino framework, the absolute neutrino masses and their ordering (either normal, NO, or inverted, IO) are currently unknown. However, the combination of current data coming from oscillation experiments, neutrinoless double beta (0νββ) decay searches, and cosmological surveys, can provide interesting constraints for such unknowns in the sub-eV mass range, down to O(10 −1 ) eV in some cases. We discuss current limits on absolute neutrino mass observables by performing a global data analysis, that includes the latest results from oscillation experiments, 0νββ decay bounds from the KamLAND-Zen experiment, and constraints from representative combinations of Planck measurements and other cosmological data sets. In general, NO appears to be somewhat favored with respect to IO at the level of ∼ 2σ, mainly by neutrino oscillation data (especially atmospheric), corroborated by cosmological data in some cases. Detailed constraints are obtained via the χ 2 method, by expanding the parameter space either around separate minima in NO and IO, or around the absolute minimum in any ordering. Implications for upcoming oscillation and non-oscillation neutrino experiments, including β-decay searches, are also discussed.

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Section: Implications For M βmentioning

confidence: 99%

Section: Implications For M βmentioning

confidence: 99%

Global constraints on absolute neutrino masses and their ordering

et al. 2017

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“…It will soon start operation and might falsify low-scale leptogenesis in the scotogenic model, if it should find evidence for a lightest active neutrino mass close to its design sensitivity, m l ∼ 0.2 eV. Similarly, the PROJECT 8 Collaboration is currently pioneering the development of a next-generation tritium end-point experiment based on the detection of single-electron cyclotron radiation [73]. Once fully developed into a neutrino mass experiment, this approach will allow to probe the entire active neutrino mass range down to m l → 0 in the case of an inverted mass hierarchy.…”

Section: B Numerical Insightsmentioning

confidence: 99%

Low-scale leptogenesis in the scotogenic neutrino mass model

2018

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The scotogenic model proposed by Ernest Ma represents an attractive and minimal example for the generation of small Standard Model neutrino masses via radiative corrections in the dark matter sector. In this paper, we demonstrate that, in addition to neutrino masses and dark matter, the scotogenic model also allows to explain the baryon asymmetry of the Universe via low-scale leptogenesis. First, we consider the case of two right-handed neutrinos (RHNs) N 1;2 , for which we provide an analytical argument why it is impossible to push the RHN mass scale below M min 1 ∼ 10 10 GeV, which is identical to the value in standard thermal leptogenesis in the type-I seesaw scenario with the same washout strength. Then, we present a detailed study of the three-RHN case based on both an analytical and a numerical analysis. In the case of three RHNs, we obtain a lower bound on the N 1 mass of around 10 TeV. Remarkably enough, successful low-scale leptogenesis can be achieved without any degeneracy in the RHN mass spectrum. The only necessary condition is a suppression in the N 1 Yukawa couplings, which results in suppressed washout and a small active neutrino mass of around 10 −12 eV. This leads to the fascinating realization that low-scale leptogenesis in the scotogenic model can be tested in experiments that aim at measuring the absolute neutrino mass scale.

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“…Future prospects are represented by the possibility of calorimetric measurements of 136 Ho (HOLMES experiment [171]) and measurements of the 3 H decay spectrum via relativistic shift in the cyclotron frequency of the electrons emitted in the decay (Project8 experiment 22 [172]). Although the bounds coming from β-decay experiments are very loose compared to bounds from cosmology, nevertheless they are appealing for the reason that they represent model-independent constraints on the neutrino mass scale, only relying on kinematic measurements.…”

Section: Complementarity With Laboratory Searchesmentioning

confidence: 99%

Status of Neutrino Properties and Future Prospects—Cosmological and Astrophysical Constraints

2018

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Cosmological observations are a powerful probe of neutrino properties, and in particular of their mass. In this review, we first discuss the role of neutrinos in shaping the cosmological evolution at both the background and perturbation level, and describe their effects on cosmological observables such as the cosmic microwave background and the distribution of matter at large scale. We then present the state of the art concerning the constraints on neutrino masses from those observables, and also review the prospects for future experiments. We also briefly discuss the prospects for determining the neutrino hierarchy from cosmology, the complementarity with laboratory experiments, and the constraints on neutrino properties beyond their mass.

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Determining the neutrino mass with cyclotron radiation emission spectroscopy—Project 8

Cited by 127 publications

References 20 publications

Global constraints on absolute neutrino masses and their ordering

Global constraints on absolute neutrino masses and their ordering

Low-scale leptogenesis in the scotogenic neutrino mass model

Status of Neutrino Properties and Future Prospects—Cosmological and Astrophysical Constraints

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