Search for Electron Neutrino Appearance at the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Δ</mml:mi><mml:msup><mml:mi>m</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo>∼</mml:mo><mml:mn>1</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:msup><mml:mi>eV</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math>Scale

Aguilar-Arevalo, A. A.; Bazarko, A. O.; Brice, S. J.; Brown, Bruce; Bugel, L.; Cao, Junpeng; Coney, L.; Conrad, J. M.; Cox, D. C.; Curioni, A.; Djurcic, Z.; Finley, D. A.; Fleming, B. T.; Ford, R.; García, F.; Garvey, G. T.; Green, C.; Green, J. A.; Hart, T.; Hawker, E.; Imlay, R.; Johnson, R. A.; Kasper, P. A.; Katori, T.; Kobilarcik, T.; Kourbanis, I.; Koutsoliotas, S.; Laird, E.; Link, J. M.; Liu, Y.; Liu, Y.; Louis, W. C.; Mahn, Kendall; Marsh, W.; Martin, P.S.; McGregor, G.; Metcalf, W.; Meyers, P. D.; Mills, F.; Mills, G. B.; Monroe, J.; Moore, C. D.; Nelson, Robert H.; Nienaber, P.; Ouedraogo, S.; Patterson, R. B.; Perevalov, D.; Polly, C. C.; Prebys, E.; Raaf, J. L.; Ray, H.; Roe, B. P.; Russell, A. D.; Sandberg, V.; Schirato, R.; Schmitz, D.; Shaevitz, M. H.; Shoemaker, F. C.; Smith, D.; Sorel, M.; Spentzouris, P.; Stancu, I.; Stefanski, R. J.; Sung, M.; Tanaka, Hirohisa; Tayloe, R.; Tzanov, M.; Water, R. Van de; Wascko, M. O.; White, D. H.; Wilking, M. J.; Yang, H. J.; Zeller, G. P.; Zimmerman, E. D.

doi:10.1103/physrevlett.98.231801

Cited by 490 publications

(320 citation statements)

References 55 publications

(20 reference statements)

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“…The dominant contributions to these processes arise from tree-level W mediated exchanges (a consequence of the modified vertex W ν due to the presence of the sterile states). As will be discussed in the following section, among the distinct constraints derived from meson decays, the most severe bounds are due to the violation of lepton universality in leptonic kaon decays, parametrised by ∆r K , 5) and whose current value (comparison of theoretical analyses [74,75] with the recent measurements from the NA62 collaboration [68]) is…”

Section: Jhep09(2014)074mentioning

confidence: 99%

“…Extensions of the Standard Model (SM) by sterile neutrinos have received increasing attention in recent years: in addition to their rôle in numerous well motivated scenarios of neutrino mass generation, the existence of sterile neutrinos is suggested by the reactor [1][2][3], accelerator [4][5][6][7] and Gallium anomalies [8,9], as well as by certain indications from large scale structure formation [10,11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of steriles states on lepton magnetic moments and neutrinoless double beta decay

Abada

Romeri

Teixeira

2014

J. High Energ. Phys.

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Abstract:We address the impact of sterile fermion states on the anomalous magnetic moment of charged leptons, as well as their contribution to neutrinoless double beta decays. We illustrate our results in a minimal, effective extension of the Standard Model by one sterile fermion state, and in a well-motivated framework of neutrino mass generation, embedding the Inverse Seesaw into the Standard Model. The simple "3+1" effective case succeeds in alleviating the tension related to the muon anomalous magnetic moment, albeit only at the 3σ level, and for light sterile states (corresponding to a cosmologically disfavoured regime). Interestingly, our analysis shows that a future 0ν2β observation does not necessarily imply an inverted hierarchy for the active neutrinos in this simple extension. Although the Inverse Seesaw realisation here addressed could indeed ease the tension in (g − 2) µ , bounds from lepton universality in kaon decays mostly preclude this from happening. However, these scenarios can also have a strong impact on the interpretation of a future 0ν2β signal regarding the hierarchy of the active neutrino mass spectrum.

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Section: Jhep09(2014)074mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of steriles states on lepton magnetic moments and neutrinoless double beta decay

Abada

Romeri

Teixeira

2014

J. High Energ. Phys.

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“…Other than the above motivation, some of the current neutrino oscillation experiments (reactor [24][25][26], accelerator [27][28][29][30] and Gallium [31,32]) suggest the existence of sterile fermions with masses in the eV range. This would imply that instead of the three-neutrino mixing scheme (in oscillation phenomena), one would have a 3 + 1-neutrino (or 3+more) mixing schemes (see, for instance, [33]).…”

Section: Jhep08(2016)079mentioning

confidence: 99%

Electron electric dipole moment in Inverse Seesaw models

Abada

Toma

2016

J. High Energ. Phys.

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Abstract:We consider the contribution of sterile neutrinos to the electric dipole moment of charged leptons in the most minimal realisation of the Inverse Seesaw mechanism, in which the Standard Model is extended by two right-handed neutrinos and two sterile fermion states. Our study shows that the two pairs of (heavy) pseudo-Dirac mass eigenstates can give significant contributions to the electron electric dipole moment, lying close to future experimental sensitivity if their masses are above the electroweak scale. The major contribution comes from two-loop diagrams with pseudo-Dirac neutrino states running in the loops. In our analysis we further discuss the possibility of having a successful leptogenesis in this framework, compatible with a large electron electric dipole moment.

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“…The LSND result is quite difficult to reconcile with the null results of CDHS [10] and Bugey [11], even when one allows for one or more sterile neutrinos. Recently, MiniBooNE failed to confirm the LSND signal [12]. For an analysis of sterile neutrino solutions to the LSND result in view of the MiniBooNE data see [13].…”

Section: Introductionmentioning

confidence: 99%

On the impact of systematical uncertainties for the CP violation measurement in superbeam experiments

Huber¹,

Mezzetto²,

Schwetz³

2008

J. High Energy Phys.

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Superbeam experiments can, in principle, achieve impressive sensitivities for CP violation in neutrino oscillations for large θ 13 . We study how those sensitivities depend on assumptions about systematical uncertainties. We focus on the second phase of T2K, the so-called T2HK experiment, and we explicitly include a near detector in the analysis. Our main result is that even an idealised near detector cannot remove the dependence on systematical uncertainties completely. Thus additional information is required. We identify certain combinations of uncertainties, which are the key to improve the sensitivity to CP violation, for example the ratio of electron to muon neutrino cross sections and efficiencies. For uncertainties on this ratio larger than 2%, T2HK is systematics dominated. We briefly discuss how our results apply to a possible two far detector configuration, called T2KK. We do not find a significant advantage with respect to the reduction of systematical errors for the measurement of CP violation for this setup.

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Search for Electron Neutrino Appearance at theΔm2∼1 eV2Scale

Cited by 490 publications

References 55 publications

Effect of steriles states on lepton magnetic moments and neutrinoless double beta decay

Effect of steriles states on lepton magnetic moments and neutrinoless double beta decay

Electron electric dipole moment in Inverse Seesaw models

On the impact of systematical uncertainties for the CP violation measurement in superbeam experiments

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