Sensitivities and synergies of DUNE and T2HK

Ballett, P.; King, Stephen F.; Pascoli, Silvia; Prouse, N. W.; Wang, Tse-Chun

doi:10.1103/physrevd.96.033003

Cited by 56 publications

(48 citation statements)

References 83 publications

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“…Both LSA and LSB allow good fits of current data [74] as seen in Figure 8. The intersection of the accurately measured reactor angle one sigma band (in red) with the accurarely measured mass ratio one sigma band (in green) is instrumental in determining the model parameters η and m b /m a .…”

Section: The Littlest Seesawmentioning

confidence: 89%

“…We use the 2 data provided by NuFIT, for the case where normal mass ordering is assumed, combining both the 1D 2 data for each mixing parameter with the 2D 2 data to include correlations between parameter measurements There is a mild tension at the one sigma level with the atmospheric and solar angles. This figure is adapted from [74]. zero neutrino mass m 1 = 0, yielding the TM 1 mixing form as in Eq.18.…”

Section: Fitting Ls Models To Global Fit Datamentioning

confidence: 99%

“…This type of input is very important to the experimental community and it can be fully addressed within a particular model such as the Littlest Seesaw. Indeed the prospects for excluding LSA and LSB in future neutrino oscillation experiments have recently been analysed [74], and we shall briefly review the results of that study. We should say at the outset that one way to exclude the LS models is via its prediction of a NO mass spectrum with m 1 = 0.…”

Section: Precision Neutrino Experiments Vs the Littlest Seesawmentioning

confidence: 99%

“…The lower horizontal grey line shows the possible 3σ exclusions for each parameter. This figure is adapted from [74].…”

Section: Precision Neutrino Experiments Vs the Littlest Seesawmentioning

confidence: 99%

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Unified models of neutrinos, flavour andCPViolation

King

2017

Progress in Particle and Nuclear Physics

227

164

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Recent data from neutrino experiments gives intriguing hints about the mass ordering, the CP violating phase and non-maximal atmospheric mixing. There seems to be a (one sigma) preference for a normal ordered (NO) neutrino mass pattern, with a CP phase δ = −100 • ± 50 • , and (more significantly) non-maximal atmospheric mixing. Global fits for the NO case yield lepton mixing angle one sigma ranges:Cosmology gives a limit on the total of the three masses to be below about 0.23 eV, favouring hierarchical neutrino masses over quasi-degenerate masses. Given such experimental advances, it seems an opportune moment to review the theoretical status of attempts to explain such a pattern of neutrino masses and lepton mixing, focussing on approaches based on the four pillars of: predictivity, minimality, robustness and unification. Predictivity can result from various mixing sum rules whose status is reviewed. Minimality can follow from the type I seesaw mechanism, including constrained sequential dominance of right-handed (RH) neutrinos, and the littlest seesaw model. Robustness requires enforcing a discrete CP and non-Abelian family symmetry, spontaneously broken by flavons with the symmetry preserved in a semi-direct way. Unification can account for all lepton and quark masses, mixing angles and CP phases, as in Supersymmetric Grand Unified Theories of Flavour, with possible string theory origin.

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Section: The Littlest Seesawmentioning

confidence: 89%

Section: Fitting Ls Models To Global Fit Datamentioning

confidence: 99%

Section: Precision Neutrino Experiments Vs the Littlest Seesawmentioning

confidence: 99%

“…The lower horizontal grey line shows the possible 3σ exclusions for each parameter. This figure is adapted from [74].…”

Section: Precision Neutrino Experiments Vs the Littlest Seesawmentioning

confidence: 99%

See 2 more Smart Citations

Unified models of neutrinos, flavour andCPViolation

King

2017

Progress in Particle and Nuclear Physics

227

164

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“…The proposed long-baseline neutrino experiment using the Hyper-Kamiokande detector and a powerful neutrino beam from the J-PARC proton synchrotron (commonly known as T2HK experiment) is one of the major candidates in the future neutrino road-map to attain the discovery for the above mentioned issues [33][34][35][36][37][38][39][40][41][42]. This superbeam facility heavily relies on the data from both ν µ → ν e andν µ →ν e channels to measure CP-violation 3 (CPV).…”

Section: Jhep05(2017)115mentioning

confidence: 99%

A hybrid setup for fundamental unknowns in neutrino oscillations using T2HK (ν) and μ-DAR ν ¯ $$ \left(\overline{\nu}\right) $$

Agarwalla¹,

Ghosh²,

Raut³

2017

J. High Energ. Phys.

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Neutrino mass hierarchy, CP-violation, and octant of θ 23 are the fundamental unknowns in neutrino oscillations. In order to address all these three unknowns, we study the physics reach of a setup, where we replace the antineutrino run of T2HK with antineutrinos from muon decay at rest (µ-DAR). This approach has the advantages of having higher statistics in both neutrino and antineutrino modes, and lower beam-on backgrounds for antineutrino run with reduced systematics. We find that a hybrid setup consisting of T2HK (ν) and µ-DAR (ν) in conjunction with full exposure from T2K and NOνA can resolve the issue of mass hierarchy at greater than 3σ C.L. irrespective of the choices of hierarchy, δ CP , and θ 23 . This hybrid setup can also establish the CP-violation at 5σ C.L. for ∼ 55% choices of δ CP , whereas the same for conventional T2HK (ν +ν) setup along with T2K and NOνA is around 30%. As far as the octant of θ 23 is concerned, this hybrid setup can exclude the wrong octant at 5σ C.L. if θ 23 is at least 3 • away from maximal mixing for any δ CP .

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Imprints of scalar NSI on the CP-violation sensitivity using synergy among DUNE, T2HK and T2HKK

Medhi

Devi

Dutta

2023

J. High Energ. Phys.

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The Non-Standard Interactions (NSIs) are subdominant effects, often appearing in various extensions of SM, which may impact the neutrino oscillations through matter. It is important and interesting to explore the impact of NSIs in the ongoing and upcoming precise neutrino oscillations experiments. In this work, we have studied the imprints of a scalar-mediated NSI in three upcoming long-baseline (LBL) experiments (DUNE, T2HK and T2HKK). The effects of scalar NSI appears as a medium-dependent correction to the neutrino mass term. Its contribution scales linearly with matter density, making LBL experiments a suitable candidate to probe its effects. We show that the scalar NSI may significantly impact the oscillation probabilities, event rates at the detectors and the χ2-sensitivities of δCP measurements. We present the results of a combined analysis involving the LBL experiments (DUNE+T2HK or DUNE+T2HKK) which offer a better capability of constraining the scalar NSI parameters as well as an improved sensitivity towards CP-violation.

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Sensitivities and synergies of DUNE and T2HK

Cited by 56 publications

References 83 publications

Unified models of neutrinos, flavour andCPViolation

Unified models of neutrinos, flavour andCPViolation

A hybrid setup for fundamental unknowns in neutrino oscillations using T2HK (ν) and μ-DAR ν ¯ $$ \left(\overline{\nu}\right) $$

Imprints of scalar NSI on the CP-violation sensitivity using synergy among DUNE, T2HK and T2HKK

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