A comprehensive study of the discovery potential of NOvA, T2K and T2HK experiments

Soumya, C.; Deepthi, K. N.; Mohanta, Rukmani

doi:10.48550/arxiv.1408.6071

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such a curve is obtained by marginalizing the test value of δ 13 in the range [−π, π] and θ 23 (test) within the 3σ range allowed by the global analyses [28][29][30]. Although such a 3-flavor MH sensitivity curve has been already shown in several previous works [17,38,[51][52][53][54][55][56][57][58], its behavior deserves some clarification. In fact, on the basis of the bivents plot on the left panel one would expect maximal sensitivity for δ 13 = −90 0 , since the distance of the representative point on the (solid) NH ellipse (right lower point) has maximal distance from the IH ellipse.…”

Section: Methodsmentioning

confidence: 97%

Signatures of a light sterile neutrino in T2HK

Agarwalla

Chatterjee

Palazzo

2018

J. High Energ. Phys.

View full text Add to dashboard Cite

We investigate the performance of T2HK in the presence of a light eV scale sterile neutrino. We study in detail its influence in resolving fundamental issues like mass hierarchy, CP-violation (CPV) induced by the standard CP-phase δ 13 and new CP-phase δ 14 , and the octant ambiguity of θ 23 . We show for the first time in detail that due to the impressive energy reconstruction capabilities of T2HK, the available spectral information plays an important role to enhance the mass hierarchy discovery reach of this experiment in 3ν framework and also to keep it almost intact even in 4ν scheme. This feature is also of the utmost importance in establishing the CPV due to δ 14 . As far as the sensitivity to CPV due to δ 13 is concerned, it does not change much going from 3ν to 4ν case. We also examine the reconstruction capability of the two phases δ 13 and δ 14 , and find that the typical 1σ uncertainty on δ 13 (δ 14 ) in T2HK is ∼ 15 0 (30 0 ). While determining the octant of θ 23 , we face a complete loss of sensitivity for unfavorable combinations of unknown δ 13 and δ 14 .

show abstract

Section: Methodsmentioning

confidence: 97%

Signatures of a light sterile neutrino in T2HK

Agarwalla

Chatterjee

Palazzo

2018

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…This will be shown to follow from all nonzero perturbation matrix elements being taken to be of the same order of magnitude. Of course, the neglected O( 2) terms are estimated to be only at a 2-3% level which is below [29,30] the accuracy of the measurement of TBM deviants in ongoing and forthcoming neutrino oscillation experiments 3 .…”

Section: Broken Tribimaximal Mixing and Its Effectsmentioning

confidence: 87%

Testable constraint on near-tribimaximal neutrino mixing

Brahmachari

Roy

2015

J. High Energ. Phys.

View full text Add to dashboard Cite

General lowest order perturbations to hermitian squared mass matrices of leptons are considered away from the tribimaximal (TBM) limit in which a weak flavor basis with mass diagonal charged leptons is chosen. The three measurable TBM deviants are expressed linearly in terms of perturbation induced dimensionless coefficients appearing in the charged lepton and neutrino flavor eigenstates. With unnatural cancellations assumed to be absent and the charged lepton perturbation contributions to their flavor eigenstates argued to be small, we analytically derive the following result. Within lowest order perturbations, a deviation from maximal atmospheric neutrino mixing and the amount of CP violation in neutrino oscillations cannot both be large (i.e. 12-17%), posing the challenge of verification to forthcoming experiments at the intensity frontier.

show abstract

“…The motivation of this alternative idea is to have excellent CP sensitivity coming from the detector at 295 km due to large statistics and at the same time obtain enhanced hierarchy sensitivity coming from the detector at 1100 km due to large matter effect. In the last few years there are several studies exploring the idea of T2HK and T2HKK in terms of the standard three flavour scenario [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. In this paper, we consider the idea of taking a variable detector volume for the T2HKK setup.…”

Section: Introductionmentioning

confidence: 99%

On the optimal detector volume of T2HKK

Panda¹,

Ghosh²,

Mishra³

et al. 2022

Preprint

View full text Add to dashboard Cite

T2HK is an upcoming long-baseline experiment in Japan which will have two water Cherenkov detector tanks of 187 kt volume each at distance of 295 km from the source. An alternative project, T2HKK is also under consideration where one of the water tanks will be moved to Korea at a distance of 1100 km. The flux at 295 km will cover the first oscillation maximum and the flux at 1100 km will mainly cover the second oscillation maximum. As physics sensitivity at the dual baseline rely on variation in statistics, dependence of systematic uncertainty, effect of second oscillation maximum and matter density, 187 kt detector volume at 295 km and 187 kt detector volume at 1100 km may not be the optimal configuration of T2HKK. Therefore in this work we have tried to optimize the ratio of the detector volume at both the locations by studying the interplay between the above mentioned parameters. For the analysis of neutrino mass hierarchy, octant of θ 23 and CP precision, we have considered two values of δ CP as 270 • and 0 • and for CP violation we have considered the value of δ CP = 270 • . These values are motivated by the current best-fit values of this parameter as obtained from the experiments T2K and NOνA. Interestingly we find that if the systematic uncertainty is negligible then the T2HK setup i.e., when both the detector tanks are placed at 295 km gives the best results in terms of hierarchy sensitivity at δ CP = 270 • , octant sensitivity, CP violation sensitivity and CP precision sensitivity at δ CP = 0 • . For current values of systematic errors, we find that neither T2HK, nor T2HKK setup is giving better results for hierarchy, CP violation and CP precision sensitivity. The optimal detector volume which is of the range between 255 kt to 345 kt at 1100 km gives better results in those above mentioned parameters.

show abstract

A comprehensive study of the discovery potential of NOvA, T2K and T2HK experiments

Cited by 3 publications

References 0 publications

Signatures of a light sterile neutrino in T2HK

Signatures of a light sterile neutrino in T2HK

Testable constraint on near-tribimaximal neutrino mixing

On the optimal detector volume of T2HKK

Contact Info

Product

Resources

About