scholarly journals Degeneracy Resolution Capabilities of NOνA and DUNE in the Presence of Light Sterile Neutrino

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Akshay Chatla ◽  
Sahithi Rudrabhatla ◽  
Bindu A. Bambah
Keyword(s):  
Sterile Neutrino ◽  
The Other ◽  
Normal Hierarchy ◽  
Inverted Hierarchy ◽  
Combined Analysis ◽  
Physics Potential ◽  
Best Fit ◽  
Preferred Solutions

We investigate the implications of a sterile neutrino on the physics potential of the proposed experiment DUNE and future runs of NOνA using latest NOνA results. Using combined analysis of the disappearance and appearance data, NOνA reported preferred solutions at normal hierarchy (NH) with two degenerate best-fit points: one in the lower octant (LO) and δ13 = 1.48π and the other in higher octant (HO) and δ13 = 0.74π. Another solution of inverted hierarchy (IH), which is 0.46σ away from best fit, was also reported. We discuss chances of resolving these degeneracies in the presence of sterile neutrino.

scholarly journals Searching for non-unitary neutrino oscillations in the present T2K and NO$$\nu $$A data

2021 ◽  
Vol 81 (5) ◽  
Author(s):  
Luis Salvador Miranda ◽  
Pedro Pasquini ◽  
Ushak Rahaman ◽  
Soebur Razzaque
Keyword(s):  
The Other ◽  
Combined Analysis ◽  
Mixing Parameters ◽  
Active Neutrino ◽  
Mixing Matrix ◽  
Mixing Schemes ◽  
Pmns Matrix ◽  
Best Fit ◽  
Unitary Analysis ◽  
Rule Out

AbstractThe mixing of three active neutrino flavors is parameterized by the unitary PMNS matrix. If there are more than three neutrino flavors and if the extra generations are heavy iso-singlets, the effective $$3\times 3$$ 3 × 3 mixing matrix for the three active neutrinos will be non-unitary. We have analyzed the latest T2K and NO$$\nu $$ ν A data with the hypothesis of non-unitary mixing of the active neutrinos. We found that the 2019 NO$$\nu $$ ν A data slightly (at $$\sim 1\, \sigma $$ ∼ 1 σ CL) prefer the non-unitary mixing over unitary mixing. In fact, allowing the non-unitary mixing brings the NO$$\nu $$ ν A best-fit point in the $$\sin ^2{\theta _{23}}-\delta _{\mathrm {CP}}$$ sin 2 θ 23 - δ CP plane closer to the T2K best-fit point. The 2019 T2K data, on the other hand, cannot rule out any of the two mixing schemes. A combined analysis of the NO$$\nu $$ ν A and T2K 2019 data prefers the non-unitary mixing at $$1\, \sigma $$ 1 σ CL. We derive constraints on the non-unitary mixing parameters using the best-fit to the combined NO$$\nu $$ ν A and T2K data. These constraints are weaker than previously found. The latest 2020 data from both the experiments prefer non-unitarity over unitary mixing at $$1\, \sigma $$ 1 σ CL. The combined analysis prefers non-unitarity at $$2\, \sigma $$ 2 σ CL. The stronger tension, which exists between the latest 2020 data of the two experiments, also gets reduced with non-unitary analysis.

scholarly journals Predicting CP violation in deviation from tri-bimaximal mixing of neutrinos

2015 ◽  
Vol 30 (01) ◽  
pp. 1550002 ◽  
Author(s):  
Yusuke Shimizu ◽  
Morimitsu Tanimoto ◽  
Kei Yamamoto
Keyword(s):  
Cp Violation ◽  
The Other ◽  
Cabibbo Angle ◽  
Normal Hierarchy ◽  
Inverted Hierarchy ◽  
Mixing Angles ◽  
Lepton Flavor ◽  
Flavor Mixing ◽  
Mixing Patterns ◽  
Charged Leptons

We study the CP violation in the deviation from the tri-bimaximal (TBM) mixing of neutrinos. We examine nontrivial relations among the mixing angles and the CP violating Dirac phase in the typical four cases of the deviation from the TBM. The first two cases are derived by the additional rotation of the 2-3 or 1-3 generations of neutrinos in the TBM basis. The other two cases are given by the additional rotation of the 1-3 or 1-2 generations of charged leptons with the TBM neutrinos. These four cases predict different relations among three mixing angles and the CP violating Dirac phase. The rotation of the 2-3 generations of neutrinos in the TBM basis predicts sin2θ12< 1/3, and the CP violating Dirac phase to be ±(0.09π–0.76π) for NH (±(0.15π–0.73π) for IH) depending on sin2θ23. The rotation of the 1-3 generations of neutrinos in the TBM basis gives sin2θ12> 1/3. The CP violating Dirac phase is not constrained by the input of the present experimental data. For the case of the 1-3 and 1-2 rotations of charged leptons in the TBM basis, the CP violating Dirac phase is predicted in ±(0.35π–0.60π) depending on sin2θ12for both normal hierarchy (NH) and inverted hierarchy (IH) cases. We also discuss the specific case that θ13is related with the Cabibbo angle λ such as [Formula: see text], in which the maximal CP violation is preferred. The CP violating Dirac phase can distinguish the lepton flavor mixing patterns at T2K and NOνA experiments in the future.

scholarly journals Physics potential of ESSνSB in the presence of a light sterile neutrino

2019 ◽  
Vol 2019 (12) ◽  
Author(s):  
Sanjib Kumar Agarwalla ◽  
Sabya Sachi Chatterjee ◽  
Antonio Palazzo
Keyword(s):  
Sterile Neutrino ◽  
Physics Potential

scholarly journals Investigation of the Biological Treatability of Pistachio Processing Industry Wastewaters in a Batch-operated Aerobic Bioreactor

2021 ◽  
Author(s):  
Sevtap Tırınk ◽  
Alper Nuhoğlu ◽  
Sinan Kul
Keyword(s):  
Kinetic Parameters ◽  
Growth Rates ◽  
Specific Growth ◽  
Batch Reactor ◽  
The Other ◽  
Batch Experiments ◽  
Processing Industry ◽  
Specific Growth Rates ◽  
Biological Treatability ◽  
Best Fit

Abstract This study encompasses investigation of treatment of pistachio processing industry wastewaters in a batch reactor under aerobic conditions, calculation of kinetic parameters and comparison of different inhibition models. The mixed microorganism culture used in the study was adapted to pistachio processing industry wastewaters for nearly one month and then concentrations from 50-1000 mg L− 1 of pistachio processing industry wastewaters were added to the medium and treatment was investigated in batch experiments. The Andrews, Han-Levenspiel, Luong and Aiba biokinetic equations were chosen for the correlations between the concentration of pistachio processing industry wastewaters and specific growth rates, and the kinetic parameters in these biokinetic equations were calculated. The µmax, Ks and Ki parameters, included in the Aiba biokinetic equation providing best fit among the other equations, had values calculated as 0.25 h− 1, 19 mg L− 1, and 516 mg L− 1, respectively.

Characterization of Microstructure and Crystallographic Texture of Silicate and Phyllosilicate Ceramics

2010 ◽  
Vol 68 ◽  
pp. 13-22 ◽  
Author(s):  
Daniel Chateigner ◽  
Philippe Blanchart ◽  
Sarah Deniel ◽  
Luca Lutterotti ◽  
Hans Rudolf Wenk
Keyword(s):  
Amorphous Silica ◽  
Crystallographic Texture ◽  
The Other ◽  
Uniaxial Pressure ◽  
Composite Ceramics ◽  
Combined Analysis ◽  
X Ray ◽  
Cell Parameters ◽  
Fibre Texture

We illustrate the x-ray Combined Analysis approach capabilities in characterizing silicates and phyllosilicates for samples exhibiting crystallographic textures. Two mullite composite ceramics, one elaborated under uniaxial pressure the other under centrifugation, and one uniaxially pressed montmorillonite aggregate, are studied in terms of texture, cell parameters and phase contents. Several weak texture components are present in the mullite samples, combinations of planar- and fibre-like textures. The methodology is able to take account of the amorphous silica-like matrix of the composite, and cell parameters and structure of mullite correspond to the commonly modelled used for this phase. The montmorillonite turbostratic phase is correctly reproduced with its fibre texture, eventhough minor phases are also present and modelled in the aggregate.

A RESOURCE-INDEPENDENT METHOD TO DELIVER AUGMENTED REALITY CONTENT

2015 ◽  
Vol 75 (2) ◽  
Author(s):  
Syazani Suhaifi ◽  
Junaidi Abdullah ◽  
Ku Day Chyi
Keyword(s):  
Augmented Reality ◽  
3D Model ◽  
Web Server ◽  
Independent Method ◽  
The Other ◽  
Qr Code ◽  
Qr Codes ◽  
Local Storage ◽  
Best Fit ◽  
Local Machine

Marker Based Augmented Reality requires files and resources that have to be loaded from storage such as a local machine or a web server. We proposed a resource-independent method of transmitting AR content by encoding resources such as 3D model files as QR code and using the QR code itself as the marker. The AR system does not need any online and local storage. We processed the content to best fit it into the QR code. Larger contents are then split to multiple QR codes and the data is joined together by the application on the other end.

scholarly journals Determination of mass hierarchy with νμ → ντ appearance and the effect of nonstandard interactions

2017 ◽  
Vol 32 (11) ◽  
pp. 1750060 ◽  
Author(s):  
Ahmed Rashed ◽  
Alakabha Datta
Keyword(s):  
Asymmetry Parameter ◽  
Transition Probabilities ◽  
New Physics ◽  
Mass Hierarchy ◽  
Normal Hierarchy ◽  
Inverted Hierarchy ◽  
Leptonic Sector ◽  
The Asymmetry ◽  
The Difference

Crucial developments in neutrino physics would be the determination of the mass hierarchy (MH) and measurement of the CP phase in the leptonic sector. The patterns of the transition probabilities [Formula: see text] and [Formula: see text] are sensitive to these oscillation parameters. An asymmetry parameter can be defined as the difference of these two probabilities normalized to their sum. The profile of the asymmetry parameter gives a clear signal of the mass ordering as it is found to be positive for inverted hierarchy and negative for normal hierarchy. The asymmetry parameter is also sensitive to the CP phase. We consider the effects of nonstandard neutrino interactions (NSI) on the determination of the mass hierarchy. Since we assume the largest new physics effects involve the [Formula: see text] sector only, we ignore NSI in production and study the NSI effects in detection as well as along propagation. We find that the NSI effects can significantly modify the prediction of the asymmetry parameter though the MH can still be resolved.

scholarly journals Comparison of eight degree-days estimation methods in four agroecological regions in Colombia

Bragantia ◽  
2012 ◽  
Vol 71 (2) ◽  
pp. 299-307 ◽  
Author(s):  
Daniel Rodríguez Caicedo ◽  
Jose Miguel Cotes Torres ◽  
José Ricardo Cure
Keyword(s):  
Linear Regression ◽  
Standard Method ◽  
The Other ◽  
Estimation Methods ◽  
Reference Standard ◽  
Degree Days ◽  
Hourly Temperature ◽  
Simple Logistic ◽  
Santa Elena ◽  
Best Fit

Eight methods were used to estimate degree-days in four Colombian localities. Four methods have been previously proposed in literature: Simple Sine, Double Sine, Simple Triangle, and Double Triangle methods. The other four methods are proposed in this research: Simple Logistic, Double Logistic, Simple Normal, and Double Normal. The estimation of the degree-days through hourly temperature values was used as the reference standard method, and the four localities from where the temperature values were taken were the municipalities of Cajicá (Cundinamarca), Santa Elena (Antioquia), Carepa (Urabá Antioqueño), and Ciudad Bolivar (Zona cafetera Antioqueña). Degree-days obtained by all methods under study were compared through linear regression to those obtained by the reference standard method. There were differences in the correlation of each method to the reference when compared within each region and among regions. The Simple Logistic and Double Logistic methods showed the best performance with acceptable R² values and considerably lower bias than the other methods. The poorest fit was found in Cajicá, where the average R² was 0.571. For the regions of Santa Elena and Carepa, the average R² was 0.756 and 0.733. The best fit was found in Ciudad Bolivar, with an average R² of 0.826.

A Comparison of Five Curve-Fitting Procedures in Radioimmunoassay

1986 ◽  
Vol 23 (6) ◽  
pp. 694-698 ◽  
Author(s):  
Jennifer A Nisbet ◽  
J A Owen ◽  
Gail E Ward
Keyword(s):  
Binding Site ◽  
Curve Fitting ◽  
The Other ◽  
Practical Advantage ◽  
Analytical Precision ◽  
Fitting Procedures ◽  
Best Fit ◽  
Single Binding Site ◽  
Better Than

Data obtained from routine analytical radioimmunoassays were processed using five curve-fitting procedures, viz. ‘Amersham’, single binding site, four parameter logistic, a linear logit-log and a polynomial logit-log. The polynomial logit-log procedure gave the best fit, but this was probably due to the inherent flexibility of this curve-fitting process since the analytical precision achieved with it was no better than what was obtained with most of the other procedures. A limited study failed to show that statistical weighting of data before curve fitting had any practical advantage.

scholarly journals $$3+1$$ active–sterile neutrino mixing in $$B-L$$ model with $$S_{3}{\times Z_4\times Z_2}$$ symmetry for normal neutrino mass ordering

2021 ◽  
Vol 81 (5) ◽  
Author(s):  
V. V. Vien
Keyword(s):  
Neutrino Mass ◽  
Sterile Neutrino ◽  
Mass Matrix ◽  
Neutrino Masses ◽  
Yukawa Interaction ◽  
Neutrino Mixing ◽  
Normal Ordering ◽  
Mixing Angles ◽  
Active Mixing ◽  
Best Fit

AbstractWe propose a non-renormalizable $$B-L$$ B - L model with $$S_{3}{\times Z_4\times Z_2}$$ S 3 × Z 4 × Z 2 symmetry which successfully accommodates the current active–sterile neutrino mixing in $$3+1$$ 3 + 1 scheme. The $$S_3$$ S 3 flavor symmetry is supplemented by $$Z_4\otimes Z_2$$ Z 4 ⊗ Z 2 symmetry to consolidate the Yukawa interaction of the model. The presence of $$S_3\otimes Z_4\otimes Z_2$$ S 3 ⊗ Z 4 ⊗ Z 2 flavour symmetry plays an important role in generating the desired structure of the neutrino mass matrix. The model can reproduce the recent observed active-neutrino neutrino oscillation data for normal ordering in which two sterile–active mixing angles $$\theta _{14, 24}$$ θ 14 , 24 get the best-fit values and the obtained values of $$\theta _{34}, \delta _{14}, \delta _{14}$$ θ 34 , δ 14 , δ 14 , the sum of neutrino mass and the effective neutrino masses are within their currently allowed ranges.

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