# Difference between revisions of "NOvA results"

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==Electron neutrino appearance results== | ==Electron neutrino appearance results== | ||

− | <math> 33 \nu_{e} </math> candidates were observed with a background of <math> 8.2 \pm 0.8 (syst.) </math>. | + | <math> 33 \ \nu_{e} </math> candidates were observed with a background of <math> 8.2 \pm 0.8 \ (syst.) </math>. |

− | The hypothesis of inverted mass hierarchy with <math> \theta_{23} </math> in the lower octant is disfavored at greater than 93% C.L. for all values of <math> \delta_{CP} < | + | The hypothesis of inverted mass hierarchy with <math> \theta_{23} </math> in the lower octant is disfavored at greater than 93% C.L. for all values of <math> \delta_{CP} </math>. |

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==Electron neutrino appearance results== | ==Electron neutrino appearance results== | ||

− | NOvA had observed <math> 6 \ \nu_{e} </math>-like events in the FD, with a background prediction of <math> 0.99 \pm 0.11 (syst.) </math> | + | NOvA had observed <math> 6 \ \nu_{e} </math>-like events in the FD, with a background prediction of <math> 0.99 \pm 0.11 \ (syst.) </math> |

The range of <math> 0.1 \pi < \delta_{CP} < 0.5\pi </math> in the '''IH''' is disfavored at the 90% C.L. The range of <math> 0.25 \pi < \delta_{CP} < 0.95 \pi </math> in the '''NH''' is disfavored at the 90% C.L. | The range of <math> 0.1 \pi < \delta_{CP} < 0.5\pi </math> in the '''IH''' is disfavored at the 90% C.L. The range of <math> 0.25 \pi < \delta_{CP} < 0.95 \pi </math> in the '''NH''' is disfavored at the 90% C.L. |

## Latest revision as of 11:33, 3 November 2019

## Contents

# Analysis 2019

The best-fit parameters of neutrino oscillation for each choice of octant and hierarchy. The best-fit point is found for the normal hierarchy in the upper octant. In this case:

Other results is showen by table:

NO, LO | IH, UO | IH, LO | |
---|---|---|---|

# Second Analysis

The results of the second analysis were published in 2017. This analysis used an exposure equivalent to from the Fermilab NuMI beam.

## Muon neutino disappearance results

The best fit in the **normal hierarchy** gives:

The best fit in the **inverted hierarchy** gives:

Maximal mixing, where , was disfavored at .

## Electron neutrino appearance results

candidates were observed with a background of .

The hypothesis of inverted mass hierarchy with in the lower octant is disfavored at greater than 93% C.L. for all values of .

## Sterile neutrinos?

# First Analysis

The results of the first analysis were published in 2016. This analysis used a 14 kton-equivalent exposure of from the Fermilab NuMI beam.

## Muon-neutrino disappearance results

Assuming the **normal hierarchy**, the measurements have a next view:

and in the 68% CL range , with two statistically degenerate best-fit values:

Assuming the **inverted hierarchy**, the measurements have a next view:

and in the 68% CL range , with two statistically degenerate best-fit values:

## Electron neutrino appearance results

NOvA had observed -like events in the FD, with a background prediction of

The range of in the **IH** is disfavored at the 90% C.L. The range of in the **NH** is disfavored at the 90% C.L.