Sterile Analysis with ANTARES N. R. Khan Chowdhury 1 May 28, 2019 | - PowerPoint PPT Presentation

Sterile Analysis with ANTARES N. R. Khan Chowdhury 1 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

Input steriles configuration: Theta_14 = 0; Fixed. Delta_m41 = 0.5 eV 2 . Fixed. Delta_14 = 0; Fixed. Theta_24, Theta34 varied in the fit. (exclusion plot) Delta_24 fitted with starting value at 0. Mass hierarchy: NO. Runtime: 2007 - 2016 (10 y) StLowMinimizer_Data_Lb.cc Calculates the chisq_min fitting over oscillation (std. + str.) and systematic parameters and returns BF values. StLowContourFirstBinb_Data_LbNoMuon.cc Creates a 2D histogram with chisq values relative to the chisq_min, in the sterile plane taking the BF values as starting points in the fit. 2 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

Results: 3 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

Steriles + NSI: IceCube allowed region in the sterile plane excludes parameter space favoured by MiniBooNe/LNSD at 99%CL. [3+1 Model, Blue line] Proposition that inclusion of non-standard interactions will alleviate the tension. [(3+1)+ NSI Model, Red line] PhysRevLett.117.071802 This paper ( arXiv:1810.11940 ) claims that it is an artefact of the energy range in the choosen datasets. 4 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

Probabilities: P (numu -> numu) P (anumu -> anumu) 1) MSW resonance in the anti-neutrino mode. 2) modification in osc. probabilities in the (3+1)+NSI model. 3) shift in resonance dip. 5 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

Results: 1) Asymmetry diminishes in the (3+1)+ NSI model compared to 3+1 Model, which leads to happy interpretation of MiniBooNE results in compliance with IceCube. 2) Extension of the energy range is imperative and it will increase the asymmetry leading to more stringent bounds on sterile parameter space. 3) A detailed analysis by IceCube Collaboration to put correct limits on 3+1 Model is foreseen. P (anumu -> anumu) 6 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

Summary/Plans: The initial goal to reproduce the Sterile analysis is done. (Thanks to Alba.) To obtain NSI allowed regions with ANTARES. (Hopefully before Nantes.) Steriles + NSI in near future. 7 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

THANKS 8 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |

my plot published plot 9 May 28, 2019 | N. R. Khan Chowdhury | Group Meeting | INFN, Genoa |