Event calendar file
Altas Energías
**EXTRAORDINARIO** (Notar Lugar, D'ia y hora)Revisiting constraints on 3+1 active-sterile neutrino mixing using IceCube data
by Dr. Salvador Miranda Palacios (University of Johannesburg)
Friday, 10 January 2020
from
to
(Mexico/General)
at ICN-UNAM ( Salon de seminarios B-302, 3er nivel edificio B )
at ICN-UNAM ( Salon de seminarios B-302, 3er nivel edificio B )
Instituto de Ciencias Nucleares,
Universidad Nacional Autónoma de México,
Avenida Universidad No. 3000, Col. UNAM-C.U. Distrito Federal, C.P. 04510, México
| Description |
We analyze published IceCube data based on two different active-sterile
mixing schemes using one additional sterile neutrino flavor. We present
exclusion regions in the parameter ranges 0.01 ≤ sin^2 θ_{24} ≤ 0.1 and
0.1 eV^2 ≤ ∆m^2 {42} ≤ 10 eV^2 for the mass-mixing and flavor mixing
schemes. Under the more conservative mass-mixing scheme, 3σ CL allowed
regions for the appearance experiment and MiniBooNE latest result are
excluded at more or equal to 3σ CL. In case of less-restrictive
flavor-mixing scheme, results from the appearance experiments are excluded
at more or equal 2σ CL. We also find that including prompt component of the
atmospheric neutrino flux relaxes constraints on sterile mixing for
∆m^2_{42} more or equal 1 eV^2 .
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| Support | Email: alexis@nucleares.unam.mx |
