Approximative two-flavor framework for neutrino oscillations with non-standard interactions

Authors:
  • MBMattias Blennow
    Mattias Blennow
  • TOTommy Ohlsson
    Tommy Ohlsson

Abstract
In this paper, we develop approximative two-flavor neutrino oscillation formulas including sub-leading non-standard interaction effects. Especially, the limit when the small mass squared difference approaches zero is investigated. The approximate formulas are also tested against numerical simulations in order to determine their accuracy and they will probably be most useful in the GeV energy region, which is the energy region where most upcoming neutrino oscillation experiments will be operating. Naturally, it is important to have analytical formulas in order to interpret the physics behind the degeneracies between standard and non-standard parameters.