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The measurement of $θ_{13}$ and $δ$: the role of the uncertainties on the solar and atmospheric parameters

D. Meloni
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Abstract

In this talk we show how the errors on solar and atmospheric parameters affect the measurement of the unknown PMNS parameters $θ_{13}$ and $δ$ at future LBL facilities. Performing three parameters fits in $θ_{13}$, $δ$ and, in turn, one of the atmospheric or solar parameters, we show that present uncertainties on $θ_{23}$ and $Δm^2_{23}$ worsen significantly the precision on ($θ_{13}$,$δ$) whereas the solar sector does not introduce further uncertainties. A precision on the atmospheric parameters similar to what expected at T2K-I is necessary to improve the sensitivities to $θ_{13}$ and $δ$.

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D. Meloni. 2005-09-30. The measurement of $θ_{13}$ and $δ$: the role of the uncertainties on the solar and atmospheric parameters. https://doi.org/10.1016/j.nuclphysbps.2006.02.038

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