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

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

2005-09-30

arxiv.org/abs/hep-ph/0509370v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

2 pages, 1 epsfig; NUFACT'05, 21-26 June 2005, Frascati

Scientific paper

10.1016/j.nuclphysbps.2006.02.03

In this talk we show how the errors on solar and atmospheric parameters affect the measurement of the unknown PMNS parameters $\theta_{13}$ and $\delta$ at future LBL facilities. Performing three parameters fits in $\theta_{13}$, $\delta$ and, in turn, one of the atmospheric or solar parameters, we show that present uncertainties on $\theta_{23}$ and $\Delta m^2_{23}$ worsen significantly the precision on ($\theta_{13}$,$\delta$) 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 $\theta_{13}$ and $\delta$.

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