Status of 3+1 neutrino mixing

We present an update of our analysis of short-baseline neutrino oscillation data in the framework of 3 + 1 neutrino mixing taking into account the recent update of MiniBooNE antineutrino data and the recent results of the MINOS search for nu(mu) disappearance into sterile neutrinos (the more complicated 3 + 2 neutrino mixing is not needed since the CP-violating difference between MiniBooNE neutrino and antineutrino data has diminished). The results of our fits of short-baseline neutrino oscillation data including the MiniBooNE low-energy anomaly (now present both in the neutrino and antineutrino data) lead to a strong tension between appearance and disappearance data. Hence, it seems likely that the low-energy anomaly is not due to ((-))nu(mu) -> ((-))nu(e) transitions. Excluding the MiniBooNE low-energy anomaly, appearance and disappearance data are marginally compatible. The global analysis has the best-fit point at Delta m(41)(2) approximate to 5.6 eV(2), which is rather large in comparison with cosmological bounds, but there are three regions within 1 sigma at Delta m(41)(2) approximate to 1.6, 1.2, 0.91 eV(2). We also show that the data on the Gallium neutrino anomaly favor values of Delta m(41)(2) larger than about 1 eV(2).