Neutrino Spectra And Uncertainties For MINOS

The MINOS experiment [1] at Fermilab has released an updated. result on muon disappearance [2]. The experiment utilizes the intense source of muon neutrinos provided by the NuMI beam line. This note summarizes the systematic uncertainties in the experiment's knowledge of the flux and energy spectrum of the neutrinos from NuMI.Physic

Constraints on dark matter annihilation from AMS-02 results

We use recently released data on the positron-to-electron ratio in cosmic rays from the AMS-02 experiment to constrain dark matter annihilation in the Milky Way. Due to the yet unexplained positron excess, limits are generally weaker than those obtained using other probes, especially gamma rays. This also means that explaining the positron excess in terms of dark matter annihilation is difficult. Only if very conservative assumptions on the dark matter distribution in the Galactic Center region are adopted, it may be possible to accommodate dark matter annihilating to leptons with a cross section above 10^-24 cm^3/sec. We comment on several theoretical mechanisms to explain such large annihilation cross sections.Comment: 6 pages, 2 figures, v2: improved treatment of astrophysical uncertainties, improved discussion, matches published versio

The NuMI Neutrino Beam at Fermilab

The Neutrinos at the Main Injector (NuMI) facility at Fermilab is due to begin operations in late 2004. NuMI will deliver an intense muon neutrino beam of variable energy 2-20 GeV directed into the Earth at 58 mrad for short (~1 km) and long (~700-900 km) baseline experiments. Several aspects of the design are reviewed, as are potential upgrade requirements to the facility in the event a Proton Driver is built at Fermilab to enhance the neutrino flux.Comment: Paper given at the ICFA Workshop on High Intensity Hadron Beams (HB2004), Bensheim, Germany, 18-22 October, 200

The Eastern European revolution and education in Czechoslovakia

The author summarizes the state of the education system in the Czechoslowak Socialist Republic and then describes the first changes beginning in 1990: 1) structural changes and 2) changes in the content of education. (DIPF/Bi.

The treatment of the Soviet Union in eight sixth grade geography textbooks

Thesis (Ed.M.)--Boston Universit

The NuMI Beam At FNAL And Its Use For Neutrino Cross Section Measurements

The Neutrinos at the Main Injector (NuMI) facility at Fermilab began operations in late 2004. NuMI will deliver an intense v, beam of variable energy (2-20 GeV). Several aspects of the design and results from runs of the MINOS experiment are reviewed. I also discuss technique to measure directly the neutrino flux using a muon flux system at the end of the NuMI line.Physic