Two independent experiments in the US and Europe will study the properties of neutrinos, the most elusive particles of the Universe. One experiment, called NUMI, proposes to send a beam of neutrinos from the accelerator at Fermilab in Chicago to a detector placed in a disused iron mine in Minnesota. Along the way, the neutrinos will change into other neutrinos if they have mass. This will be detected. In another experiment, a detector at the Gran Sasso Laboratory in the Italian Alps will trace neutrinos from the accelerator at CERN, Geneva. If scientists find money for both the experiments, the status of neutrino and its mass will be settled (Nature, Vo1395, No 6698).
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