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We wish to search for new neutral particles by investigating the composition of a wide angle neutral beam produced by high energy protons on a Be target. Photons in the beam will be removed by a Pb converter. The resultant neutral beam will be incident on the 30 inch bubble chamber. The composition of the beam will be determined from the kinematic analysis of selected interactions in the bubble chamber, through the decays of neutral particles and through possible anomalies in the hydrogen interactions. As a byproduct we will measure the K-Long flux through the process K-Long + P {yields} K-Short + all. By a slight change in the geometry we can look at a region immediately downstream of the target and measure the characteristics of neutral particles arising from the decay of hyperons and other particles produced in the Be target. We do not require any external equipment besides beam monitoring equipment. We request an initial exposure of 20,000 pictures

An investigation of the components of the neutral beam produced by high energy protons at NAL using the 30 inch bubble chamber