these events are selected by requiring a cluster with E > 200 MeV, with a velocity in the range 0.195-0.2475 (beta*, i.e. the K Long velocity in the phi rest frame) and with an angle cos(theta) < 0.7
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The K Long that does not decay in the drift chamber, but interacts in
the calorimeter is called a "K crash"; these events are selected by requiring a cluster with E > 200 MeV, with a velocity in the range 0.195-0.2475 (beta*, i.e. the K Long velocity in the phi rest frame) and with an angle cos(theta) < 0.7
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